TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 VEHICLE COMPARTMENT HEATER MALFUNCTIONS — Continued 0085 00 EY 1. Remove heater harness plug (1) from heater control jack (2). 2. With RUN-OFF-START switch in START, measure voltage between heater control jack (2) pin A (3) and ground. 3. Does multimeter read 17 volts or more? EYN GO TO FY (PAGE 0085 00-9) 2EY 1. Install heater harness on heater control box jack. 2. Remove heater harness circuit 402 plug (1) from heater fuel pump jack (2). 3. With RUN-OFF-START switch in START, measure voltage between heater harness plug pin (1) and ground. 4. Does multimeter read 17 volts or more? 2EYN 1. Faulty control box to fuel pump harness circuit 402. 2. Notify your supervisor. 3EY 1. Replace vehicle compartment heater fuel pump (WP 0448 00 or WP 0449 00). 2. Verify no faults found. 0085 00-8 Change 1