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POWER SUPPLY AND GROUND CIRCUIT
EC-633
[QR (WITHOUT EURO-OBD)]
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EC
17. CHECK GROUND CONNECTIONS
Loosen and retighten three ground screws on the body.
Refer to EC-634, "
Ground Inspection" .
OK or NG
OK >> GO TO 18.
NG >> Repair or replace ground connections.
18. CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 1, 115, 116 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 19.
NG >> Repair open circuit or short to power in harness or connectors.
19. CHECK INTERMITTENT INCIDENT
Refer to EC-626, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> INSPECTION END
PBIB2021E
Continuity should exist.
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