P0633

P0633-SKIM SECRET KEY NOT STORED IN PCM

For a complete wiring diagram refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Ignition on.

- Set Condition:
The SKIM Key information has not been programmed into the PCM. One Trip Fault. Three good trips to turn off the MIL.





WARNING: On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
PROGRAMMING SKIM KEY INTO THE PCM
1. Ignition on, engine not running.
2. With a scan tool, erase DTCs.
3. Using the scan tool, program the Secret Key information into the PCM using the PCM replaced function under the WCM menu.
4. Start the engine.

NOTE: If the engine will not start, crank the engine over for 15 seconds. Crank at least 2 times with the ignition switch returning to the off position each time.

5. Allow the engine to reach normal operating temperature.
6. With the scan tool, select View DTCs.

Does the DTC reset?

Yes

- Replace and program the Powertrain Control Module.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.

No

- The SKIM KEY information has been successfully programmed into the PCM. Test is complete.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.