Powertrain Control Module (PCM) - 66RFE

P0602-CONTROL MODULE PROGRAMMING ERROR/NOT PROGRAMMED

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The controller is programmed during manufacturing with generic software to facilitate testing. However, generic software does not have the proper calibrations to control a transmission in a vehicle. Generic software checked at power-up. If generic software is found the Malfunction Indicator Lamp (MIL) will light immediately and the MIL will stay on if the fault is cleared until the proper software is installed. Note: Transmission will be placed in limp-in mode.

- When Monitored:
Generic software is checked at power-up

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





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
CONTROL MODULE PROGRAMMING ERROR

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

1. With the scan tool.
2. Record the vehicles controller part number.
3. Select Use Controller Part Number under the Flash Tab.
4. Flash the controller with the correct software.

Verify the controller flashed successfully.

Test Complete

- Perform the 66RFE TRANSMISSION VERIFICATION TEST. 66RFE Transmission Verification Test