| CHECK ECM GROUND HARNESS. |
|
Measure the voltage between ECM and chassis ground. Connector & terminal (B134) No. 6 (+) — Chassis ground (−): (B135) No. 3 (+) — Chassis ground (−): (B135) No. 4 (+) — Chassis ground (−): (B137) No. 1 (+) — Chassis ground (−): (B137) No. 6 (+) — Chassis ground (−): (B137) No. 7 (+) — Chassis ground (−): |
| QUESTION | |
|
Is the voltage less than 1 V? | |
| Yes | No |
|
Repair the poor contact of the ECM connector. |
Repair the following item. • Further tightening of the engine ground terminal. • Poor contact in ECM connector • Poor contact in coupling connector |