Contents: Overview | Generic (SAE) Codes (660) | Most Common Codes
Mfg. Proprietary: Chrysler (102) [jeep (117)] | Ford (158) | GM (296) | Subaru (93) | Toyota (53) | Honda (47) | Volkswagen - Audi (426)
Numbers in (parens) is the number of proprietary codes for that manufacturer.
See glossary for terms and acronyms.

Overview :
Starting in the '70s car manufacturers started to include on-board diagnostic (OBD) systems (a computer) which would store trouble codes when a problem was detected. This code could be read with a code reader or scanner connected to the computer. The driver was notified that a problem had been detected by turning a Check Engine Light (CEL) , officially called a Malfunction Indicator Lamp (MIL). In some cars there is also a "Generator" light which can come on with some codes.
See Diagnostics on the Check Engine Page for more information.

How the Diagnostic Trouble Code is created: A DTC is made up of 5 digits. The chart below shows the composition of a DTC. With this information you can easily determine what system to trouble shoot without knowing the exact description of the code.

                 X  X  X  X X
                 |  |  |   |
                 |  |  |   |
B Body ----------+  |  |   +-- Fault (00 to 99)
C Chassis -------+  |  |
P Powertrain ----+  |  |
U Network -------+  |  +------ 1 Fuel & Air Metering
                    |  +------ 2 Fuel & Air Metering (Injector)
                    |  +------ 3 Ignition System or Misfire
0,2 SAE ------------+  +------ 4 Auxiliary Emission Controls
1 MFG --------------+  +------ 5 Vehicle Speed & Idle Control System
                       +------ 6 Computer Output Citcuit
                       +------ 7 Transmission
                       +------ 8 Transmission
                       +------ 9 Reserved
                       +------ 0 Reserved

Generic (Universal, SAE) Codes (660):

   Code    Description
P0010    "A" Camshaft Position - Actuator Circuit (Bank 1)
P0011    "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
P0012    "A" Camshaft Position - Timing Over-Retarded (Bank 1)
P0013    "B" Camshaft Position - Actuator Circuit (Bank 1)
P0014    "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
P0015    "B" Camshaft Position - Timing Over-Retarded (Bank 1)
P0020    "A" Camshaft Position - Actuator Circuit (Bank 2)
P0021    "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
P0022    "A" Camshaft Position - Timing Over-Retarded (Bank 2)
P0023    "B" Camshaft Position - Actuator Circuit (Bank 2)
P0024    "B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
P0025    "B" Camshaft Position - Timing Over-Retarded (Bank 2)
P0030    HO2S Heater Control Circuit (Bank 1 Sensor 1)
P0031    HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
P0032    HO2S Heater Control Circuit High (Bank 1 Sensor 1)
P0033    Turbo Charger Bypass Valve Control Circuit
P0034    Turbo Charger Bypass Valve Control Circuit Low
P0035    Turbo Charger Bypass Valve Control Circuit High
P0036    HO2S Heater Control Circuit (Bank 1 Sensor 2)
P0037    HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
P0038    HO2S Heater Control Circuit High (Bank 1 Sensor 2)
P0042    HO2S Heater Control Circuit (Bank 1 Sensor 3)
P0043    HO2S Heater Control Circuit Low (Bank 1 Sensor 3)
P0044    HO2S Heater Control Circuit High (Bank 1 Sensor 3)
P0050    HO2S Heater Control Circuit (Bank 2 Sensor 1)
P0051    HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
P0052    HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0056    HO2S Heater Control Circuit (Bank 2 Sensor 2)
P0057    HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
P0058    HO2S Heater Control Circuit High (Bank 2 Sensor 2)
P0062    HO2S Heater Control Circuit (Bank 2 Sensor 3)
P0063    HO2S Heater Control Circuit Low (Bank 2 Sensor 3)
P0064    HO2S Heater Control Circuit High (Bank 2 Sensor 3)
P0065    Air Assisted Injector Control Range/Performance
P0066    Air Assisted Injector Control Circuit or Circuit Low
P0067    Air Assisted Injector Control Circuit High
P0070    Ambient Air Temperature Sensor Circuit
P0071    Ambient Air Temperature Sensor Range/Performance
P0072    Ambient Air Temperature Sensor Circuit Low Input
P0073    Ambient Air Temperature Sensor Circuit High Input
P0074    Ambient Air Temperature Sensor Circuit Intermittent
P0075    Intake Valve Control Solenoid Circuit (Bank 1)
P0076    Intake Valve Control Solenoid Circuit Low (Bank 1)
P0077    Intake Valve Control Solenoid Circuit High (Bank 1)
P0078    Exhaust Valve Control Solenoid Circuit (Bank 1)
P0079    Exhaust Valve Control Solenoid Circuit Low (Bank 1)
P0080    Exhaust Valve Control Solenoid Circuit High (Bank 1)
P0081    Intake Valve Control Solenoid Circuit (Bank 2)
