TM-5-2350-377-14-P
ARMORED COMBAT EARTHMOVER (ACE), M9
TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST) SUPPORTING THE HYDRAULIC BLADE FOLDER-TRACK TENSIONER (HBF-TT)
TM-5-2350-377-14-P - Page 57 of 335
TM 5-2350-377-14&P
NOTE
This procedure applies to either headlight.
Step 1. Check headlight wiring harness for a minimum 24VDC at socket C (6) and D (5).
Turn vehicle MASTER switch ON and turn light switch to SER DRIVE.
Remove headlight (1) from
headlight base (3) and disconnect headlight connector (2) from headlight harness (4).
If no voltage is present at both circuits C (6) and D (5), refer to vehicle electrical wiring diagram,
control wiring harness and rear wiring harness, and troubleshoot circuits 17 and 18.
If minimum 24VDC is present at either circuit C (6) or D (5), go to step 2.
Step 2. Check for ground continuity.
Check for ground continuity between ground lead of headlight harness and vehicle ground.
If an open circuit is indicated, check for loose or missing hardware and dirt or paint.
Tighten or replace
missing hardware, and clean surface where ground lead is connected.
If continuity is indicated, go to step 3.
0008 00-16
0008 00
3
1
2
4
5
6
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1
HEADLIGHTS DO NOT OPERATE
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