W/Harness Inspection

P0452 Evaporative Emission System-Pressure Sensor Low Input

Inspection/Repair - W/Harness Inspection

Power Circuit Inspection

1. Ignition "OFF"
2. Disconnect FTPS connector.
3. Ignition "ON" & Engine "OFF"
4. Measure voltage between power terminal of the FTPS harness connector and chassis ground.

Specification :Approx. 5 V




5. Is voltage within the specification?






Signal Circuit Inspection

1. Ignition "ON" & Engine "OFF"
2. Measure voltage between signal terminal of the FTPS harness connector and chassis ground.

Specification :Approx. 5 V




3. Is voltage within the specification?






Terminal and connection inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) 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?