Year of Manufacture *: 2002
( Optional ) Engine Code or CC: 3.0 M54
Got this E39 in with a weird electrical glitch - when you use the indicators they flash at the correct speed, but if you switch the lights on at the same time they flash twice as fast (like when you have a blown bulb). If you use the hazard lights they flash correctly lights on or off.
We've checked and cleaned all the earths, checked the bulbs and bulb holders for corrosion (even changed the indicator bulbs), checked the visible wiring etc but fault still remains. Even recoded the light check module but no change.
Diagnostics (Autologic) don't show any codes.
We suspect a faulty light check module (LCM) but wondered if anyone else had come across this before and give us a pointer or two?
Thanks.
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