Fault diagnosis, charging indicator lamp (MIU2)

If the lamp lights up, continue with point 2.

If it does not light up, proceed to point 3.

If the lamp still fails to light up when activated, check that the new bulb is OK by fitting it in place of another bulb in the main instrument display panel that does light up.

If the bulb is OK, the fault is probably in the intermediate part of the main instrument display panel which will then have to be changed.

With the engine switched off and the ignition switched on, the Scan Tool's display should read "CHARGE WARN ON" if the charging indicator lamp is in proper working order.

If it is in proper working order, both bulbs (charging lamp and brake fluid level) could be faulty. Continue with point 4.

If the display reads "CHARGE WARN OFF" (battery voltage on pin 15), there is probably an open circuit in the wiring between the main instrument display panel and the generator. Continue with point 5.

If the new bulbs still do not light up when activated, there could be an internal fault in the main instrument display panel. Remove the main instrument display panel's rear section complete with processor card and check that all leads between the processor card and the intermediate part are securely located. If any lead has worked loose or is broken, continue on .

If the connections are OK, the fault is probably in the intermediate part with bulbs and indicating instruments. Continue on .

Take a reading across pin 15 on the BOB and terminal D+ on the generator to check for an open circuit.

If there is an open circuit, investigate the cause and take appropriate action.