Power Supply (+54 Circuit)
FAULT DIAGNOSIS HINTS1. Check the battery voltage.
2. Check the connections on distribution block 75 and the +30(230) and +54(231) terminal blocks.
3. If current is present on the +30 terminal block but not on the +54 terminal block, check that ignition switch relay 21 is in working order by turning the ignition switch to the Drive position. Current should then be present on pin 87 of the relay.
4. Check the relevant wiring harness.