DRAFT
TM 5-4210-249-13&P-2
0156
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TFFT04225
Step 9.
Disconnect cab instrument panel wire harness upper rear warning light flasher unit
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 upper rear warning light flasher unit connector, terminal 1 and a known
good ground.
If 22 to 28 VDC are not present, 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).
Step 10.
Put UPPER REAR WARNING switch to on position (WP 0004). Check for 22 to 28
VDC between cab instrument panel wire harness wire 1632 (brown) at upper rear
warning light flasher unit connector, terminal 2 and a known good ground.
If 22 to 28 VDC are not present, repair wire 1632 in cab instrument panel
wire harness if repairable (TM 9-2320-325-14&P), or replace cab instrument
panel wire harness (WP 0440).
0156-7
