Front Windows stopped. BCU??
#21
Update on this. I finally got the window issue straightened out. I'm not sure what I did, but they now work. Perhaps pulling the under dash fuse panel and reinstalling might have fixed it. I had read on another post where windshield water leaks could cause corrosion. I figured I would give it a look see. No corrosion at all so I reinstalled that along with the original BCM and the suddenly the windows are back on line. With no identifiable fault, I suspect I will deal with this again. fingers crossed.
So.... I moved on to the door lock issue. The 25 amp fuse in the under dash panel will blow when locking/unlocking the doors with the key remote or with the central locking switch. In efforts to isolate this fault, I removed all 5 door panels and unplugged each door lock actuator. I replaced the fuse and activated the locks using both methods with no short to ground.
Next, I refitted the power plugs on the actuators, one at a time, and cycled the remote and switch. No short. So, again I thought loose plug or maybe come corrosion. I even fitted a 15 amp fuse just to see if a actuator motor might be pulling to many amps. The system cycled multiple times with no issue.
So, I refitted all the door panels and tried the system again. All door locked, but when trying to unlock, the fuse blew. Same scenario with a 20, 25, 30, and 40 amp fuse. Somewhere in the system I have a hard short to ground on the unlock side.
Any ideas where this gremlin will take me?
So.... I moved on to the door lock issue. The 25 amp fuse in the under dash panel will blow when locking/unlocking the doors with the key remote or with the central locking switch. In efforts to isolate this fault, I removed all 5 door panels and unplugged each door lock actuator. I replaced the fuse and activated the locks using both methods with no short to ground.
Next, I refitted the power plugs on the actuators, one at a time, and cycled the remote and switch. No short. So, again I thought loose plug or maybe come corrosion. I even fitted a 15 amp fuse just to see if a actuator motor might be pulling to many amps. The system cycled multiple times with no issue.
So, I refitted all the door panels and tried the system again. All door locked, but when trying to unlock, the fuse blew. Same scenario with a 20, 25, 30, and 40 amp fuse. Somewhere in the system I have a hard short to ground on the unlock side.
Any ideas where this gremlin will take me?
#22
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