F7 Check Main Relay Coil

- Remove main power relay.

Relay Terminals:

- Measure resistance between main relay pins 85 and 86.

- Is resistance between 45 and 90 ohms?

YES -- Service circuit 601 (LB/PK) or 513 (BR/PK) for open. Restore vehicle. Retest system.

NO -- Replace main relay. Restore vehicle. Retest system.