W/Harness Inspection

Engine Control
P0203 Injector Circuit/Open-Cylinder 3 - Inspection/Repair:_:W/Harness Inspection

Terminal & 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?






Control Circuit Inspection

Check Short in control circuit
1. IG KEY "OFF".
2. Disconnect the Injector and ECM connectors.
3. Measure the resistance between both ends of the Highside control harness.
Measure the resistance between both ends of the Lowside control harness.

Specification :Approx. 0Ohms




4. Is the measured resistance within specifications?