OBC Questions
Posted: Tue Jun 11, 2019 10:04 pm
I have a UK 85 M635...
I removed some aftermarket audio wiring from under the dash and found that the red/green wires which supply power to the radio, interior lights etc had all been messed with - I repaired and re-joined them all and everything worked...apart from the OBC display - illuminated but no LCD.
Then, a few days later the car wouldn't start, I fiddled with various wires and then it started and ran fine - not sure what I did. I tapped the OBC relay while the car was running to see if the display would come back - it didn't but the car did stall. Is this just because I'm disturbing the immobiliser relay? Is the loss of display just coincidence?
I really need a spare OBC to test with, a new relay is £80, not too bad but I don't want to replace it for nothing. Thanks for any help!
I removed some aftermarket audio wiring from under the dash and found that the red/green wires which supply power to the radio, interior lights etc had all been messed with - I repaired and re-joined them all and everything worked...apart from the OBC display - illuminated but no LCD.
Then, a few days later the car wouldn't start, I fiddled with various wires and then it started and ran fine - not sure what I did. I tapped the OBC relay while the car was running to see if the display would come back - it didn't but the car did stall. Is this just because I'm disturbing the immobiliser relay? Is the loss of display just coincidence?
I really need a spare OBC to test with, a new relay is £80, not too bad but I don't want to replace it for nothing. Thanks for any help!