Engine Controls - Self-Diagnostics - Wrangler
- Introduction
- Self-Diagnostic System
- Fuel System Pressure Release
- Powertrain Control Module Location
- Programming
- Scan Tool Error Messages
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0107: Map Sensor Voltage Too Low DTC P1296: No 5 Volts To Map Sensor
- DTC P0108: Map Sensor Voltage Too High
- DTC P0112: Intake Air Temp Sensor Voltage Low
- DTC P0113: Intake Air Temperature Sensor Voltage High
- DTC P0117: ECT Sensor Voltage Too Low
- DTC P0118: ECT Sensor Voltage Too High
- DTC P0121: TPS Voltage Does Not Agree With Map
- DTC P0122: Throttle Position Sensor Voltage Low
- DTC P0123: Throttle Position Sensor Voltage High
- DTC P0125: Closed Loop Temp Not Reached
- DTC P0130: 1/1 O2 Sensor Heater Circuit Malfunction (4.0L With CALIF. Emissions)
- DTC P0131: 1/1 O2S Voltage Shorted To Ground
- DTC P0132: 1/1 O2 Sensor Shorted To Voltage
- DTC P0133: 1/1 O2 Sensor Slow Response
- DTC P0135: 1/1 O2 Sensor Heater Failure
- DTC P0136: 1/2 O2 Sensor Heater Circuit Malfunction (4.0L With CALIF. Emissions)
- DTC P0137: 1/2 O2S Volts Shorted To Ground
- DTC P0138: 1/2 O2 Sensor Shorted To Voltage
- DTC P0139: 1/2 O2 Sensor Slow Response
- DTC P0141: 1/2 O2 Sensor Heater Failure
- DTC P0151: 2/1 O2 Sensor Shorted To Ground (4.0L With CALIF. Emissions)
- DTC P0152: 2/1 O2 Sensor Shorted To Voltage (4.0L With CALIF. Emissions)
- DTC P0153: 2/1 O2 Sensor Slow Response (4.0L With CALIF. Emissions)
- DTC P0155: 2/1 O2 Sensor Heater Failure (4.0L With CALIF. Emissions)
- DTC P0157: 2/2 O2 Sensor Shorted To Ground (4.0L With CALIF. Emissions)
- DTC P0158: 2/2 O2 Sensor Shorted To Voltage (4.0L With CALIF. Emissions)
- DTC P0159: 2/2 O2 Sensor Slow Response (4.0L With CALIF. Emissions)
- DTC P0161: 2/2 O2 Sensor Heater Malfunction (4.0L With CALIF. Emissions)
- DTC P0171: 1/1 Fuel System Lean
- DTC P0172: 1/1 Fuel System Rich
- DTC P0174: 2/1 Fuel System Lean (4.0L With CALIF. Emissions)
- DTC P0175: 2/1 Fuel System Rich (4.0L With CALIF. Emissions)
- DTC P0201: Injector #1 Control Circuit
- DTC P0202: Injector #2 Control Circuit
- DTC P0203: Injector #3 Control Circuit
- DTC P0204: Injector #4 Control Circuit
- DTC P0205: Injector #5 Control Circuit (4.0L)
- DTC P0206: Injector #6 Control Circuit (4.0L)
- DTC P0300: Multiple Cylinder Misfire
- DTC P0301-P0306: Cylinder Misfire
- DTC P0320: No Crank Reference Signal At Pcm
- DTC P0340: No Cam Signal At Pcm
- DTC P0351: Ignition Coil #1 Primary Circuit (2.5L)
- DTC P0351: Ignition Coil #1 Primary Circuit (4.0L)
- DTC P0352: Ignition Coil #2 Primary Circuit (4.0L)
- DTC P0353: Ignition Coil #3 Primary Circuit (4.0L)
- DTC P0420: 1/1 Catalytic Converter Efficiency
- DTC P0432: 2/1 Catalytic Converter Efficiency (4.0L With CALIF. Emissions)
- DTC P0441: EVAP Purge Flow Monitor Failure
- DTC P0442: EVAP Leak Monitor Medium (.040") Leak Detected DTC P0455: EVAP Leak Monitor Large Leak Detected DTC P0456: EVAP Leak Monitor Small (.020") Leak Detected
- DTC P0443: EVAP Purge Solenoid Circuit
- DTC P0460: Fuel Level Unit No Change Over Miles
- DTC P0462: Fuel Level Sending Unit Volts Too Low
- DTC P0463: Fuel Level Sending Unit Volts Too High
- DTC P0500: No Vehicle Speed Sensor Signal
- DTC P0505: Idle Air Control Motor Circuits
- DTC P0522: Oil Pressure Sensor Volts Low
- DTC P0523: Oil Pressure Sensor Volts High
- DTC P0551: Power Steering Switch Failure (2.5L)
- DTC P0600: Pcm Failure SPI Communications
- DTC P0601: Internal Controller Failure
- DTC P0645: A/C Clutch Relay Circuit
- DTC P1195: Slow 1/1 O2S During Catalyst Monitor
- DTC P1196: 2/1 O2 Sensor Slow During Catalyst Monitor (4.0L With CALIF. Emissions)
- DTC P1197: Slow 1/2 O2S During Catalyst Monitor
- DTC P1281: Engine Is Cold Too Long
- DTC P1282: Fuel Pump Relay Control Circuit
- DTC P1294: Target Idle Not Reached
- DTC P1297: No Change In Map From Start To Run
- DTC P1388: Auto Shutdown Relay Control Circuit
- DTC P1389: No ASD Relay Output Voltage At Pcm
- DTC P1391: Intermittent Loss Of CMP Or CKP
- DTC P1398: Misfire Adaptive Numerator At Limit
- DTC P1486: EVAP Leak Monitor Pinched Hose Found
- DTC P1492: Ambient/Bat Temperature Sensor Voltage Too High DTC P1493: Ambient/Bat Temperature Sensor Voltage Too Low
- DTC P1494: Leak Detection Pump SW Or Mechanical Fault
- DTC P1495: Leak Detection Pump Solenoid Circuit
- DTC P1687: No Cluster Bus Message
- DTC P1696: Pcm Failure EEPROM Write Denied
- DTC P1899: Park/Neutral Switch Stuck In Park Or In Gear (A/T)
- Verification Tests