Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK CONNECTION BETWEEN TCM AND PCM-2
1. Check for loose, damaged or corroded connections on the TCM or on the PCM-2.
  Are there any loose or damaged connections?
  
  Yes
  - Repair the wiring connections as necessary.
  No
  - Go To 2
CHECK CAN LINE WIRING BETWEEN TCM AND PCM-2
1. Check the wiring for an open circuit or high resistance of the CAN line between the TCM and the PCM-2.
  Is there a high resistance or open condition in the wiring?
  
  Yes
  - Repair the open circuit or high resistance in the wiring.
  No
  - Go To 3
CHECK CAN LINE WIRING BETWEEN TCM AND PCM-2
1. Check the wiring for a short circuit in the CAN line between the TCM and the PCM-2.
  Is there a short circuit in the wiring?
  
  Yes
  - Repair the short circuit in the wiring.
  No
  - Go To 4
CHECK TCM OPERATION
1. Check that the TCM is working properly.
  Is the TCM operating properly?
  
  Yes
  - Go To 5
  No
  - Replace the TCM.
CHECK FUNCTIONING OF THE AUTOMATIC TRANSMISSION
1. Check that the automatic transmission is working properly.
  Automatic transmission not operating correctly
  
  Yes
  - End of diagnosis.
  No
  - Replace the automatic transmission.