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/
2. Using digital multimeter, test for
Voltage Between 18 and 26 Volts -
or Tail Light Does Not
voltage between rear chassis wir-
Replace rear lamps harness (WP
Operate - Continued
ing harness connector FA-C29
0178).
(WP 0009, Figure 310) terminal 7
Proceed to step 3.
and terminal 1. Voltage should be
Voltage Less Than 18 Volts - Pro-
18 to 26 volts.
ceed to Test Step 6.
3. Turn control indicator switch to
Left Position Light and/or Tail Light
position SER. DRIVE and Park
Do Not Operate - Repeat trouble-
(TM 5-3805-293-10). Visually
shooting from the beginning.
check if left tail light and left posi-
Left Position Light and/or Tail Light
tion light operate.
Operate - Troubleshooting complete.
Test Step 6. Check for Faulty Cab
Lower Wiring Harness.
1. 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).
2. Using digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between cab lower wiring
Replace rear chassis wiring harness
harness connector P-C69 (WP
(WP 0188).
0009, Figure 46) terminal 38 and
Proceed to step 3.
machine ground. Voltage should
Voltage Less Than 18 Volts -
be 18 to 26 volts.
Replace cab lower wiring harness
(WP 0266).
3. Turn control indicator switch to
Left Position Light and/or Tail Light
position SER. DRIVE and Park
Do Not Operate - Repeat trouble-
(TM 5-3805-293-10). Visually
shooting from the beginning.
check if left tail light and left posi-
Left Position Light and/or Tail Light
tion light operate.
Operate - Troubleshooting complete.
Test Step 7. Check for Faulty LH
Position Relay.
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Disconnect the LH position relay
(WP 0009, Figure 336) from LH
position relay socket (WP 0009,
Figure 337).
3. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
0023-95
