OnStar Description and Operation (UE1 with IOB/IO6)
This OnStar system consists of the following components:
Telematics communication interface control module
OnStar three button assembly
Micr
DTC B0997
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
appro
Tire Pressure Indicator Sensor Replacement
Removal Procedure
1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the
Vehicle.
2. Remove the tire and wheel assembly.
3. Dismount the tire from the rim.
4.
NOTE: Never fit the tire pressure indicator sensor on unapproved wheel
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Camshaft Actuator System Description
Circuit/System Description
The camshaft position actuator solenoid valve - Intake and camshaft position
actuator solenoid valve -
exhaust system enables the engine control module (ECM) to change camshaft timing
while the engine is
running. The camshaft position