| CHECK ECM GROUND HARNESS. |
|
Measure the voltage between ECM and chassis ground. Connector & terminal (B134) No. 5 (+) — Chassis ground (−): (B137) No. 1 (+) — Chassis ground (−): (B137) No. 2 (+) — Chassis ground (−): (B137) No. 3 (+) — Chassis ground (−): (B137) No. 7 (+) — Chassis ground (−): |
| QUESTION | |
|
Is the voltage less than 1 V? | |
| Yes | No |
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Repair the poor contact of the ECM connector. |
Repair the following item. • Open circuit in ground circuit • Further tightening of the engine ground terminal. • Poor contact in coupling connector |