P0864 Volkswagen Code - TCM Communication Circuit Range/Performance
Quick Answer
The Engine Control Module (ECM) monitors the Transmission Control Module (TCM). Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0864 Volkswagen indicates TCM Communication Circuit Range/Performance.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0864 Volkswagen Description
What are the Possible Causes of the DTC P0864 Volkswagen?
- 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 to Fix the DTC P0864 Volkswagen?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0864 Volkswagen code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0864 Volkswagen code?
Need more information on how to fix the P0864 Volkswagen code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0864 Volkswagen code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0864 Volkswagen Code
No Frequently Asked Questions about P0864 Volkswagen Code found.
Discuss the causes and fixes for P0864 Volkswagen OBDII Code
-
My electrician told me to get a new key and program it but idk if that will fix it and i dont want to waste money what do you guys think?
-
Besides the code what other symptom do you have? what model and year is your vehicle?
-
I have the same code, but the tcm seems to work fine. I tries start my car, but it doesn't start.
It's a 2006 Volkswagen passat 2.0t. If you got more information then that would be great. -
I have a 08 Passat and its throwing same code ...
the car drives but it sputters and cant go higher than 200 rpm -
First of all my car is a 2007 Jetta 2.5l 5cyl. This car had a first problem related to the cylinder switch lock stuck so hard that key was not possible to take off. Having this condition at a few miles appears a noise that looked as if it was a grinded problem on the transmission, Not enough the car stalled and what I did was to repair the cylinder switch and change le cv axles. In this condition I turned on the car to move it to another place but I realized that the car doesn't move. It was as if the were not transmission of power to the cv axles. In this condition when the technician connected the computer to the car the code that appears was P0864.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
