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5 CHECK POWER SUPPLY-II
1. Disconnect ECM relay.
SEC003C
2. Check voltage between ECM relay terminals 2, 6 and ground with CONSULT-II or tester.
SEF292X
OK or NG
OK © GO TO 7.
NG © GO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
I 15A fuses
I Joint connector-13
I Harness for open or short between ECM relay and battery
© Repair open circuit or short to ground or short to power in harness or connectors.
7 CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 26 and ECM relay terminal 1.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK © Go to “DTC P1320 IGNITION SIGNAL”, EC-506.
NG © GO TO 8.
8 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors E15, F18
I Harness for open or short between ECM relay and ECM
© Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER SUPPLY
Main Power Supply and Ground Circuit (Cont’d)
EC-148
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