TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 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 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 II transmission controls. POSSIBLE PROBLEMS 6. Is continuity absent from connector PX33 socket H2 to ground? YES NO YES NO Faulty WTEC II dashboard cable assembly. Faulty WTEC II VIM. Faulty WTEC II cab transmission harness. Faulty CTIS cable assembly. Faulty CTIS ECU. Faulty speedometer. If continuity is not present from connector PX33 socket H2 to connector PX8 pin 4, wire 1793 is faulty. REASON FOR QUESTION Continuity Test or STE/ICE-R Test #91 TEST OPTIONS 5. Is continuity present from connector PX33 socket H2 to connector PX8 pin 4? CAUTION Read CAUTION on following page. Faulty WTEC II dashboard cable assembly. Faulty WTEC II VIM. Faulty WTEC II cab transmission harness. Faulty CTIS cable assembly. Faulty CTIS ECU. Faulty speedometer. POSSIBLE PROBLEMS 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 II transmission controls. KNOWN INFO If continuity is present, wire 1793 from connector PX33 socket H2 to connector PX8 pin 4 or wire 1793 from connector J111 socket B to connector PX8 pin 4 is faulty. CAUTION Read CAUTION on following page. Repair wire 1793 from connector PX33 socket H2 to connector PX8 pin 4 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10). Repair wire 1793 from connector PX33 socket H2 to connector PX8 pin 4 or wire 1793 from connector J111 socket B to connector PX8 pin 4 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10). TM 9-2320-365-20-1 2-338 Change 1