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DTC P0686 ECM RELAY
EC-1321
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
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-1321, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace ECM relay.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1058, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Component Inspection BBS0023F
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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