Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Alarm Module: Testing and Inspection






STANDARD PROCEDURE - PROGRAMMING THE SKREEM/WCM USING THE SCAN TOOL

CAUTION: Read all notes and cautions for programming procedures.

1. Connect a battery charger to the vehicle.

2. Connect the scan tool.

CAUTION: If the ECM/PCM and SKREEM/WCM are replaced at the same time, the ECM/PCM MUST be programmed before the SKREEM/WCM.

3. Select "ECU View".

4. Select "WCM Wireless Control Module".

5. Select "Miscellaneous Functions".

6. Select WCM replaced.

7. Enter the PIN when prompted.

8. Verify the correct information.