P0082    Intake Valve Control Solenoid Circuit Low (Bank 2)
P0083    Intake Valve Control Solenoid Circuit High (Bank 2)
P0084    Exhaust Valve Control Solenoid Circuit (Bank 2)
P0085    Exhaust Valve Control Solenoid Circuit Low (Bank 2)
P0086    Exhaust Valve Control Solenoid Circuit High (Bank 2)
P0100    Mass or Volume Air Flow Circuit Malfunction
P0101    Mass or Volume Circuit Range Performance Problem
P0102    Mass or Volume Circuit Low Input
P0103    Mass or Volume Circuit High Input
P0104    Mass or Volume Circuit Intermittent
P0105    Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
P0106    Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
P0107    Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
P0108    Manifold Absolute Pressure/Barometric Pressure Circuit High Input
P0109    Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
P0110    Intake Air Temperature Circuit Malfunction
P0111    Intake Air Temperature Circuit Range/Performance Problem
P0112    Intake Air Temperature Circuit Low Input
P0113    Intake Air Temperature Circuit High Input
P0114    Intake Air Temperature Circuit Intermittent
P0115    Engine Coolant Temperature Circuit Malfunction
P0116    Engine Coolant Temperature Circuit Range/Performance Problem
P0117    Engine Coolant Temperature Circuit Low Input
P0118    Engine Coolant Temperature Circuit High Input
P0119    Engine Coolant Temperature Circuit Intermittent
P0120    Throttle/Pedal Position Sensor/Switch A Circuit Malfunction
P0121    Throttle/Pedal Position Sensor/Switch A Circuit Range/ Performance Problem
P0122    Throttle/Pedal Position Sensor/Switch A Circuit Low Input
P0123    Throttle/Pedal Position Sensor/Switch A Circuit High Input
P0124    Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
P0125    Insufficient Coolant Temperature for Closed Loop Fuel Control
P0126    Insufficient Coolant Temperature for Stable Operation
P0127    Intake Air Temperature Too High
P0128    Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
P0130    O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
P0131    O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
P0132    O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
P0133    O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0134    O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0135    O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0136    O2 Sensor Circuit Malfunction (Bank 1 Sensor 2)
P0137    O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
P0138    O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
P0139    O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0140    O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0141    O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0142    O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)
P0143    O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
P0144    O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)
P0145    O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0146    O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)
P0147    O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3)
P0148    Fuel Delivery Error
P0149    Fuel Timing Error
P0150    O2 Sensor Circuit Malfunction (Bank 2 Sensor 1)
P0151    O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)
P0152    O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
P0153    O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)
P0154    O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
P0155    O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0156    O2 Sensor Circuit Malfunction (Bank 2 Sensor 2)
P0157    O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158    O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0159    O2 Sensor Circuit Slow Response (Bank 2 Sensor 2)
P0160    O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P0161    O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
P0162    O2 Sensor Circuit Malfunction (Bank 2 Sensor 3)
P0163    O2 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
P0164    O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)
P0165    O2 Sensor Circuit Slow Response (Bank 2 Sensor 3)
P0166    O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
P0167    O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)
P0168    Fuel Temperature Too High
P0169    Incorrect Fuel Composition
P0170    Fuel Trim Malfunction (Bank 1)
P0171    System too Lean (Bank 1)
P0172    System too Rich (Bank 1)
P0173    Fuel Trim Malfunction (Bank 2)
P0174    System too Lean (Bank 2)
P0175    System too Rich (Bank 2)
P0176    Fuel Composition Sensor Circuit Malfunction
P0177    Fuel Composition Sensor Circuit Range/Performance
P0178    Fuel Composition Sensor Circuit Low Input
