Power Supply

Power Supply

Battery voltage +30












The +30 circuit is supplied via fuse 17 to the main instrument unit pin 1.
The control module uses current from the +30 circuit for its memory.

Battery voltage +15

+15 voltage is supplied via fuse 27 to the main instrument unit pin 17.
The main instrument unit is activated by current from the +15 circuit.

Diagnosis

If there is no current supply from the +30 circuit, the tripmeter will be zeroed every time the ignition is switched off.

If no +15 current is present, the main instrument unit will not be "woken up". The engine will not start as bus communication has not been "awakened".

The function has no diagnostics.