Diagnostic Fault Information
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. 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 Performance |
|---|---|---|---|---|
| B+ | 1 | 1 | - | - |
| Left Side Step 10-Volt Reference | B051C 02 | 1 | B051C 01 | - |
| Right Side Step 10-Volt Reference | B051D 02 | 1 | B051D 01 | - |
| Left Position Sensor Signal | B051C 02 | 1 | 1 | - |
| Right Position Sensor Signal | B051D 02 | 1 | 1 | - |
| Disable Switch Signal | 1 | 2 | - | - |
| Left Actuator Extend Control | 1 | B1000 54 | 1 | - |
| Left Actuator Retract Control | 1 | B1000 54 | 1 | - |
| Right Actuator Extend Control | 1 | B1000 54 | 1 | - |
| Right Actuator Retract Control | 1 | B1000 54 | 1 | - |
| Left Position Sensor Low Reference | 1 | 1 | 1 | - |
| Right Position Sensor Low Reference | 1 | 1 | 1 | - |
| Ground | - | 1 | - | - |
| 1. Assist Steps Inoperative 2. Disable Switch Inoperative |
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