P0179    Fuel Composition Sensor Circuit High Input
P0180    Fuel Temperature Sensor A Circuit Malfunction
P0181    Fuel Temperature Sensor A Circuit Range/Performance
P0182    Fuel Temperature Sensor A Circuit Low Input
P0183    Fuel Temperature Sensor A Circuit High Input
P0184    Fuel Temperature Sensor A Circuit Intermittent
P0185    Fuel Temperature Sensor B Circuit Malfunction
P0186    Fuel Temperature Sensor B Circuit Range/Performance
P0187    Fuel Temperature Sensor B Circuit Low Input
P0188    Fuel Temperature Sensor B Circuit High Input
P0189    Fuel Temperature Sensor B Circuit Intermittent
P0190    Fuel Rail Pressure Sensor Circuit Malfunction
P0191    Fuel Rail Pressure Sensor Circuit Range/Performance
P0192    Fuel Rail Pressure Sensor Circuit Low Input
P0193    Fuel Rail Pressure Sensor Circuit High Input
P0194    Fuel Rail Pressure Sensor Circuit Intermittent
P0195    Engine Oil Temperature Sensor Malfunction
P0196    Engine Oil Temperature Sensor Range/Performance
P0197    Engine Oil Temperature Sensor Low
P0198    Engine Oil Temperature Sensor High
P0199    Engine Oil Temperature Sensor Intermittent
P0200    Injector Circuit Malfunction
P0201    Injector Circuit Malfunction - Cylinder 1
P0202    Injector Circuit Malfunction - Cylinder 2
P0203    Injector Circuit Malfunction - Cylinder 3
P0204    Injector Circuit Malfunction - Cylinder 4
P0205    Injector Circuit Malfunction - Cylinder 5
P0206    Injector Circuit Malfunction - Cylinder 6
P0207    Injector Circuit Malfunction - Cylinder 7
P0208    Injector Circuit Malfunction - Cylinder 8
P0209    Injector Circuit Malfunction - Cylinder 9
P0210    Injector Circuit Malfunction - Cylinder 10
P0211    Injector Circuit Malfunction - Cylinder 11
P0212    Injector Circuit Malfunction - Cylinder 12
P0213    Cold Start Injector 1 Malfunction
P0214    Cold Start Injector 2 Malfunction
P0215    Engine Shutoff Solenoid Malfunction
P0216    Injection Timing Control Circuit Malfunction
P0217    Engine Overtemp Condition
P0218    Transmission Over Temperature Condition
P0219    Engine Overspeed Condition
P0220    Throttle/Pedal Position Sensor/Switch B Circuit Malfunction
P0221    Throttle/Pedal Position Sensor/Switch B Circuit Range/ Performance Problem
P0222    Throttle/Pedal Position Sensor/Switch B Circuit Low Input
P0223    Throttle/Pedal Position Sensor/Switch B Circuit High Input
P0224    Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
P0225    Throttle/Pedal Position Sensor/Switch C Circuit Malfunction
P0226    Throttle/Pedal Position Sensor/Switch C Circuit Range/ Performance Problem
P0227    Throttle/Pedal Position Sensor/Switch C Circuit Low Input
P0228    Throttle/Pedal Position Sensor/Switch C Circuit High Input
P0229    Throttle/Pedal Position Sensor/Switch C Circuit Intermittent
P0230    Fuel Pump Primary Circuit Malfunction
P0231    Fuel Pump Secondary Circuit Low
P0232    Fuel Pump Secondary Circuit High
P0233    Fuel Pump Secondary Circuit Intermittent
P0234    Engine Overboost Condition
P0235    Turbocharger Boost Sensor A Circuit Malfunction
P0236    Turbocharger Boost Sensor A Circuit Range/Performance
P0237    Turbocharger Boost Sensor A Circuit Low
P0238    Turbocharger Boost Sensor A Circuit High
P0239    Turbocharger Boost Sensor B Circuit Malfunction
P0240    Turbocharger Boost Sensor B Circuit Range/Performance
P0241    Turbocharger Boost Sensor B Circuit Low
P0242    Turbocharger Boost Sensor B Circuit High
P0243    Turbocharger Wastegate Solenoid A Malfunction
P0244    Turbocharger Wastegate Solenoid A Range/Performance
P0245    Turbocharger Wastegate Solenoid A Low
P0246    Turbocharger Wastegate Solenoid A High
P0247    Turbocharger Wastegate Solenoid B Malfunction
P0248    Turbocharger Wastegate Solenoid B Range/Performance
P0249    Turbocharger Wastegate Solenoid B Low
P0250    Turbocharger Wastegate Solenoid B High
P0251    Injection Pump A Rotor/Cam Malfunction
P0252    Injection Pump A Rotor/Cam Range/Performance
P0253    Injection Pump A Rotor/Cam Low
P0254    Injection Pump A Rotor/Cam High
P0255    Injection Pump A Rotor/Cam Intermitted
P0256    Injection Pump B Rotor/Cam Malfunction
P0257    Injection Pump B Rotor/Cam Range/Performance
P0258    Injection Pump B Rotor/Cam Low
P0259    Injection Pump B Rotor/Cam High
P0260    Injection Pump B Rotor/Cam Intermitted
P0261    Cylinder 1 Injector Circuit Low
P0262    Cylinder 1 Injector Circuit High
P0263    Cylinder 1 Contribution/Balance Fault
P0264    Cylinder 2 Injector Circuit Low
P0265    Cylinder 2 Injector Circuit High
P0266    Cylinder 2 Contribution/Balance Fault
P0267    Cylinder 3 Injector Circuit Low
P0268    Cylinder 3 Injector Circuit High
P0269    Cylinder 3 Contribution/Balance Fault
P0270    Cylinder 4 Injector Circuit Low
