| CHECK HARNESS BETWEEN ECM AND ELECTRONIC THROTTLE CONTROL. |
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1) Turn the ignition switch to OFF. 2) Disconnect the connectors from ECM and electronic throttle control. 3) Measure the resistance of harness between ECM and electronic throttle control connector. Connector & terminal (B134) No. 28 — (E57) No. 4: (B134) No. 29 — (E57) No. 3: |
| QUESTION | |
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Is the resistance less than 1 Ω? | |
| Yes | No |
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Repair the harness and connector. NOTE: In this case, repair the following item: • Open circuit in harness between ECM and electronic throttle control connector • Poor contact of coupling connector |
