Warning/Indicator Lamps Controlled By MIU Not working

Warning and Indicator Lamps Controlled By Main instrument not working

This applies to the following lamps:
^ Central warning lamp
^ Door indicator lamps with associated doors
^ LH direction indicators
^ RH direction indicators
^ INFO DISPL lamp
^ SHIFT UP lamp
^ CRUISE Lamp
^ REAR FOG LIGHT lamp
^ SPORT Lamp
^ P, R, N, D, 3, 2,1
^ Tank Empty
^ CHECK ENGINE
^ CHECK GEARBOX
^ Brake fluid warning lamp
^ WINTER Lamp

Fault symptoms
One of the listed lamps does not work.

Diagnostic help
The lamps can be activated with the diagnostic instrument.

For fault diagnosis of the bus, see Bus and Diagnostics communication. See Computers and Control Systems.

Checking the wiring harness
Jiggle the leads and in-line connectors at various points and in different directions to detect any intermittent breaks or short circuits in the wiring. Observe the multimeter, test lamp or diagnostic instrument while carrying out this check.

Diagnostic procedure

1. Checking the warning lamps
^ Connect the diagnostic instrument and contact the Main instrument unit.
^ Activate: Faulty warning lamp (ON).





Is the function correct?
YES
^ See fault diagnosis of system in question.
^ Go to step2.
NO
^ Check and replace faulty bulb.
^ Go to step2.

2. Final check
^ Clear diagnostic trouble codes in all systems.





^ Carry out a function check.





Is the function correct?
YES
^ The steps taken to rectify the fault were correct.
NO
^ See Fault diagnosis, general, "Before changing a control module." Before Changing A Control Module