Envoy 4WD V8-5.3L VIN P (2004)
Steps 28-29
The numbers below refer to the step numbers on the diagnostic table.
8. This step tests the center high mounted stop lamp (CHMSL) supply voltage/stop lamp supply voltage circuit for an open or for a high resistance
between the stop lamp switch and the throttle actuator control (TAC) module.
9. This step tests the cruise control set/coast switch signal circuit for an open or for a high resistance.
10. This step tests the cruise control resume/accel switch signal circuit for an open or for a high resistance.
11. This step tests the ignition 3 voltage circuit for an open, for a show to ground, or for a high resistance.
29. DTCs will set in the powertrain control module (PCM) when you perform this table.
