Component Testing
WARNING: This page is about a different car, the 2007 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Refer to SIR Caution
.
Disable the inflatable restraint steering wheel module when performing this diagnostic. Refer to SIR Disabling and Enabling .
IMPORTANT:
The cruise control switch must be ON in order to properly measure the resistance of the - SET and the + RES switches.
- Ignition OFF, remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
- Disconnect the harness connector C4 at the turn signal/multifunction switch.
- Cruise control switch ON, 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 on the schematic 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 turn signal/multifunction switch.
Cruise Control Inoperative/Malfunctioning
| Function Switch | Minimum Resistance Value | Maximum Resistance Value |
|---|---|---|
| Off | O.L. | O.L. |
| On | 6.5k Ohms | 7.1k Ohms |
| - SET | 1.4k Ohms | 1.6k Ohms |
| + RES | 3.7k Ohms | 3.9k Ohms |