TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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KNOWN INFO TEST OPTIONS REASON FOR QUESTION TM 9-2320-365-20-1 KNOWN INFO 2-918.12 Change 2 20. Is 4.9-5.1 VDC present at connector P113 socket B? Voltage Test or STE/ICE-R Test #89 WARNING Read WARNING on following page. Replace pressure transducer (para 12-7). POSSIBLE PROBLEMS 21. NO REASON FOR QUESTION TEST OPTIONS Continuity Test or STE/ICE-R Test #91 Is continuity present from air pressure switch pin A to air pressure switch pin B? YES Replace air pressure switch (para 23-8). e82. CENTRAL TIRE INFLATION SYSTEM (CTIS) DOES NOT OPERATE (CONT) Faulty air pressure switch. Faulty start and charging cable assembly. Faulty WTEC II / WTEC III dashboard cable assembly. Faulty CTIS cable assembly. VOLTS gage registers in green zone with engine running. Circuit breaker CB40 OK. FRONT BRAKE AIR and REAR BRAKE AIR pressure gages read normal. If continuity is not present, air pressure switch is faulty. If 4.9-5.1 VDC is not present, CTIS ECU is faulty. If 4.9-5.1 VDC is present, pressure transducer is faulty. NO YES Replace CTIS ECU (para 12-6). TEST OPTIONS VOLTS gage registers in green zone with engine running. Circuit breaker CB40 OK. FRONT BRAKE AIR and REAR BRAKE AIR pressure gages read normal. Air pressure switch OK. Start and charging cable assembly OK. WTEC II / WTEC III dashboard cable assembly OK. Manifold valve assembly OK. CTIS cable assembly OK. POSSIBLE PROBLEMS Faulty air pressure transducer. Faulty CTIS ECU.