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EC-1700
[YD (WITHOUT EURO-OBD)]
DTC P0686 ECM RELAY
4. DETECT MALFUNCTIONING PART
Check the following.
● Harness connectors F30, M63
● Harness for open or short between ECM and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ECM RELAY
Refer to EC-1700, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace ECM relay.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1520, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Component Inspection BBS002DH
ECM RELAY
1. Apply 12V direct current between ECM relay terminals (1) and
(2).
2. Check continuity between relay terminals (3) and (5), (6) and
(7).
3. If NG, replace ECM relay.
Condition Continuity
12V direct current supply between ter-
minals (1) and (2)
Yes
OFF No
PBIB0077E
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