Tiptronic

Fault Code 1312/P0864/P0865

CAN drive [TCM Communication Circuit Low / TCM Communication Circuit Range/Performance]

Diagnostic conditions
- Ignition on
- Internal Tiptronic control module function test

Possible cause of fault
Communication problem with all control modules via CAN drive.
- CAN drive is faulty
- No signal/communication

Affected pins
Tiptronic control module plug:
- Pin 34 CAN drive (low)
- Pin 46 CAN drive (high)

Diagnosis/troubleshooting G 0210

NOTE: If there is no incoming signal/message via the CAN drive using several control modules, the CAN drive must be checked for open or short circuits. Refer to Checking instructions/CAN data bus.

Work Instruction 1: