Blazer 2WD V6-4.3L VIN X (2004)
3. Remove the PCM from the PCM mounting bracket.
4. Disconnect the PCM electrical connectors.
Installation Procedure
1. Remove the replacement PCM from the packaging.
2. Check the service number in order to make sure the service number is the same number as the defective PCM.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Connect the PCM electrical connectors.
Tighten
Tighten the PCM electrical connectors screws to 8 N.m (71 lb in).
