CHECK HARNESS BETWEEN ECM AND SECONDARY AIR PUMP RELAY CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector of ECM.

3) Measure the resistance of harness between ECM and secondary air pump relay connector.

Connector & terminal

(B136) No. 8 — (B9) No. 13:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the poor contact of the ECM connector.

Repair the open circuit in harness between ECM and secondary air pump relay connector.