Turn Signal/Multifunction Switch Test
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 S78 turn signal/multifunction switch.
- Test for Infinite resistance between the terminals listed below with the switch in the open position.
- Signal terminal 2 and ground terminal 3
- Signal terminal 4 and ground terminal 3
- If not the specified value, replace the S78 turn signal/multifunction switch.
- Test for less than 2 Ω between the signal terminal 2 and the ground terminal 3 with the switch in the high beam position.
- If greater than the specified value, replace the S78 turn signal/multifunction switch.
- Test for less than 2 Ω between the signal terminal 4 and the ground terminal 3 while holding the switch in the flash to pass position.
- If greater than the specified value, replace the S78 turn signal/multifunction switch.