TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. One or Both Headlights
Test Step 4. Check for Bad Fuse.
Do Not Operate in High
1. Turn ignition switch and battery
Beam - Continued
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Remove fuse F38 from cab fuse
panel (TM 5-3805-293-10).
3. Visually inspect fuse F38 for open
Resistance Less Than 5.0 Ohms -
or use a digital multimeter to mea-
Proceed to Test Step 5.
sure resistance between the ter-
Fuse Open or Resistance 5.0 Ohms
minals of fuse F38. Resistance
or Greater - Replace fuse F38.
should be less than 5.0 ohms.
Connect the connector AZ-C1 (WP
0009, Figure 387) to left headlight and
install headlight assembly (WP 0197).
Proceed to step 4.
4. Turn control indicator switch to
Headlight or Headlights Do Not
position SER. DRIVE, dimmer
Operate in High Beam - Proceed to
switch to high beam (TM 5-3805-
Test Step 5.
293-10) and verify headlights
Both Headlights Operate in High
operate in high beam.
Beam - Troubleshooting complete.
Test Step 5. Check for Open Cab
Lower Wiring Harness.
1. Install fuse F38 on cab fuse panel
(TM 5-3805-293-10).
2. Disconnect the control indicator
harness connector PE-C11 (WP
0009, Figure 287) from cab lower
wiring harness connector P-C11
(WP 0009, Figure 286) (WP
0283).
3. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
4. Use a digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between connector P-C11
Proceed to Test Step 6.
(WP 0009, Figure 286) terminals
Voltage Less Than 18 Volts -
1 and machine ground. Voltage
Replace cab lower wiring harness
should be 18 to 26 volts.
(WP 0266).
Connect the connector AZ-C1 (WP
0009, Figure 387) to left headlight and
install headlight assembly (WP 0197).
Proceed to step 5.
0023-21