KNOWN INFO              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. Dashboard cable assembly OK.        POSSIBLE PROBLEMS                   TEST OPTIONS                REASON FOR QUESTION     YES NO 9. Faulty CTIS cable assembly. Faulty manifold valve assembly. Faulty CTIS ECU.             KNOWN INFO              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. Dashboard cable assembly OK.        POSSIBLE PROBLEMS                   TEST OPTIONS                REASON FOR QUESTION     8. YES NO CAUTION Read CAUTION on following page. CAUTION Read CAUTION on following page. Continuity Test or STE/ICE-R Test #91 Continuity Test or STE/ICE-R Test #91 e82. CENTRAL TIRE INFLATION SYSTEM (CTIS) DOES NOT OPERATE (CONT) Replace CTIS cable assembly (para 7-53). Replace CTIS cable assembly (para 7-53). Faulty CTIS cable assembly. Faulty manifold valve assembly. Faulty CTIS ECU. Is continuity present from connector P111 pin F to connector P110 socket T? If continuity is not present, CTIS cable assembly is faulty. Is continuity present from connector P111 pin A to connector P110 socket F? If continuity is not present, CTIS cable assembly is faulty. TM 9-2320-365-20-1 2-914          Change 1