Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Pontiac >> 2007 >> Grand Prix Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 169 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P0608 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, install a scan tool and raise the vehicle drive wheels. Refer to Lifting and Jacking the Vehicle .
  2. Engine ON, transmission in Drive, verify that DTC P0502 or P0503 are not set as current.
  3. Engine ON, transmission in Drive, verify the scan tool Vehicle Speed Sensor parameter reads any vehicle speed.
    • If the scan tool parameter does not read any vehicle speed, replace the PCM.
scientia non olet · About Mike's Workshop Manuals