Diagnostic Fault Information
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. 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+, BCM X2 terminal 2 | B2652 00 | B2652 00 | - | - |
| I/P Dimming 12 V Reference | B1395 03, B3600 03 | B1395 03, B3600 03 | - | - |
| Instrument Panel Lamp Dimming Control | B2652 00 | 2 | 3 | - |
| LED Backlighting Dimming Control | B2610 00 | 4 | 5 | - |
| Instrument Panel Lamp Dimmer Switch Signal | B3600 03 | B3600 03 | 1 | - |
| Ground - Headlamp Switch | - | 1 | - | - |
| 1. Headlamps And Dimmer Switch Malfunction 2. Incandescent Dimming Lamps Are Inoperative 3. Incandescent Dimming Lamps Are Always On 4. Led Backlighting Is Inoperative 5. Led Backlighting Is Always On |
||||