CHECK HARNESS BETWEEN ECM AND SECONDARY AIR PUMP RELAY CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from the ECM and secondary air pump relay.

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

Connector & terminal

(B136) No. 8 — (F9) No. 13:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit in harness between ECM and secondary air pump relay connector

• Poor contact of coupling connector