W/Harness Inspection

Engine Control
P0193 Fuel Rail Pressure Sensor Circuit High Input - 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?






Signal Circuit Inspection

Check Open in signal circuit
1. IG KEY "OFF".
2. Disconnect FPS connector.
3. IG KEY "ON" & ENG "OFF".
4. Measure the voltage between signal terminal of FPS harness connector and chassis ground.

Specification :Approx 5V




5. Is the measured voltage within specification?






Ground Circuit Inspection

Check open in ground circuit
1. IG KEY "OFF".
2. Disconnect FPS connector.
3. Measure the resistance between sensor terminal of FPS harness connector and chassis ground.

Specification :Below 1Ohms




4. Is the measured resistance within specification?