DRAFT
TM 5-4210-249-13&P-2
0156
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TFFT04223
Step 6.
Install fuse FS 5 (WP 0401). Remove personnel cab instrument panel C (WP 0311).
Disconnect cab instrument panel wire harness UPPER REAR WARNING switch
connector. Turn battery disconnect switch to ON position (WP 0007). Turn Service
Drive Lights On (TM 9-2320-347-10). Put EMERG MASTER switch to on position
(WP 0004). Check for 22 to 28 VDC between cab instrument panel wire harness wire
1631 (brown) at cab instrument panel wire harness UPPER REAR WARNING switch
connector, terminal 6 and a known good ground.
If 22 to 28 VDC are present, go to Step 8.
Step 7.
Put EMERG MASTER switch to off position (WP 0004). Turn Service Drive Lights Off
(TM 9-2320-347-10). Turn battery disconnect switch to OFF position (WP 0007).
Disconnect cab instrument panel wire harness cab power distribution wire harness
connector. Check for continuity across cab instrument panel wire harness wire 1631
(brown) from cab instrument panel wire harness connector, terminal 3 to UPPER REAR
WARNING switch connector, terminal 6.
a.
If there is continuity, repair wire 1631 in cab power distribution wire
harness if repairable (TM 9-2320-325-14&P), or replace cab power
distribution wire harness and block (WP 0441).
b.
If there is no continuity, repair wire 1631 in cab instrument panel wire
harness if repairable (TM 9-2320-325-14&P), or replace cab instrument
panel wire harness (WP 0440).
0156-5
