P0602
P0602-CONTROL MODULE PROGRAMMING ERROR/NOT PROGRAMMEDWhen Monitored:
Check for generic software is made at power-up.
Set Condition
If generic software is found, the MIL will light immediately. This DTC is designed to signal the technician that the controller still has generic software installed.
Possible Causes
- PCM - PROGRAMMING ERROR
Always perform the 40/41TE Pre-Diagnostic Troubleshooting procedure before proceeding.
Theory of Operation
The controller is programmed during manufacturing 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 powerup. If generic software is found, the MIL will light immediately and the MIL will stay on even if the fault is cleared, until the proper software is installed. Note: Transmission will be placed in limp-in mode.
Diagnostic Test
1. CONTROL MODULE PROGRAMMING ERROR
NOTE: 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 - VER 1 Transmission Verification Test