TEST OR INSPECTION
Install circuit breaker P4 (WP 0412). Remove pump house panel G (WP 0540).
Disconnect pump house wire harness pump house heater 3-terminal connector. Turn
battery disconnect switch to ON position (WP 0007). Check for 22 to 28 VDC between
wires 2454 (green) at pump house wire harness pump house heater 3-terminal
connector, terminals A and B, and a known good ground.
If 22 to 28 VDC are not present at both terminals, go to Step 24.
If 22 to 28 VDC are present at one but not both terminals, repair wire
2454 in pump house wire harness if repairable (TM 9-2320-325-14&P),
or replace pump house wire harness (WP 0458).
If 22 to 28 VDC are present at both terminals, go to Step 22.