Table of Contents
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EG2–478
DIAGNOSTIC CHART
Check for open and short in harness and connector
between ECM and heated oxygen sensor.
Check heated oxygen sensor data.
Check output voltage of heated oxygen sensor.
Replace heated oxygen sensor.
WIRING DIAGRAM
1MZ–FE ENGINE
–
CIRCUIT INSPECTION
Repair or replace harness or connector.
Check fuel trim system.
Perform confirmation driving pattern.
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Table of Contents
Troubleshooting