P0271    Cylinder 4 Injector Circuit High
P0272    Cylinder 4 Contribution/Balance Fault
P0273    Cylinder 5 Injector Circuit Low
P0274    Cylinder 5 Injector Circuit High
P0275    Cylinder 5 Contribution/Balance Fault
P0276    Cylinder 6 Injector Circuit Low
P0277    Cylinder 6 Injector Circuit High
P0278    Cylinder 6 Contribution/Balance Fault
P0279    Cylinder 7 Injector Circuit Low
P0280    Cylinder 7 Injector Circuit High
P0281    Cylinder 7 Contribution/Balance Fault
P0282    Cylinder 8 Injector Circuit Low
P0283    Cylinder 8 Injector Circuit High
P0284    Cylinder 8 Contribution/Balance Fault
P0285    Cylinder 9 Injector Circuit Low
P0286    Cylinder 9 Injector Circuit High
P0287    Cylinder 9 Contribution/Balance Fault
P0288    Cylinder 10 Injector Circuit Low
P0289    Cylinder 10 Injector Circuit High
P0290    Cylinder 10 Contribution/Balance Fault
P0291    Cylinder 11 Injector Circuit Low
P0292    Cylinder 11 Injector Circuit High
P0293    Cylinder 11 Contribution/Balance Fault
P0294    Cylinder 12 Injector Circuit Low
P0295    Cylinder 12 Injector Circuit High
P0296    Cylinder 12 Contribution/Balance Fault
P0298    Engine Oil Over Temperature
P0300    Random/Multiple Cylinder Misfire Detected
P0301    Cylinder 1 Misfire Detected
P0302    Cylinder 2 Misfire Detected
P0303    Cylinder 3 Misfire Detected
P0304    Cylinder 4 Misfire Detected
P0305    Cylinder 5 Misfire Detected
P0306    Cylinder 6 Misfire Detected
P0307    Cylinder 7 Misfire Detected
P0308    Cylinder 8 Misfire Detected
P0309    Cylinder 9 Misfire Detected
P0310    Cylinder 10 Misfire Detected
P0311    Cylinder 11 Misfire Detected
P0312    Cylinder 12 Misfire Detected
P0313    Misfire Detected with Low Fuel
P0314    Single Cylinder Misfire (Cylinder not specified)
P0320    Ignition/Distributor Engine Speed Input Circuit Malfunction
P0321    Ignition/Distributor Engine Speed Input Circuit Range/ Performance
P0322    Ignition/Distributor Engine Speed Input Circuit No Signal
P0323    Ignition/Distributor Engine Speed Input Circuit Intermittent
P0324    Knock Control System Error
P0325    Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)
P0326    Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
P0327    Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
P0328    Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0329    Knock Sensor 1 Circuit Intermittent (Bank 1 or Single Sensor)
P0330    Knock Sensor 2 Circuit Malfunction (Bank 2)
P0331    Knock Sensor 2 Circuit Range/Performance (Bank 2)
P0332    Knock Sensor 2 Circuit Low Input (Bank 2)
P0333    Knock Sensor 2 Circuit High Input (Bank 2)
P0334    Knock Sensor 2 Circuit Intermittent (Bank 2)
P0335    Crankshaft Position Sensor A Circuit Malfunction
P0336    Crankshaft Position Sensor A Circuit Range/Performance
P0337    Crankshaft Position Sensor A Circuit Low Input
P0338    Crankshaft Position Sensor A Circuit High Input
P0339    Crankshaft Position Sensor A Circuit Intermittent
P0340    Camshaft Position Sensor Circuit Malfunction
P0341    Camshaft Position Sensor Circuit Range/Performance
P0342    Camshaft Position Sensor Circuit Low Input
P0343    Camshaft Position Sensor Circuit High Input
P0344    Camshaft Position Sensor Circuit Intermittent
P0345    Camshaft Position Sensor "A" Circuit (Bank 2)
P0346    Camshaft Position Sensor "A" Circuit Range/Performance (Bank 2)
P0347    Camshaft Position Sensor "A" Circuit Low Input (Bank 2)
P0348    Camshaft Position Sensor "A" Circuit High Input (Bank 2)
P0349    Camshaft Position Sensor "A" Circuit Intermittent (Bank 2)
P0350    Ignition Coil Primary/Secondary Circuit Malfunction
P0351    Ignition Coil A Primary/Secondary Circuit Malfunction
P0352    Ignition Coil B Primary/Secondary Circuit Malfunction
P0353    Ignition Coil C Primary/Secondary Circuit Malfunction
P0354    Ignition Coil D Primary/Secondary Circuit Malfunction
P0355    Ignition Coil E Primary/Secondary Circuit Malfunction
P0356    Ignition Coil F Primary/Secondary Circuit Malfunction
P0357    Ignition Coil G Primary/Secondary Circuit Malfunction
P0358    Ignition Coil H Primary/Secondary Circuit Malfunction
P0359    Ignition Coil I Primary/Secondary Circuit Malfunction
P0360    Ignition Coil J Primary/Secondary Circuit Malfunction
P0361    Ignition Coil K Primary/Secondary Circuit Malfunction
P0362    Ignition Coil L Primary/Secondary Circuit Malfunction
P0365    Camshaft Position Sensor "B" Circuit (Bank 1)
P0366    Camshaft Position Sensor "B" Circuit Range/Performance (Bank 1)
P0367    Camshaft Position Sensor "B" Circuit Low Input (Bank 1)
P0368    Camshaft Position Sensor "B" Circuit High Input (Bank 1)
P0369    Camshaft Position Sensor "B" Circuit Intermittent (Bank 1)
P0370    Timing Reference High Resolution Signal A Malfunction
