| CHECK HARNESS BETWEEN ECM AND MANIFOLD ABSOLUTE PRESSURE SENSOR CONNECTOR. |
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1) Turn the ignition switch to OFF. 2) Disconnect the connector from manifold absolute pressure sensor. 3) Turn the ignition switch to ON. 4) Measure the voltage between manifold absolute pressure sensor connector and engine ground. Connector & terminal (E21) No. 3 (+) — Engine ground (−): |
| QUESTION | |
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Is the voltage 4.5 V or more? | |
| Yes | No |
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Repair the open circuit of harness between ECM and manifold absolute pressure sensor connector. |
