INSTRUMENT PANEL GAGE LIGHTS DO NOT OPERATE - continued

TM 10-3930-673-20-1

5. INSTRUMENT PANEL GAGE LIGHTS DO NOT OPERATE (CONT).

KNOWN INFO

TEST OPTIONS

Bulb(s) OK.

Voltage Test.

Is 24 vdc present at female

Connector P2 OK.

STE/ICE-R #89

Connector J2 OK.

connector where wire 13

REASON FOR QUESTION

Wire 9 OK.

connects?

This question eliminates possible

Circuit breaker CB6 OK.

problems and determines where

Wire 1 OK.

troubleshooting continues.

Run relay OK.

Wire 3 OK.

Circuit breaker CB4 OK.

Wire 40 OK.

POSSIBLE PROBLEMS

Blackout light switch faulty.

Auxiliary light switch faulty.

Wire 13 faulty.

Go to Step 12 of

Connector J1 faulty.

this fault.

Connector P1 faulty.

Socket(s) faulty.

YES

Go to Step 13 of

this fault.

2-112