| CHECK HARNESS BETWEEN ECM AND FRONT OXYGEN (A/F) SENSOR. |
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Measure the resistance between ECM and chassis ground. Connector & terminal (B137) No. 23 — Chassis ground: (B137) No. 14 — Chassis ground: |
| QUESTION | |
|
Is the resistance 1 MΩ or more? | |
| Yes | No |
|
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Repair the ground short circuit of harness between ECM and front oxygen (A/F) sensor. |
