W/Harness Inspection

Engine Control
P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input - Inspection/Repair:_: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

Check voltage
1. IG "OFF" and Disconnect MAPS connector.
2. IG "ON".
3. Measure voltage between power terminal of MAPS harness connector and chassis ground.

Specification :Approx. 5V




4. Is the measured voltage within specification ?






Signal Circuit Inspection

Check short to ground in harness
1. IG "OFF".
2. Disconnect MAPS and PCM connector.
3. Measure the resistance between signal terminal of MAPS harness connector and ground.

Specification :Infinite




4. Is the measured resistance within specification ?





Check open in harness
1. IG "OFF" and disconnect MAPS and PCM connector.
2. Measure resistance between signal terminal of MAPS harness connector and MAPS signal terminal of PCM harness connector.

Specification :Approx. below 1Ohms.




3. Is the measured resistance within specification ?