Component Testing
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
Ignition Mode Switch Test
- Ignition OFF/Vehicle OFF, disconnect the harness connector at the S38 Ignition Mode Switch.
- Test for 4.5-5.5 k Ω between the terminals listed below with the S38 Ignition Mode Switch released:
- Signal terminal 6 and ground terminal 4
- Signal terminal 3 and low reference terminal 7
- If not between 4.5-5.5 kΩ
Replace the S38 Ignition Mode Switch.
- If between 4.5-5.5 kΩ
- Test for 1-1.5 k Ω between the terminals listed below with the S38 Ignition Mode Switch pressed :
- Signal terminal 6 and ground terminal 4
- Signal terminal 3 and low reference terminal 7
- If not between 1-1.5 kΩ
Replace the S38 Ignition Mode Switch.
- If between 1-1.5 kΩ
- All OK.