P0371    Timing Reference High Resolution Signal A Too Many Pulses
P0372    Timing Reference High Resolution Signal A Too Few Pulses
P0373    Timing Reference High Resolution Signal A Intermittent/ Erratic Pulses
P0374    Timing Reference High Resolution Signal A No Pulses
P0375    Timing Reference High Resolution Signal B Malfunction
P0376    Timing Reference High Resolution Signal B Too Many Pulses
P0377    Timing Reference High Resolution Signal B Too Few Pulses
P0378    Timing Reference High Resolution Signal B Intermittent/Erratic Pulses
P0379    Timing Reference High Resolution Signal B No Pulses
P0380    Glow Plug/Heater Circuit Malfunction
P0381    Glow Plug/Heater Indicator Circuit Malfunction
P0382    Glow Plug/Heater Circuit "B" Malfunction
P0385    Crankshaft Position Sensor B Circuit Malfunction
P0386    Crankshaft Position Sensor B Circuit Range/Performance
P0387    Crankshaft Position Sensor B Circuit Low Input
P0388    Crankshaft Position Sensor B Circuit High Input
P0389    Crankshaft Position Sensor B Circuit Intermittent
P0390    Camshaft Position Sensor "B" Circuit (Bank 2)
P0391    Camshaft Position Sensor "B" Circuit Range/Performance (Bank 2)
P0392    Camshaft Position Sensor "B" Circuit Low Input (Bank 2)
P0393    Camshaft Position Sensor "B" Circuit High Input (Bank 2)
P0394    Camshaft Position Sensor "B" Circuit Intermittent (Bank 2)
P0400    Exhaust Gas Recirculation Flow Malfunction
P0401    Exhaust Gas Recirculation Flow Insufficient Detected
P0402    Exhaust Gas Recirculation Flow Excessive Detected
P0403    Exhaust Gas Recirculation Circuit Malfunction
P0404    Exhaust Gas Recirculation Circuit Range/Performance
P0405    Exhaust Gas Recirculation Sensor A Circuit Low
P0406    Exhaust Gas Recirculation Sensor A Circuit High
P0407    Exhaust Gas Recirculation Sensor B Circuit Low
P0408    Exhaust Gas Recirculation Sensor B Circuit High
P0409    Exhaust Gas Recirculation Sensor "A" Circuit
P0410    Secondary Air Injection System Malfunction
P0411    Secondary Air Injection System Incorrect Flow Detected
P0412    Secondary Air Injection System Switching Valve A Circuit Malfunction
P0413    Secondary Air Injection System Switching Valve A Circuit Open
P0414    Secondary Air Injection System Switching Valve A Circuit Shorted
P0415    Secondary Air Injection System Switching Valve B Circuit Malfunction
P0416    Secondary Air Injection System Switching Valve B Circuit Open
P0417    Secondary Air Injection System Switching Valve B Circuit Shorted
P0418    Secondary Air Injection System Relay "A" Circuit Malfunction
P0419    Secondary Air Injection System Relay "B" Circuit Malfunction
P0420    Catalyst System Efficiency Below Threshold (Bank 1)
P0421    Warm Up Catalyst Efficiency Below Threshold (Bank 1)
P0422    Main Catalyst Efficiency Below Threshold (Bank 1)
P0423    Heated Catalyst Efficiency Below Threshold (Bank 1)
P0424    Heated Catalyst Temperature Below Threshold (Bank 1)
P0425    Catalyst Temperature Sensor (Bank 1)
P0426    Catalyst Temperature Sensor Range/Performance (Bank 1)
P0427    Catalyst Temperature Sensor Low Input (Bank 1)
P0428    Catalyst Temperature Sensor High Input (Bank 1)
P0429    Catalyst Heater Control Circuit (Bank 1)
P0430    Catalyst System Efficiency Below Threshold (Bank 2)
P0431    Warm Up Catalyst Efficiency Below Threshold (Bank 2)
P0432    Main Catalyst Efficiency Below Threshold (Bank 2)
P0433    Heated Catalyst Efficiency Below Threshold (Bank 2)
P0434    Heated Catalyst Temperature Below Threshold (Bank 2)
P0435    Catalyst Temperature Sensor (Bank 2)
P0436    Catalyst Temperature Sensor Range/Performance (Bank 2)
P0437    Catalyst Temperature Sensor Low Input (Bank 2)
P0438    Catalyst Temperature Sensor High Input (Bank 2)
P0439    Catalyst Heater Control Circuit (Bank 2)
P0440    Evaporative Emission Control System Malfunction (posible fuel cap [gas cap] loose/off)
P0441    Evaporative Emission Control System Incorrect Purge Flow
P0442    Evaporative Emission Control System Leak Detected (medium leak) (posible fuel cap [gas cap] loose/off)
P0443    Evaporative Emission Control System Purge Control Valve Circuit Malfunction
P0444    Evaporative Emission Control System Purge Control Valve Circuit Open
P0445    Evaporative Emission Control System Purge Control Valve Circuit Shorted
P0446    Evaporative Emission Control System Vent Control Circuit Malfunction
P0447    Evaporative Emission Control System Vent Control Open
P0448    Evaporative Emission Control System Vent Control Circuit Shorted
P0449    Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
P0450    Evaporative Emission Control System Pressure Sensor Malfunction
P0451    Evaporative Emission Control System Pressure Sensor Range/ Performance
