| CHECK OUTPUT SIGNAL OF ECM. |
|
Measure the voltage between ECM connector and chassis ground. Connector & terminal (B134) No. 19 (+) — Chassis ground (−): |
| QUESTION | |
|
Does the voltage change by shaking the ECM harness and connector? | |
| Yes | No |
|
Repair the poor contact of ECM connector. |
Replace the ECM. |
