TM 42320-387-24-l DCA TROUBLESHOOTING DIAGNOSTIC FLOWCHART KNOWN INFO STEXE-R OK CABLES OK TK OK USING PULSE TACHOMETER POSSIBLE PRbBLEMS VEHICLE SYSTEMS REMOVE THE TACHOMETER FROM THE ENGINE AND INSPECT IT. IS IT OK? VISUAL INSPECTION - CHECK FOR BROKEN WIRES OR CONNECTORS AND WORN PARTS. ALSO CHECK THE SLOT IN THE OIL PUMP DRIVE. REASON FOR OUESllON If the tachometer is no good. you can’t expect good test results. /_ I I TACHOMETER. VEHICLE TACHOMETER STE/lCE-R OK I POSSIBLE PROBLEh!; VEHICLE SYSTEMS DCA t 82 1 TEST OPllONS / INSTALL THE TACHOMETERFROM THE TK KIT. RUN THE ORIGINAL TEST WITH THE VEHICLE TEST METER IN THE TK MODE. IS THE VEHICLE OK? SEE THE CHART ON THE FOLDOUT PAGE TO RUN THE TK VERSION OF THE TEST YOU WANT. REASON FOR OUESTlON You want to know if the vehicle is OK IF YOU CAME FROM ANOTHER L PARAGRAPH, RETURN THERE AND FOLLOW 83 1 TEST OPTIONS DID THE ORIGINAL DCA TEST NONE STEIICE-R OK GIVE A CORRECT RESULT? POSSIBLE PROBLEMS I- 2-486
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