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6 CHECK POWER SUPPLY-II 1. Disconnect ECM relay. SEC044D 2. Check voltage between ECM relay terminals 2, 6 and ground with CONSULT-II or tester. SEF292X OK or NG OK © GO TO 8. NG © GO TO 7. 7 DETECT MALFUNCTIONING PART Check the following. I 15A fuses I Joint connector-13 I Harness for open or short between ECM relay and battery © Repair open circuit or short to ground or short to power in harness or connectors. 8 CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Check harness continuity between ECM terminal 38 and ECM relay terminal 1. Refer to WIRING DIAGRAM. Continuity should exist. 2. Also check harness for short to ground and short to power. OK or NG OK © Go to “IGNITION SIGNAL”, EC-685. NG © GO TO 9. 9 DETECT MALFUNCTIONING PART Check the following. I Harness connectors E15, F18 I Harness for open or short between ECM relay and ECM © Repair open circuit or short to ground or short to power in harness or connectors. GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX POWER SUPPLY AND GROUND CIRCUIT Diagnostic Procedure (Cont’d) EC-157 |