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POWER SUPPLY AND GROUND CIRCUIT EC-157 C D E F G H I J K L M A EC 8. CHECK ECM POWER SUPPLY CIRCUIT-III 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON and then OFF. 3. Check voltage between ECM terminals 119, 120 and ground OK or NG OK >> GO TO 15. NG (Battery voltage does not exist.)>>GO TO 9. 12. 9. CHECK ECM POWER SUPPLY CIRCUIT-IV Check voltage between ECM terminal 111 and ground with CON- OK or NG OK >> GO TO 10. NG >> GO TO 12. 10. CHECK ECM POWER SUPPLY CIRCUIT-V 1. Disconnect ECM harness connector. 2. Disconnect IPDM E/R harness connector E7. 3. Check harness continuity between ECM terminals 119, 120 and IPDM E/R terminal 18. 4. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 18. NG >> GO TO 11. 11. DETECT MALFUNCTIONING PART Check the following. ● Harness or connectors E12, F3 ● Harness for open or short between ECM and IPDM E/R >> Repair open circuit or short to ground or short to power in harness or connectors. Voltage: After turning ignition switch OFF, battery PBIB1630E Voltage: Battery voltage PBIB1191E Continuity should exist. |