Circuit/System Testing
WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left.
- Test for less than 10 Ω between the signal circuit terminal 2 and ground.
- If greater than the specified value, test the signal circuits for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
- Ignition ON, test for greater than 11 V between the 12 V reference circuit terminal 1 and ground.
- If less than the specified value, test the 12 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
- Ignition OFF, disconnect the X3 harness connector at the K9 Body Control Module.
- Test for infinite resistance between the signal circuit terminal 9 X3 and ground.
- If less than the specified value, test the signal circuit for a short to ground.
- If all circuits test normal, test or replace the S70L Steering Wheel Controls Switch - Left.