B1A27

B1A27-SKREEM PROGRAMMING PERFORMANCE

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

- When Monitored:
With the ignition on.





VERIFY THAT THE DTC IS ACTIVE
1. Turn the ignition on.

NOTE: Before continuing, review and check for the following:
- Review the repair history of the vehicle.
- Make sure that the vehicle has the correct PCM and WCM installed by verifying the part numbers.
- Using the scan tool, ensure that the PCM and WCM are programmed correctly. Compare the PCM VIN to the WCM VIN and make sure the two VINs match.

2. Using the scan tool, clear DTCs.
3. Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle.
4. Using the scan tool, read DTCs.

Does the DTC reset?

Yes

- Reprogram the Wireless Control Module and retest for this DTC. If this DTC resets, replace and program the Wireless Control Module (WCM).
- Perform the WCM VERIFICATION TEST. Wireless Control Module (WCM) Verification Test.

No

- The DTC is not active at this time. Test complete.