No communication with TCM
Read the instructions below then start the fault diagnostic procedure.
Symptom: No communication with TCM
No communication with TCM |
Fault symptoms
No communication with TCMConditions
The following conditions are applicable:• |
Ignition switch in ON position
|
Diagnostic help
First, check the fuses for the TCM control module and that the data link connector pins for communication are in place.Then, check whether the TCM is awake and allowing diagnostics communication. If not, check to see if the diagnostic tool works in another car.
If no fault is found, rectify the communications lead between TCM and the data link connector.