W/Harness Inspection

Engine Control
P0272 Cylinder 4-Injector Circuit Balance (Load Drop is Detected) - 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 injector connector and ECM connector.
3. Measure the resistance between LOW SIDE, HIGH SIDE terminal of injector harness connector.

Specification :Infinite




4. Is the measured resistance within specification ?