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EC-576
[QR (WITHOUT EURO-OBD)]
POWER SUPPLY AND GROUND CIRCUIT
13. DETECT MALFUNCTIONING PART
Check the following.
● Harness connectors E60, F36
● 10A fuse
● 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.
14. CHECK ECM POWER SUPPLY CIRCUIT-V
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 119, 120 and ECM relay terminal 5.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 16.
NG >> GO TO 15.
15. DETECT MALFUNCTIONING PART
Check the following.
● Harness connectors F41, M61
● 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.
16. CHECK ECM RELAY
Refer to EC-578, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace ECM relay.
Continuity should exist.
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