40/41TE Automatic Transaxle (NGC)

P0602-CONTROL MODULE PROGRAMMING ERROR/NOT PROGRAMMED

For a complete wiring diagram Consult Diagrams/Electrical.

Theory of Operation

The controller is programmed during manufacturing process with generic software to facilitate testing. This software does not have the proper calibrations to control a transmission in a vehicle. The check for generic software is made at power-up (ignition on). If generic software is detected, the MIL will illuminate, transmission will be placed in limp-in, and will stay in limp-in even if the fault is cleared or until the proper software is installed.

- When Monitored:
Check for generic software is made at power-up or ignition on.

- Set Condition:
If generic software is found, the MIL will light immediately. This DTC is designed to notify the technician that the controller has generic software installed.





Always perform the 40/41TE Pre-Diagnostic Troubleshooting procedure before proceeding. Testing and Inspection

Diagnostic Test

1. CONTROL MODULE PROGRAMMING ERROR

NOTE: The controller is programmed with generic software and will not allow the correct vehicle Powertrain management.

Record the controller part number.
Update the controller with the correct software.
Verify that the controller updated successfully.

Test Complete

- Perform 40/41TE VERIFICATION TEST 40/41TE Transmission Verification Test