TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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e3. 12 VDC AND 24 VDC CIRCUITS DO NOT OPERATE (CONT) KNOWN INFO YES TEST OPTIONS Circuit breaker CB70 OK. Battery(ies) OK. Cab to chassis ground strap OK. PDP to cab ground cable OK. Shunt OK. Starter to shunt 24 VDC cable OK. Battery to shunt cable assembly OK. Starter to chassis ground cable OK. POSSIBLE PROBLEMS Faulty dashboard cable assembly. Faulty 100 AMP reverse polarity relay. Faulty battery to 100 AMP reverse polarity relay 12 VDC cable. Faulty 100 AMP reverse polarity relay to PDP 12 VDC cable. Faulty 200 AMP reverse polarity relay. Faulty 200 AMP terminal block. Faulty 200 AMP terminal block to PDP 12 VDC cable. Faulty 200 AMP terminal block to reverse polarity relay 12 VDC load cable. Faulty 200 AMP terminal block to reverse polarity relay 12 VDC battery cable. Faulty battery to 200 AMP terminal block 12 VDC cable assembly. 4. Is 12 VDC present at terminal X2 on PDP? REASON FOR QUESTION Go to step 11 of this fault. NO Voltage Test or STE/ICE-R Test #89 This question eliminates possible problems and determines where troubleshooting continues. WARNING CAUTION Read WARNING and CAUTION on following page. TM 9-2320-365-20-1 2-256.4 Change 1