Quest V6-3.5L (VQ35DE) (2009)
OK or NG
OK >>GO TO 5.
NG >>Repair or replace ground connections.
5.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 1, 115, 116 and ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to power.
OK or NG
OK >>GO TO 7.
NG >>GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
-
Harness connectors F14, E5
-
Harness for open or short between ECM and ground
>>Repair open circuit or short to power in harness or connectors.
7.CHECK ECM POWER SUPPLY CIRCUIT-II
1. Reconnect ECM harness connector.
2. Turn ignition switch ON.