CHECK HARNESS BETWEEN KNOCK SENSOR AND ECM CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from ECM and knock sensor.

3) Measure the resistance between ECM harness connector and knock sensor connector.

Connector & terminal

(B134) No. 15 — (E14) No. 1:
(B134) No. 29 — (E14) No. 2:

QUESTION

Is the resistance less than 5 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit of harness between knock sensor and ECM connector

• Poor contact of knock sensor connector

• Poor contact of coupling connector