H30 Check Circuit 539

- Disconnect wire harness from pump motor relay.

Pump Relay Connector:

- Check for continuity between wire harness to pump motor relay connector pin D and breakout box pin 15.

- Is continuity present?

YES -- Go to H31. H31 Check Power to Relay

NO -- Service circuit 539 (PK/LB). Restore vehicle. Retest system.