W/Harness Inspection

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 ?






Power Circuit Inspection

1. Check voltage
(1) IG "OFF" and disconnect Ignition Coil connector.
(2) IG "ON" and ENG "OFF"
(3) Measure voltage between terminal 1 of ignition coil harness connector and chassis ground.

Specification : Approx. B+





(4) Is the measured voltage within specification ?






Control Circuit Inspection

1. Check short to battery in harness.
(1) IG "OFF" and disconnect ignition coil connector and PCM connector.
(2) Measure resistance between terminals 1 and 2 of ignition coil harness connector.

Specification : Infinite





(3) Is the measured resistance within specification ?





2. Check short to ground in harness
(1) IG "OFF" and disconnect ignition coil connector and PCM connector.
(2) Measure resistance between terminal 2 of ignition coil harness connector and chassis ground.

Specification : Infinite





(3) Is the measured resistance within specification ?





3. Check open in harness
(1) IG "OFF" and disconnect Ignition Coil connector and PCM connector.
(2) Measure resistance between terminal 2 of Ignition Coil harness connector and terminal 60 of PCM harness connector.

Specification : Below 1 ohms





(3) Is the measured resistance within specification ?