AC HEATER CONTROL PANEL LIGHTS DO NOT OPERATE - continued

DRAFT

TB 9-2320-364-13&P-1

AC HEATER CONTROL PANEL LIGHTS DO NOT OPERATE - Continued

WARNING

Remove rings, bracelets, wristwatches, neck chains, and any other jewelry before working around

vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry or tools may short

across electrical circuits or terminals and cause damage to equipment or severe burns or

electrical shock to personnel.

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CONTINUITY TEST

(1) Set multimeter switch to ohms.

(2) Place positive (+) probe of multimeter on optic

ribbon light source ground wire at optic ribbon light

source lamp socket.

(3) Place negative (-) probe of multimeter on a known

good ground.

(a) If there is no continuity, repair optic ribbon light

source ground wire (see Appendix A) or replace

optic ribbon light source wire harness

(WP 0043). Verify repair, go to Step 6 of this

fault.

(b) If there is continuity, replace optic ribbon light

source lamp (WP 0043). Verify repair, go to

Step 6 of this fault.

VISUAL INSPECTION

(1) Turn engine start switch OFF (TM 9-2320-364-10).

(2) Inspect optic ribbon at optic ribbon light source for

loose connection.

(a) If optic ribbon is not securely connected to optic

ribbon light source, reconnect optic ribbon

(WP 0041). Verify repair, go to Step 6 of this

fault.

(b) If optic ribbon is securely connected to optic

ribbon light source, replace optic ribbon

(WP 0041). Verify repair, go to Step 6 of this

PLSAC220

fault.

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