PRE-RELEASE
Power supply
| Power supply |
+30 current is supplied via fuse 35 (22a) to the main instrument unit pin 7 (K12).
The control module uses current from the +30 circuit for its memory.
| Battery Voltage +15 |
+15 current is supplied via fuse 17 (22a) to the main instrument unit pin 1 (K12) and pin 6 (K12).
The main instrument unit is activated by current from the +15 circuit.
Diagnosis
If no +30 current is present, the tripmeter is reset every time the ignition is switched off.If no +15 current is present, the main instrument unit will not be activated. The engine will not start as bus communication has not been activated.
The function has no diagnostics.
