TM 9-2320-272-24-1
Table 2-3. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 3.
Test instrument cluster voltage feed.
Step
1. Place battery switch to OFF position.
Step
2. Remove instrument cluster panel (para. 3-83).
Step
3. Disconnect lead 27 from each gauge.
Step
4. Place battery switch to ON position.
Step
5. Set multimeter to 50-volt range.
Step
6. Connect multimeter negative lead to vehicle chassis ground and positive lead to lead 27.
Multimeter should indicate battery voltage.
If battery voltage is not indicated, disconnect instrument cluster wiring harness lead 27
from power source lead 27 and go to step 7.
Step 7. With multimeter negative lead connected to ground, touch positive lead to circuit 27
connector at instrument cluster, Multimeter should indicate battery voltage.
a. If battery voltage is indicated, replace instrument cluster wiring harness
b. If battery voltage is not indicated, and voltage was correct in test 1, step 9, repair
power source lead 27 (para. 3-131).
END OF TESTING!
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