2004 discovery 175k miles. My concern is, only when the ambient temp or cabin temp is cool/cold, I get a clicking from the BCM. With the clicking comes a few issues like fog lamps shut off, the shifter lights flicker, turn signal operate sporadic(sounds like a double click without illuminating),door latches don’t actuate and lastly is the shifter lock wont disengage. If I remove all the relays from the front of the BCM it still clicks internally. Are there serviceable relays on the backside/inside the BCM?

Sound logical, I didn’t think it was the xyz switch since I don’t get an error from PRND321 and on screen. I didn’t think it could be a brake switch since it happens with the other concerns. From just thinking, It seems to be a power/ground miscontact at the BCM. Let’s see if I can get it out and apart soon. Thank you for the theories