TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
15. Left Position Light and/
4. Use a digital multimeter, test for
Voltage Between 18 and 26 Volts -
or Tail Light Does Not
voltage between LH position relay
Proceed to Test Step 8.
Operate - Continued
socket (WP 0009, Figure 337) ter-
Voltage Less Than 18 Volts - Pro-
minal E8 and E7. Voltage should
ceed to Test Step 9.
be 18 to 26 volts.
Test Step 8. Check for Open Cab
Lower Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Disconnect the rear chassis wir-
ing harness connector FA-C22
(WP 0009, Figure 47) from cab
lower wiring harness connector P-
C69 (WP 0009, Figure 46) (WP
0266).
3. Connect jumper wire between cab
lower wiring harness connector P-
C69 (WP 0009, Figure 46) termi-
nals 38 and 29.
4. Using digital multimeter, measure
Resistance Less Than 5.0 Ohms -
resistance between LH position
Replace LH position relay (WP 0009,
relay socket (WP 0009, Figure
Figure 336).
337) terminal C7 and E7. Resis-
Remove jumper wire between cab
tance should be less than 5.0
lower wiring harness connector P-C69
ohms.
(WP 0009, Figure 46) terminals 38
and 29.
Connect the rear chassis wiring har-
ness connector FA-C22 (WP 0009,
Figure 47) to cab lower wiring harness
connector P-C69 (WP 0009, Figure
46) (WP 0266).
Connect the rear chassis wiring har-
ness connector FA-C41 (WP 0009,
Figure 21) to circuit breaker box wiring
connector R-C5 (WP 0009, Figure 22)
(WP 0239).
Connect AG-C10 (WP 0009, Figure
399) to left tail light (WP 0177).
Connect AG-C3 (WP 0009, Figure
334) to left tail light (WP 0177).
Connect AZ-C5 (WP 0009, Figure
391) to left headlight (WP 0197).
Proceed to step 5.
0023-96
