TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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e12. SPEEDOMETER DOES NOT OPERATE OR IS INACCURATE (CONT) TEST OPTIONS Continuity Test or STE/ICE-R Test #91 REASON FOR QUESTION KNOWN INFO Is continuity absent from connector P110 socket U to ground? If continuity is present, wire 1793 in CTIS cable assembly is faulty. NO Repair wire 1793 from connector P110 socket U to connector P111 socket B (para 2-45) or replace CTIS cable assembly (para 7-60). YES KNOWN INFO YES NO TEST OPTIONS Continuity Test or STE/ICE-R Test #91 REASON FOR QUESTION Replace CTIS ECU (para 12-6). Is continuity absent from CTIS ECU connector pin U to ground? If continuity is present from CTIS ECU connector pin U to ground, CTIS ECU is faulty. Water temperature gage operates correctly. Main code 13, 22, or 25 not active in pushbutton shift selector. VOLTS gage operates correctly. Vehicle is equipped with WTEC III transmission controls. WTEC III dashboard cable assembly OK. POSSIBLE PROBLEMS Faulty CTIS cable assembly. Faulty CTIS ECU. Faulty speedometer. 14. 15. Water temperature gage operates correctly. Main code 13, 22, or 25 not active in pushbutton shift selector. VOLTS gage operates correctly. Vehicle is equipped with WTEC III transmission controls. WTEC III dashboard cable assembly OK. CTIS cable assembly OK. POSSIBLE PROBLEMS Faulty CTIS ECU. Faulty speedometer. CAUTION Read CAUTION on following page. TM 9-2320-366-20-1 2-354.4 Change 1