Cruise Control - Inoperative/Malfunctioning

CRUISE CONTROL INOPERATIVE/MALFUNCTIONING

DIAGNOSTIC AIDS

CAUTION: Refer to SIR Caution in Service Precautions.

Disable the inflatable restraint steering wheel module when performing this diagnostic table. Refer to SIR Disabling and Enabling Zone 3 in Restraint Systems.
- Ensure that the following cruise control switches are not stuck in the engaged position:
- On/off switch
- Set/coast switch
- Resume/accel switch
- With a scan tool, observe the associated cruise control switch parameter in the Powertrain Cruise Control Data list, while rotating the steering wheel to both steering stops and separately activating each cruise control switch. This will help eliminate the possibility of an internally shorted inflatable restraint steering wheel module coil.
- Electromagnetic interface (EMI) on the speed sensor signal circuit may cause erratic cruise control operation.
- For an intermittent condition, refer to Diagnostic Aids for Circuit Testing and Wiring Repair procedures.

TEST

Steps 1-7:

Steps 8-15:

Steps 16-17: