OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
Free on OBD DashX
Looking for real-world repair data?
OBD DashX shows which problems come with each code, how often they show up in other vehicles, and how to fix them — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
Fault codes
P0848
Transmission Fluid Pressure Sensor/Switch B Circuit High
Generic
Transmission System
High severity
P0865
Traction Control Module (TCM) Communication Circuit Low
Generic
Transmission System
High severity
P0873
Transmission Fluid Pressure Sensor/Switch C circuit High
Generic
Transmission System
High severity
P0876
Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance
Generic
Transmission System
High severity
P0879
Transmission Fluid Pressure Sensor/Switch D circuit Intermittent
Generic
Transmission System
High severity
P0882
Traction Control Module (TCM) Power Input Signal Low
Generic
Transmission System
High severity
P0885
Traction Control Module (TCM) Power Relay Control Circuit/Open
Generic
Transmission System
High severity
P0888
Traction Control Module (TCM) Power Relay Always Off
Generic
Transmission System
High severity
P0891
Traction Control Module (TCM) Power Relay Sense Circuit High
Generic
Transmission System
High severity
Scan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.