DTCM Signal Plausibility Failure
Table of contents
C2502 RAM Possible Causes
- Faulty Anti-Lock Brake System (ABS) Module
- Faulty Electric Power Steering (EPS) Module
- Faulty Powertrain Control Module (PCM)
- Faulty Transmission Control Module (TCM)
How do I fix code C2502 RAM?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the C2502 RAM code
The cost of diagnosing the C2502 RAM code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C2502 RAM Description
Any time the key is on and the engine has been running for at least 4 seconds the Drivetrain Control Module (DTCM) continuously runs a diagnostic check on the Transmission Control Module (TCM), Anti-lock Brake System (ABS) Module, Electric Power Steering (EPS) Module and the Powertrain Control Module (PCM) to ensure that the Modules can honor any Terrain Selector Switch request. If the DTCM receives a message from one of these other modules indicating that they have had a failure, the DTCM forces the terrain selector switch into AUTO mode and will disable the terrain selection option to the customer. This DTC is set in the DTCM to inform the Technician that the AWD system is working properly but the driving mode can not be selected because another system in the vehicle has failed.