P0452    Evaporative Emission Control System Pressure Sensor Low Input
P0453    Evaporative Emission Control System Pressure Sensor High Input
P0454    Evaporative Emission Control System Pressure Sensor Intermittent
P0455    Evaporative Emission Control System Leak Detected (gross leak)
  See EVAP codes
P0456    Evaporative Emission Control System Leak Detected (very small leak) (posible fuel cap [gas cap] loose/off)
  See EVAP codes
P0457    Evaporative Emission Control System Leak Detected (posible fuel cap [gas cap] loose/off)
  See EVAP codes
P0460    Fuel Level Sensor Circuit Malfunction
P0461    Fuel Level Sensor Circuit Range/Performance
P0462    Fuel Level Sensor Circuit Low Input
P0463    Fuel Level Sensor Circuit High Input
P0464    Fuel Level Sensor Circuit Intermittent
P0465    Purge Flow Sensor Circuit Malfunction
P0466    Purge Flow Sensor Circuit Range/Performance
P0467    Purge Flow Sensor Circuit Low Input
P0468    Purge Flow Sensor Circuit High Input
P0469    Purge Flow Sensor Circuit Intermittent
P0470    Exhaust Pressure Sensor Malfunction
P0471    Exhaust Pressure Sensor Range/Performance
P0472    Exhaust Pressure Sensor Low
P0473    Exhaust Pressure Sensor High
P0474    Exhaust Pressure Sensor Intermittent
P0475    Exhaust Pressure Control Valve Malfunction
P0476    Exhaust Pressure Control Valve Range/Performance
P0477    Exhaust Pressure Control Valve Low
P0478    Exhaust Pressure Control Valve High
P0479    Exhaust Pressure Control Valve Intermittent
P0480    Cooling Fan 1 Control Circuit Malfunction
P0481    Cooling Fan 2 Control Circuit Malfunction
P0482    Cooling Fan 3 Control Circuit Malfunction
P0483    Cooling Fan Rationality Check Malfunction
P0484    Cooling Fan Circuit Over Current
P0485    Cooling Fan Power/Ground Circuit Malfunction
P0486    Exhaust Gas Recirculation Sensor "B" Circuit
P0487    Exhaust Gas Recirculation Throttle Position Control Circuit
P0488    Exhaust Gas Recirculation Throttle Position Control Range/ Performance
P0491    Secondary Air Injection System (Bank 1)
P0492    Secondary Air Injection System (Bank 2)
P0500    Vehicle Speed Sensor Malfunction
P0501    Vehicle Speed Sensor Range/Performance
P0502    Vehicle Speed Sensor Circuit Low Input
P0503    Vehicle Speed Sensor Intermittent/Erratic/High
P0505    Idle Control System Malfunction
P0506    Idle Control System RPM Lower Than Expected
P0507    Idle Control System RPM Higher Than Expected
P0508    Idle Control System Circuit Low
P0509    Idle Control System Circuit High
P0510    Closed Throttle Position Switch Malfunction
P0512    Starter Request Circuit
P0513    Incorrect Immobilizer Key ("Immobilizer" pending SAE J1930 approval)
P0515    Battery Temperature Sensor Circuit
P0516    Battery Temperature Sensor Circuit Low
P0517    Battery Temperature Sensor Circuit High
P0520    Engine Oil Pressure/Switch Circuit Malfunction
P0521    Engine Oil Pressure/Switch Range/Performance
P0522    Engine Oil Pressure/Switch Low Voltage
P0523    Engine Oil Pressure/Switch High Voltage
P0524    Engine Oil Pressure Too Low
P0530    A/C Refrigerant Pressure Sensor Circuit Malfunction
P0531    A/C Refrigerant Pressure Sensor Circuit Range/Performance
P0532    A/C Refrigerant Pressure Sensor Circuit Low Input
P0533    A/C Refrigerant Pressure Sensor Circuit High Input
P0534    Air Conditioner Refrigerant Charge Loss
P0540    Intake Air Heater Circuit
P0541    Intake Air Heater Circuit Low
P0542    Intake Air Heater Circuit High
P0544    Exhaust Gas Temperature Sensor Circuit (Bank 1)
P0545    Exhaust Gas Temperature Sensor Circuit Low (Bank 1)
P0546    Exhaust Gas Temperature Sensor Circuit High (Bank 1)
P0547    Exhaust Gas Temperature Sensor Circuit (Bank 2)
P0548    Exhaust Gas Temperature Sensor Circuit Low (Bank 2)
P0549    Exhaust Gas Temperature Sensor Circuit High (Bank 2)
P0550    Power Steering Pressure Sensor Circuit Malfunction
P0551    Power Steering Pressure Sensor Circuit Range/Performance
P0552    Power Steering Pressure Sensor Circuit Low Input
P0553    Power Steering Pressure Sensor Circuit High Input
P0554    Power Steering Pressure Sensor Circuit Intermittent
P0560    System Voltage Malfunction
P0561    System Voltage Unstable
P0562    System Voltage Low
P0563    System Voltage High
P0564    Cruise Control Multi-Function Input Signal
P0565    Cruise Control On Signal Malfunction
P0566    Cruise Control Off Signal Malfunction
P0567    Cruise Control Resume Signal Malfunction
P0568    Cruise Control Set Signal Malfunction
P0569    Cruise Control Coast Signal Malfunction
P0570    Cruise Control Accel Signal Malfunction
P0571    Cruise Control/Brake Switch A Circuit Malfunction
P0572    Cruise Control/Brake Switch A Circuit Low
P0573    Cruise Control/Brake Switch A Circuit High
P0574    Cruise Control System - Vehicle Speed Too High
