TM 5-2420-231-23-1
0039
Table 1. Alarm Signal Does Not Function.
0039
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Alarm Signal Does Not
Test Step 1. Verify Instrument
Function
Cluster Operation.
Verify that the following indicators
Indicators Remain Illuminated -
Proceed to Test Step 2.
remain illuminated with the ignition
switch in the on position (TM 5-2420-
Indicators Do Not Illuminate -
Diagnose instrument cluster first (WP
231-10) and the engine not running:
0018) and then proceed to Test Step 9.
a. Low Engine Oil Pressure
(Figure 1, Item 2)
b. Alternator Charging (Figure 1,
Item 3)
c. Parking Brake (Figure 1,
Item 1)
Figure 1. Instrument Cluster Indicators.
0039
Test Step 2. Verify Operation of
Alarm.
Turn light control switch lever (Figure 2,
Alarm Off - Proceed to Test Step 3.
Item 4) to the SER. DRIVE position
Both Driving Lights Off and Alarm On
(Figure 2, Item 3) and listen for alarm
- Proceed to Test Step 9.
(TM 5-2420-231-10).
Test Step 3. Check for Faulty Light
Control Switch.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Disconnect front console wiring
harness connector (WP 0007, Fig-
ure 71) from light control switch
(WP 0007, Figure 72) (WP 0175).