| CHECK OUTPUT SIGNAL OF ECM. |
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Measure the voltage between ECM connector and chassis ground. Connector & terminal (B136) No. 4 (+) — Chassis ground (−): |
| QUESTION | |
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Does the voltage change by shaking the harness and connector of ECM while monitoring the value on voltage meter? | |
| Yes | No |
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Repair the poor contact of ECM connector. |
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