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EC-128
[QR (WITH EURO-OBD)]
POWER SUPPLY AND GROUND CIRCUIT
10. CHECK ECM RELAY
Refer to EC-131, "
Component Inspection" .
OK or NG
OK >> Go to EC-417, "IGNITION SIGNAL" .
NG >> Replace ECM relay.
11. CHECK ECM POWER SUPPLY CIRCUIT-III
1. Stop engine and wait at least 10 seconds.
2. Turn ignition switch ON and then OFF.
3. Check voltage between ECM terminals 119, 120 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 17.
NG (Battery voltage does not exist.)>>GO TO 12.
NG (Battery voltage exists for more than a few seconds.)>>GO TO 14.
12. CHECK ECM POWER SUPPLY CIRCUIT-IV
1. Disconnect ECM relay.
2. Check voltage between ECM relay terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
Voltage: After turning ignition switch OFF, battery
voltage will exist for a few seconds, then
drop approximately 0V.
PBIB1630E
PBIB1973E
Voltage: Battery voltage
SEF860T
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