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6 CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect ECM relay.
SEC044D
3. Check harness continuity between ECM relay terminal 31 and ECM relay terminal 7. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 8.
NG © GO TO 7.
7 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors E15, F18
I 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.
8 CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
Check voltage between ECM relay terminal 6 and ground with CONSULT-II or tester.
SEF368X
OK or NG
OK © GO TO 10.
NG © GO TO 9.
9 DETECT MALFUNCTIONING PART
Check the following.
I 15A fuse
I Harness for open and short between ECM relay and fuse
© Repair or replace harness or connectors.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
IGNITION SIGNAL
Diagnostic Procedure (Cont’d)
EC-699
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