Powertrain fault codes
14821 Powertrain 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.
- P1289Mercury · PowertrainCylinder Head Temperature Sensor Signal Greater Than Self-Test Range
- P1289Other · PowertrainCylinder Head Temp Sensor High Input
- P1289Plymouth · PowertrainManifold Tune Valve Solenoid Circuit Open Or Shorted
- P1289Pontiac · PowertrainManifold Tune Valve Solenoid Circuit Open Or Shorted
- P1289Volkswagen · PowertrainTurbocharge Bypass Valve Short To Ground
- P1290Dodge · PowertrainCNG Fuel Pressure Too High
- P1290Ford · PowertrainCylinder Head Temperature Sensor Signal Less Than Self-Test Range
- P1290Jeep · PowertrainCNG Fuel Pressure Too High
- P1290Lincoln · PowertrainCylinder Head Temperature Sensor Signal Less Than Self-Test Range
- P1290Mercury · PowertrainCylinder Head Temperature Sensor Signal Less Than Self-Test Range
- P1290Other · PowertrainCylinder Head Temp Sensor Low Input
- P1290Plymouth · PowertrainCNG Fuel Pressure Too High
- P1290Pontiac · PowertrainCNG Fuel Pressure Too High
- P1291Dodge · PowertrainNo Temp Rise Seen From Fuel Heaters
- P1291Ford · PowertrainInjector High Side Short To GND Or VBATT Bank 1
- P1291Jeep · PowertrainNo Temp Rise Seen From Fuel Heaters
- P1291Lincoln · PowertrainInjector High Side Short To GND Or VBATT Bank 1
- P1291Mercury · PowertrainInjector High Side Short To GND Or VBATT Bank 1
- P1291Other · PowertrainInjector High Side Short To GND Or VBATT - Bank 1
- P1291Plymouth · PowertrainNo Temp Rise Seen From Fuel Heaters
- P1291Pontiac · PowertrainNo Temp Rise Seen From Fuel Heaters
- P1292Dodge · PowertrainCNG Pressure Sensor Voltage Too High
- P1292Ford · PowertrainInjector High Side Short To GND Or VBATT Bank 2
- P1292Jeep · PowertrainCNG Pressure Sensor Voltage Too High
- P1292Lincoln · PowertrainInjector High Side Short To GND Or VBATT Bank 2
- P1292Mercury · PowertrainInjector High Side Short To GND Or VBATT Bank 2
- P1292Other · PowertrainInjector High Side Short To GND Or VBATT - Bank 2
- P1292Plymouth · PowertrainCNG Pressure Sensor Voltage Too High
- P1292Pontiac · PowertrainCNG Pressure Sensor Voltage Too High
- P1293Dodge · PowertrainCNG Pressure Sensor Voltage Too Low