How serious is the code?
A P0862 diagnostic code is quite serious, as it means the computer cannot communicate with the necessary sensors and control modules. Needless to say, this will affect driving and, eventually, your vehicle’s safety.
Symptoms
Symptoms of a P0862 include:
- Anti-lock brake system warning light
- Hard shifting
- Transmission won’t engage in drive or reverse
- Limp mode
Causes
- Damage to wiring and/or connectors
- Faulty manual lever position sensor
- Damaged or broken shift assembly
How to diagnose the code?
When trying to determine what’s causing a P0862 OBDII trouble code, the wiring and connectors on the transmission wiring harness are usually checked first. If nothing appears wrong, then the manual lever position sensor, and possibly the shift lever, should be considered.
What repairs will fix P0862?
- Repair or replace damaged wiring on the transmission wiring harness
- Replace or repair broken/corroded connectors
- Replace the transmission control module