P0575    Cruise Control Input Circuit
P0576    Cruise Control Input Circuit Low
P0577    Cruise Control Input Circuit High P0578- Reserved for Cruise Control Codes
P0580    P0600 Serial Communication Link Malfunction
P0601    Internal Control Module Memory Check Sum Error
P0602    Control Module Programming Error
P0603    Internal Control Module Keep Alive Memory (KAM) Error
P0604    Internal Control Module Random Access Memory (RAM) Error
P0605    Internal Control Module Read Only Memory (ROM) Error
P0606    PCM Processor Fault
P0607    Control Module Performance
P0608    Control Module VSS Output "A" Malfunction
P0609    Control Module VSS Output "B" Malfunction
P0610    Control Module Vehicle Options Error
P0615    Starter Relay Circuit
P0616    Starter Relay Circuit Low
P0617    Starter Relay Circuit High
P0618    Alternative Fuel Control Module KAM Error
P0619    Alternative Fuel Control Module RAM/ROM Error
P0620    Generator Control Circuit Malfunction
P0621    Generator Lamp "L" Control Circuit Malfunction
P0622    Generator Field "F" Control Circuit Malfunction
P0623    Generator Lamp Control Circuit
P0624    Fuel Cap Lamp Control Circuit
P0630    VIN Not Programmed or Mismatch - ECM/PCM
P0631    VIN Not Programmed or Mismatch - TCM
P0635    Power Steering Control Circuit
P0636    Power Steering Control Circuit Low
P0637    Power Steering Control Circuit High
P0638    Throttle Actuator Control Range/Performance (Bank 1)
P0639    Throttle Actuator Control Range/Performance (Bank 2)
P0640    Intake Air Heater Control Circuit
P0645    A/C Clutch Relay Control Circuit
P0646    A/C Clutch Relay Control Circuit Low
P0647    A/C Clutch Relay Control Circuit High
P0648    Immobilizer Lamp Control Circuit ("Immobilizer" pending SAE J1930 approval)
P0649    Speed Control Lamp Control Circuit
P0650    Malfunction Indicator Lamp (MIL) Control Circuit Malfunction
P0654    Engine RPM Output Circuit Malfunction
P0655    Engine Hot Lamp Output Control Circuit Malfunction
P0656    Fuel Level Output Circuit Malfunction
P0660    Intake Manifold Tuning Valve Control Circuit (Bank 1)
P0661    Intake Manifold Tuning Valve Control Circuit Low (Bank 1)
P0662    Intake Manifold Tuning Valve Control Circuit High (Bank 1)
P0663    Intake Manifold Tuning Valve Control Circuit (Bank 2)
P0664    Intake Manifold Tuning Valve Control Circuit Low (Bank 2)
P0665    Intake Manifold Tuning Valve Control Circuit High (Bank 2)
P0700    Transmission Control System Malfunction
P0701    Transmission Control System Range/Performance
P0702    Transmission Control System Electrical
P0703    Torque Converter/Brake Switch B Circuit Malfunction
P0704    Clutch Switch Input Circuit Malfunction
P0705    Transmission Range Sensor Circuit Malfunction (PRNDL Input)
P0706    Transmission Range Sensor Circuit Range/Performance
P0707    Transmission Range Sensor Circuit Low Input
P0708    Transmission Range Sensor Circuit High Input
P0709    Transmission Range Sensor Circuit Intermittent
P0710    Transmission Fluid Temperature Sensor Circuit Malfunction
P0711    Transmission Fluid Temperature Sensor Circuit Range/ Performance
P0712    Transmission Fluid Temperature Sensor Circuit Low Input
P0713    Transmission Fluid Temperature Sensor Circuit High Input
P0714    Transmission Fluid Temperature Sensor Circuit Intermittent
P0715    Input/Turbine Speed Sensor Circuit Malfunction
P0716    Input/Turbine Speed Sensor Circuit Range/Performance
P0717    Input/Turbine Speed Sensor Circuit No Signal
P0718    Input/Turbine Speed Sensor Circuit Intermittent
P0719    Torque Converter/Brake Switch B Circuit Low
P0720    Output Speed Sensor Circuit Malfunction
P0721    Output Speed Sensor Circuit Range/Performance
P0722    Output Speed Sensor Circuit No Signal
P0723    Output Speed Sensor Circuit Intermittent
P0724    Torque Converter/Brake Switch B Circuit High
P0725    Engine Speed Input Circuit Malfunction
P0726    Engine Speed Input Circuit Range/Performance
P0727    Engine Speed Input Circuit No Signal
P0728    Engine Speed Input Circuit Intermittent
P0730    Incorrect Gear Ratio
P0731    Gear 1 Incorrect Ratio
P0732    Gear 2 Incorrect Ratio
P0733    Gear 3 Incorrect Ratio
P0734    Gear 4 Incorrect Ratio
P0735    Gear 5 Incorrect Ratio
P0736    Reverse Incorrect Ratio
P0737    TCM Engine Speed Output Circuit
P0738    TCM Engine Speed Output Circuit Low
P0739    TCM Engine Speed Output Circuit High
P0740    Torque Converter Clutch Circuit Malfunction
P0741    Torque Converter Clutch Circuit Performance or Stuck Off
P0742    Torque Converter Clutch Circuit Stuck On
P0743    Torque Converter Clutch Circuit Electrical
P0744    Torque Converter Clutch Circuit Intermittent
P0745    Pressure Control Solenoid Malfunction
