TM 5-3825-270-23&P
0025
DECISION
Both inoperative - Go to step 2. (Step 2 - Does ENGINE OFF/BATTERY DRAIN indicator illuminate?)
One inoperative - Replace work light. (WP 0106) Verify problem is solved. (Step 7 - Do work lights illuminate?)
STEP 2
Does ENGINE OFF/BATTERY DRAIN indicator illuminate?
NOTE
The ENGINE OFF/BATTERY DRAIN indicator and work lights share some of the same
circuitry. The following test is used for further isolation of work light malfunction.
Observe ENGINE OFF/BATTERY DRAIN indicator.
ENGINE OFF / BATTERY
DRAIN INDICATOR
Figure 2. Engine Off/Battery Drain Indicator - Step 2.
CONDITION/INDICATION
Does ENGINE OFF/BATTERY DRAIN indicator illuminate?
DECISION
No - Go to No Power To Control Panel. (WP 0027)
Yes - Go to step 3. (Step 3 - Are 22 to 28 VDC measured at work light harness connector pin 1?)
STEP 3
Are 22 to 28 VDC measured at work light harness connector pin 1?
1.
Disconnect work light harness connector. (WP 0106)
2.
Set multimeter to measure voltage.
WARNING
Remove all jewelry such as rings, ID tags, bracelets, etc., prior to working on or around
vehicle. Jewelry and tools can catch on equipment, contact positive electrical circuits, and
cause a direct short, severe burns, or electrical shock. Failure to comply may result in injury
or death to personnel.
3.
Place red multimeter probe to work light harness connector pin 1.
