Component Testing

Disable the inflatable restraint steering wheel module when performing this diagnostic. Refer to SIR Disabling and Enabling .

1. Ignition OFF, remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
2. Ignition OFF, disconnect the harness connector C4 at the multifunction switch.
3. Measure the resistance between terminals 1 and 5 at the cruise control switch side of the connector. Individually activate and hold each cruise control function switch and compare the resistance reading to the values for the On, Off, - SET, and + RES switches.
   • If any of the resistance measurements for the On, Off, - SET, and + RES switches are not within the listed resistance values, replace the multifunction switch.