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W/Harness Inspection





Engine Control

P2017 Intake Manifold Runner Position Sensor/Switch Circuit High (Bank 1) - 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?






Signal Circuit Inspection

Check short to battery in harness
1. IG "OFF" and disconnect VCMA connector and ECM connector.
2. IG "ON".
3. Measure voltage between VCMA feedback signal of VCMA harness connector and chassis ground.

Specification : Approx. 0 V








4. Is the measured voltage within specification?





Check open in harness
1. IG "OFF" and disconnect VCMA connector and ECM connector.
2. Measure resistance between VCMA feedback signal terminal of VCMA harness connector and VCMA feedback signal terminal of ECM harness connector.

Specification : Approx. below 1 Ohms.








3. Is the measured resistance within specification?






Ground Circuit Inspection

Check open in harness
1. IG "OFF" and disconnect VCMA connector.
2. IG "ON".
3. Measure voltage between VCMA power terminal of VCMA harness connector and chassis ground. (Measurement "A")
4. Measure voltage between VCMA power and VCMA ground terminals of VCMA harness connector. (Measurement "B")

Specification : Voltage difference between measurement "A" and "B" is below 200 mV.
















5. Is the measured voltage within specification?