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START SIGNAL EC-341 [YD (WITH EURO-OBD)] C D E F G H I J K L M A EC Diagnostic Procedure EBS013TP 1. CHECK START SIGNAL OVERALL FUNCTION With CONSULT-II 1. Turn ignition switch ON. 2. Check “START SIGNAL” in “DATA MONITOR” mode with CON- Without CONSULT-II Check voltage between ECM terminal 99 and ground under the fol- OK or NG OK >> INSPECTION END NG >> GO TO 2. 2. CHECK START SIGNAL INPUT SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector and ignition switch harness connector. 3. Check harness continuity between ECM terminal 99 and ignition switch terminal 6. 4. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 4. NG >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. ● 10A fuse ● Harness connectors M77, F109 ● Fuse block (J/B) connectors M2, E106 ● Harness for open or short between ECM and ignition switch >> Repair open circuit or short to ground or short to power in harness or connectors. Condition START SIGNAL Ignition switch ON OFF Ignition switch START ON PBIB0433E Condition Voltage Ignition switch ON Approximately 0V Ignition switch START Battery voltage PBIB1949E Continuity should exist. |