Terminal and Connector Inspection
1.

Many malfunctions in the electrical system are caused by poor harness and terminals.

Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

2.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

3.

Has a problem been found?

YES

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.

NO

▶ Go to " Control Circuit Inspection" procedure.

Control Circuit Inspection
1.

Check for open in harness

(1)

Ignition "OFF"

(2)

Disconnect Multipurpose Check Connector and PCM connector.

(3)

Measure resistance between terminal "3" of Multipurpose Check Connector and terminal "23" of PCM harness connector.

Specification : Approx. below 1Ω

(4)

Is the measured resistance within specifications?

YES

▶ Go to " Check for short to ground in harness " as below.

NO

▶ Check open in harenss between Multipurpose Check Connector and PCM connector.

▶ Repair or replace as necessary and then, go to " Verification of Vehicle Repair" procedure.

2.

Check for short to ground in harness

(1)

Ignition "OFF"

(2)

Disconnect Multipurpose Check Connector.

(3)

Measure resistance between terminal "3" of Multipurpose Check Connector and chassis ground.

Specification : Infinite

(4)

Is the measured resistance within specifications?

YES

▶ Substitute with a known - good PCM and check for proper operation.

▶ If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.

NO

▶ Check for short to ground in harenss.

▶ Repair or replace as necessary and then, go to " Verification of Vehicle Repair" procedure.

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