Diagnostic Fault Information
WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Invalid |
|---|---|---|---|---|
| Run/Crank Ignition 1 Voltage | Trans Ign 1 fuse, underhood fuse block - Open | C0364 04 if set when in 2WD High or C0379 08 if set when in 4WD High |
- | C0379 58 |
| Four Wheel Drive Wheel Lock Indicator | C0379 08 or C0379 58 | C0364 04, C0379 08, or C0379 58 | C0379 58 | C0379 58 |
| Front Axle Actuator Control | C0364 02 | C0364 04 if set when in 2WD High or C0379 08 if set when in 4WD High |
C0364 01 | C0379 58 |
| Ground | - | C0364 04 if set when in 2WD High or C0379 08 if set when in 4WD High |
- | C0379 58 |