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DTC P0686 ECM RELAY
EC-1697
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0686 ECM RELAY PFP:25230
On Board Diagnosis Logic BBS002DD
The MI will not light up for this self-diagnosis.
DTC Confirmation Procedure BBS002DE
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON and then turn OFF.
2. Wait at least 30 seconds.
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode with CONSULT-II.
5. If DTC is detected, go to EC-1699, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON and then turn OFF.
2. Wait at least 30 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
6. If DTC is detected, go to EC-1699, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0686
0686
ECM relay circuit
ECM detects ECM relay is stuck closed even if
ignition switch OFF.
● Harness or connectors
(The ECM relay circuit is shorted.)
● ECM relay
SEF817Y
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