We had our driver window broken into, and ever since then we have had issues with the following: reading lights from ceiling console not coming on ever, intermittent door not closed on driver passenger door, sun shade mirror lights don’t work, ride leveling system does not seem to level the vehicle, and the disappearing running boards function intermittently.
I have removed the door panel and no apparent breaks or damage to the wiring harnesses in the door. I did notice the number 4 pin on the 8 wire connectors was loose. I secured it and the dome lights in the 2nd and 3rd row seats started working.
Can’t find 2020 wiring diagrams, even on GMC unfitted, so kind of stuck. Feel it’s a relay, or the door actuator, but need to be able to start tracing…. Any ideas?
I have removed the door panel and no apparent breaks or damage to the wiring harnesses in the door. I did notice the number 4 pin on the 8 wire connectors was loose. I secured it and the dome lights in the 2nd and 3rd row seats started working.
Can’t find 2020 wiring diagrams, even on GMC unfitted, so kind of stuck. Feel it’s a relay, or the door actuator, but need to be able to start tracing…. Any ideas?
