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 " Power Circuit Inspection " procedure.

Power Supply Circuit Inspection
1.

Check for short in harness.

(1)

Ignition "OFF".

(2)

Disconnect MAF sensor connector.

(3)

Ignition "ON" & Engine "OFF".

(4)

Measure voltage between terminal "2" of the sensor harness connector and chassis ground.

Specification : 4.8V ~ 5.1V

(5)

Is the measured voltage within specifications ?

YES

▶ Go to "Component Inspection" procedure.

NO

▶ Check for short to battery or ground in the MAFS power harness.

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

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