TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
N OT E
5. One or Both Headlights
Do Not Operate in Low
Always inspect the harness connectorsthat are involved in the circuit.
Beam
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure,
and that all connections are in good condition. If a problem with a con-
nection is found, correct the problem and verify that this diagnostic code
is Active before performing this procedure.
Perform open or short circuit test ateach harness connection to identify
correct harness to replace.
Perform this test only if condition is active.
Test Step 1. Check for Faulty Head-
light.
1. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
2. Turn control indicator switch to
position SER. DRIVE (TM 5-
3805-293-10).
3. Turn the dimmer switch to the
high beam position (TM 5-3805-
293-10).
Left or Right or Both Headlights Do
4. Visually check if one headlight
Not Operate in High Beam - Return
does not operate or both head-
to troubleshooting malfunction 4: One
lights do not operate in high
or Both Headlights Do Not Operate in
beam.
High Beam, in this work package.
Both Headlights Operate in High
Beam - Proceed to step 5.
5. Turn the dimmer switch (TM 5-
3805-293-10) to the low beam
position.
Left Headlight Does Not Operate in
6. Visually check if one headlight
Low Beam - Proceed to step 7.
does not operate or both head-
lights do not operate in low beam. Right Headlight Does Not Operate
in Low Beam - Proceed to step 11.
Both Headlights Do Not Operate in
Low Beam - Proceed to step 15.
7. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
8. Disconnect the connector AZ-C1
(WP 0009, Figure 387) from left
headlight (WP 0197).
0023-33
