Power window relay click sound from BCM

[derrro]

Hey fellas recently when I raise my front power windows they almost get to the top and there is a clicking sound (like a relay) coming from somewhere under the steering wheel. Have checked to see it is not the window relay. sounds like it is coming from the BCM.

Anyone got any ideas? I thought that the BCM was all transistorised - as in no relays.

This is starting to give me the sh*ts so any help would be greatly appreciated.

Am happy to help you guys out if I can ever help!

[VZSSTHUNDER06]

The BCM does have an assortment of relays in it mate nothing to worry about

[derrro]

The BCM does have an assortment of relays in it mate nothing to worry about

ahh, cool. Can they be accessed? One sounds like it needs to be replaced

[derrro]

The BCM does have an assortment of relays in it mate nothing to worry about

yeah but it sounds like sh*t

[bcw61]

Hey fellas recently when I raise my front power windows they almost get to the top and there is a clicking sound (like a relay) coming from somewhere under the steering wheel

This sounds suspiciously like the power window circuit breaker tripping under load, especially when you have said that it occurs when the window is nearly to the top & with the window motor at a higher load. The circuit breaker is located on the instrument panel fuse block which is in the vicinity of the BCM, so the clicking sound may sound like it is coming from the BCM.

[derrro]

This sounds suspiciously like the power window circuit breaker tripping under load, especially when you have said that it occurs when the window is nearly to the top & with the window motor at a higher load. The circuit breaker is located on the instrument panel fuse block which is in the vicinity of the BCM, so the clicking sound may sound like it is coming from the BCM.

Checked the relay there - thanks for mentioning it but unfortunately it aint that one

[bcw61]

Checked the relay there - thanks for mentioning it but unfortunately it aint that one

Not the relay mate. There is a circuit breaker for the power windows (does the similar job to a fuse). That is what I was referring to.

[RiCeY]

It is normal for relays to "click" though it shouldnt be audible in the cab.

[derrro]

Yeah I know, but this one clicks about 3 times a second if you hold the switch in the top position. Have not yet looked closely into it but have felt the outside of the BCM when happening; it feels like it is something in there

[derrro]

Not the relay mate. There is a circuit breaker for the power windows (does the similar job to a fuse). That is what I was referring to.

Cheers must have misunderstood u. I have studied the circuitry diagram pretty closely on the fuse/relay panel. I can't see a circuit breaker on there, just fuses and relays. And say a circuit breaker was tripping, wouldn't it remain off after it had tripped? What's the circuit breaker look like? Thanks