W/Harness Inspection

Engine Control
P2229 Barometric Pressure Circuit High 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 BPS connector.
2. IG "ON".
3. Measure the voltage between power terminal of BPS harness connector and ground.

Specification :Approx. 5V




4. Is the measured voltage within specification?






Ground Circuit Inspection

Check voltage
1. IG "OFF" and disconnect BPS connector and then IG "ON".
2. Measure voltage between signal terminal of BPS harness connector and chassis ground (Measurement "A")
3. Measure voltage between signal and ground terminals of BPS harness connector (Measurement "B")

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








4. Is the measured voltage within specification?






Signal Circuit Inspection

Check short to battery in harness
1. IG "OFF".
2. Disconnect BPS and PCM connector.
3. Measure resistance between signal and power terminals of BPS harness connector.

Specification :Infinite




4. Is the measured resistance within specification?