TM 5-3805-292-23
0006
ELECTRICAL TROUBLESHOOTING - ONE OR MORE EXTERIOR LIGHT(S) INOPERATIVE CONTINUED
Z
Place light switch on work light/side light
position (TM 5-3805-292-10).
Disconnect side work light
12V
Perform Open Harness Test for
NO
present?
Measure voltage between work light
circuit 790 (WP 0173).
connector 312-A or 313-A, circuit 790H or
790G (P), harness side, and ground (WP
YES
Check continuity between work light
Continuity
Perform Open Harness Test for
connector 312-B or 313-B, circuit 178G
NO
or 178H (B), harness side and ground
present?
circuit 178 (WP 0173).
YES
W
Stop.
Bulb
Check rear position light bulb (WP 0163).
Replace bulb (WP 0163).
NO
okay?
YES
Place light switch on road position
(TM 5-3805-292-10).
Remove light relay #2 (TM 5-3805-
12V
292-10).
Perform Open Harness Test for
NO
Measure voltage between relay
circuit 790 (WP 0173).
present?
connector pin 30, circuit 790L (P),
fuse box side, and ground (WP 0175,
Frame 10. Power Center).
YES
Check for continuity between light
AM
Continuity
relay #2 connector pin 87, circuit
YES
790KK (P), fuse box side, and ground
present?
CONTINUED
NO
Install light relay #2.
AA
CONTINUED