TCM Communication Circuit
Table of contents
P0863 AUDI Possible Causes
- Faulty Transmission Control Module (TCM)
- Transmission Control Module harness is open or shorted
- Transmission Control Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How do I fix code P0863 AUDI?
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 P0863 AUDI code
The cost of diagnosing the P0863 AUDI 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
- Engine Light ON (or Service Engine Soon Warning Light)
P0863 AUDI Description
This fault code is stored when a malfunction is detected with the Transmission Control Module (TCM) communication circuit. Electrical connections and wiring between the TCM and Engine Control Module (ECM) should be tested for circuit continuity.