Check For Intermittent Problems

CHECK HARNESS AND CONNECTOR (ECM - KNOCK SENSOR)

(a) Disconnect the C24 ECM connector.

(b) Measure the resistance between the terminals. Standard

Tester Connection

Specified Condition

(c) Reconnect the ECM connector.

Go to step 4

INSPECT ECM (KNK1 VOLTAGE)

(a) Disconnect the C30 knock sensor connector.

(b) Turn the ignition switch to the ON position.

(c) Measure the voltage between the knock sensor terminals.

Standard voltage

Tester Connection

Specified Condition

(d) Reconnect the knock sensor connector. NOTICE:

Fault may be intermittent. Check the wire harness and connectors carefully and retest.

REPLACE ECM

CHECK FOR INTERMITTENT PROBLEMS

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment