P0855 Possible Causes
- Faulty drive switch
- Drive switch harness is open or short-circuited
- Poor electrical connection in the control switch circuit
What does it mean?
First diagnose code P0855
Check the “possible causes” listed above. Visually inspect the cable harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P0855 Possible Symptoms
Check engine light on (or service engine soon warning light)
P0855 Description
The Transmission Control Module (TCM) monitors the signal from the drive switch. The TCM sets the OBDII code when the control switch does not meet factory specifications.
OBDII Code P0855 – Drive Switch Input Circuit High – AutoCodes.com