DRAFT
TM 5-4210-249-13&P-2
0130
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TFFT02974
WARNING
ICON 3
Remove rings, wristwatches, neck chains, and any other jewelry before working
around vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry
and tools may short across electrical circuits and cause damage to equipment, or
severe burns or electrical shock to personnel.
Step 52.
Remove cab instrument panel A (WP 0311). Remove relay 4 (WP 0240). Turn battery
disconnect switch to ON position (WP 0007). Turn ENGINE switch to ON
position (TM 9-2320-347-10). Check for 22 to 28 VDC between cab power distribution
wire harness wires 1020 (pink) at relay 4 connector, terminal 1.
If 22 to 28 VDC are not present, go to Step 54.
Step 53.
Turn ENGINE switch to OFF position (TM 9-2320-347-10). Turn Service Drive Lights
Off (TM 9-2320-347-10). Turn battery disconnect switch to OFF position (WP 0007).
Check for continuity across cab power distribution wire harness wire 1640 (black) from
relay 4 connector, terminal 2 to a known good ground.
a.
If there is no continuity, replace cab power distribution wire harness
and block (WP 0441).
b.
If there is continuity, replace relay 4 (WP 0402).
0130-37