Check Harness And Connector Af Sensor Ecm Af Sensor Af Heater Relay

Wire Harness Side:

A/F Sensor Connector

Sensor 1 jQgjJ

Front View ECM Connector

IIU

ÉS

A1A-

HA1A A1A+

HA1A A1A+

Engine Room R/B:

Engine Room R/B:

A/F HEATER Relay

(a) Check the harness and connectors between the ECM and A/F sensor.

(1) Disconnect the A4 A/F sensor connector.

(2) Disconnect the E4 ECM connector.

(3) Check the resistance.

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