Jeep fault codes
97 Jeep OBD-II fault codes: what each one means, and how to track it down.
How to read a code
- P
- SystemPowertrain
- 0
- Defined bySAE, the same on every car
- 4
- AreaAuxiliary emission controls
- 20
- FaultThe specific fault in that area
Read the code
Note every stored and pending code your scanner shows, such as P0420.
Find it
Search by code or by words. For a manufacturer code (P1, B1, C1, U1) pick your make: its meaning differs by make.
Open the code
Its page explains the symptoms, likely causes, the checks to run and the fixes.
- P1388Jeep · PowertrainAuto Shutdown (ASD) Relay Control Circuit Open Or Shorted
- P1389Jeep · PowertrainNo Auto Shutdown (ASD) Relay Output Voltage At PCM
- P1390Jeep · PowertrainTiming Belt Skipped One Tooth Or More
- P1391Jeep · PowertrainIntermittent Loss of CMP Or CKP
- P1398Jeep · PowertrainPCM Is Unable To Learn The Crankshaft Position Sensor's Signal
- P1399Jeep · PowertrainWait To Start Lamp Circuit Open Or Shorted
- P1403Jeep · PowertrainLoss Of 5 Volts To EGR Sensor
- P1475Jeep · PowertrainAuxiliary 5 Volt Output Too High
- P1476Jeep · PowertrainToo Little Secondary Air
- P1477Jeep · PowertrainToo Much Secondary Air
- P1478Jeep · PowertrainBattery Temp Sensor Voltage Out Of Limit
- P1479Jeep · PowertrainTransmission Fan Relay Circuit Open Or Shorted
- P1480Jeep · PowertrainPCV Solenoid Valve Open Or Shorted
- P1481Jeep · PowertrainEATX RPM Pulse Generator Signal For Misfire Detection
- P1482Jeep · PowertrainCatalyst Temperature Sensor Circuit Shorted Low
- P1483Jeep · PowertrainCatalyst Temperature Sensor Circuit Shorted High
- P1484Jeep · PowertrainCatalytic Converter Overheat Detected
- P1485Jeep · PowertrainAir Injection Solenoid Circuit Open Or Shorted
- P1486Jeep · PowertrainEvap Leak Monitor Pinched Hose
- P1487Jeep · PowertrainHi Speed Rad Fan CTRL Relay Circuit Open Or Shorted
- P1488Jeep · PowertrainAuxiliary 5 Volt Supply Output Too Low
- P1489Jeep · PowertrainHigh Speed Fan CTRL Relay Circuit Open Or Shorted
- P1490Jeep · PowertrainLow Speed Fan CTRL Relay Circuit Open Or Shorted
- P1491Jeep · PowertrainRadiator Fan Control Relay Circuit Open Or Shorted
- P1492Jeep · PowertrainBattery Temperature Sensor Voltage Too High
- P1493Jeep · PowertrainBattery Temperature Sensor Voltage Too Low
- P1494Jeep · PowertrainLeak Detection Pump Switch Or Mechanical Fault
- P1495Jeep · PowertrainLeak Detection Pump Solenoid Circuit Open Or Shorted
- P1496Jeep · Powertrain5 Volt Supply Output Too Low
- P1498Jeep · PowertrainHigh Speed Rad Fan Ground CTRL Rly Circuit