P0746    Pressure Control Solenoid Performance or Stuck Off
P0747    Pressure Control Solenoid Stuck On
P0748    Pressure Control Solenoid Electrical
P0749    Pressure Control Solenoid Intermittent
P0750    Shift Solenoid A Malfunction
P0751    Shift Solenoid A Performance or Stuck Off
P0752    Shift Solenoid A Stuck On
P0753    Shift Solenoid A Electrical
P0754    Shift Solenoid A Intermittent
P0755    Shift Solenoid B Malfunction
P0756    Shift Solenoid B Performance or Stuck Off
P0757    Shift Solenoid B Stuck On
P0758    Shift Solenoid B Electrical
P0759    Shift Solenoid B Intermittent
P0760    Shift Solenoid C Malfunction
P0761    Shift Solenoid C Performance or Stuck Off
P0762    Shift Solenoid C Stuck On
P0763    Shift Solenoid C Electrical
P0764    Shift Solenoid C Intermittent
P0765    Shift Solenoid D Malfunction
P0766    Shift Solenoid D Performance or Stuck Off
P0767    Shift Solenoid D Stuck On
P0768    Shift Solenoid D Electrical
P0769    Shift Solenoid D Intermittent
P0770    Shift Solenoid E Malfunction
P0771    Shift Solenoid E Performance or Stuck Off
P0772    Shift Solenoid E Stuck On
P0773    Shift Solenoid E Electrical
P0774    Shift Solenoid E Intermittent
P0775    Pressure Control Solenoid "B"
P0776    Pressure Control Solenoid "B" Performance or Stuck Off
P0777    Pressure Control Solenoid "B" Stuck On
P0778    (Brake) Pressure Control Solenoid "B" Electrical
P0779    Pressure Control Solenoid "B" Intermittent
P0780    Shift Malfunction
P0781    1-2 Shift Malfunction
P0782    2-3 Shift Malfunction
P0783    3-4 Shift Malfunction
P0784    4-5 Shift Malfunction
P0785    Shift/Timing or Brake/Timing Solenoid Malfunction
P0786    Shift/Timing Solenoid Range/Performance
P0787    Shift/Timing Solenoid Low
P0788    Shift/Timing Solenoid High
P0789    Shift/Timing Solenoid Intermittent
P0790    Normal/Performance Switch Circuit Malfunction
P0791    Intermediate Shaft Speed Sensor Circuit
P0792    Intermediate Shaft Speed Sensor Circuit Range/Performance
P0793    Intermediate Shaft Speed Sensor Circuit No Signal
P0794    Intermediate Shaft Speed Sensor Circuit Intermittent
P0795    Pressure Control Solenoid "C"
P0796    Pressure Control Solenoid "C" Performance or Stuck Off
P0797    Pressure Control Solenoid "C" Stuck On
P0798    Pressure Control Solenoid "C" Electrical
P0799    Pressure Control Solenoid "C" Intermittent
P0801    Reverse Inhibit Control Circuit Malfunction
P0803    1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction
P0804    1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction
P0805    Clutch Position Sensor Circuit
P0806    Clutch Position Sensor Circuit Range/Performance
P0807    Clutch Position Sensor Circuit Low
P0808    Clutch Position Sensor Circuit High
P0809    Clutch Position Sensor Circuit Intermittent
P0810    Clutch Position Control Error
P0811    Excessive Clutch Slippage
P0812    Reverse Input Circuit
P0813    Reverse Output Circuit
P0814    Transmission Range Display Circuit
P0815    Upshift Switch Circuit
P0816    Downshift Switch Circuit
P0817    Starter Disable Circuit
P0818    Driveline Disconnect Switch Input Circuit
P0820    Gear Lever X-Y Position Sensor Circuit
P0821    Gear Lever X Position Circuit
P0822    Gear Lever Y Position Circuit
P0823    Gear Lever X Position Circuit Intermittent
P0824    Gear Lever Y Position Circuit Intermittent
P0825    Gear Lever Push-Pull Switch (Shift Anticipate)
P0830    Clutch Pedal Switch "A" Circuit
P0831    Clutch Pedal Switch "A" Circuit Low
P0832    Clutch Pedal Switch "A" Circuit High
P0833    Clutch Pedal Switch "B" Circuit
P0834    Clutch Pedal Switch "B" Circuit Low
P0835    Clutch Pedal Switch "B" Circuit High
P0836    Four Wheel Drive (4WD) Switch Circuit
P0837    Four Wheel Drive (4WD) Switch Circuit Range/Performance
P0838    Four Wheel Drive (4WD) Switch Circuit Low
P0839    Four Wheel Drive (4WD) Switch Circuit High
P0840    Transmission Fluid Pressure Sensor/Switch "A" Circuit
P0841    Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/ Performance
P0842    Transmission Fluid Pressure Sensor/Switch "A" Circuit Low
P0843    Transmission Fluid Pressure Sensor/Switch "A" Circuit High
P0844    Transmission Fluid Pressure Sensor/Switch "A" Circuit Intermittent
P0845    Transmission Fluid Pressure Sensor/Switch "B" Circuit
P0846    Transmission Fluid Pressure Sensor/Switch "B" Circuit Range/ Performance
P0847    Transmission Fluid Pressure Sensor/Switch "B" Circuit Low
P0848    Transmission Fluid Pressure Sensor/Switch "B" Circuit High
P0849    Transmission Fluid Pressure Sensor/Switch "B" Circuit Intermittent


See:
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Codes by Mfg. at TroubleCodes.net
Jeep Grand Cherokee Trouble Codes with comments.


last updated 6 Jun 2007