TrailBlazer 2WD L6-4.2L VIN S (2003)
1. Install the PCM mounting studs to the intake manifold, if removed.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the studs to 6 N.m (53 lb in).
2. Install the PCM (2) to the intake manifold.
3. Install the PCM mounting nuts and bolts (4).
Tighten
Tighten the nuts and bolts to 10 N.m (88 lb in).
4. Install the PCM harness connectors (3) to the PCM body.
5. Tighten the PCM harness connector retaining bolts (1).
Tighten
Tighten the bolts to 8 N.m (71 lb in).
6. If a new PCM is being installed, the PCM must be programmed. Refer to Service Programming System (SPS) (Remote Procedure)Service
Programming System (SPS) (Pass-Thru Procedure)Service Programming System (SPS) (Off Board Remote Procedure)Service Programming
System (SPS) (Off Board Pass-Thru Procedure) in Programming. See: Testing and Inspection/Programming and Relearning
