TM 9-2350-261-20-1
1. Measure voltage between coolant pump to heater
harness terminal circuit 402B (1) on coolant pump
and ground with switch in start position.
2. Does multimeter read less than 17 volts?
YES
1. Measure voltage between coolant pump to heater
harness circuit 402B (1) on terminal strip (2) and
ground with switch in start position.
2. Does multimeter read less than 17 volts?
1
I
1. Replace coolant heater (page 32-49).
2. Verify no faults found.
I
1. Replace coolant pump to
heater harness
(page 32-44).
2. Verify no faults found.
3-224
