W/Harness Inspection

Engine

Engine Control - P0463 Fuel Level Sensor A Circuit High Input - 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

1. Check Voltage
(1) IG "OFF" and disconnect Instrument cluster connector.
(2) IG "ON" & ENG "OFF"
(3) Measure voltage between terminal 4 of Fuel Sender & Fuel Pump Motor harness connector and chassis ground.

Approx. 0 V




(4) Is the measured voltage within specification?





2. Check open in harness
(1) IG "OFF" and disconnect Instrument cluster connector and Fuel Sender & Fuel Pump Motor connector.
(2) Measure resistance between terminal 4 of Fuel Sender & Fuel Pump Motor harness connector and terminal 5 of Instrument cluster.

Specification : Below 1 Ohms




(3) Is the measured resistance within specification?






Ground Circuit inspection

1. Check open in harness
(1) IG "OFF" and disconnect Instrument cluster connector and Fuel Sender & Fuel Pump Motor connector.
(2) Measure resistance between terminal 5 of Fuel Sender & Fuel Pump Motor harness connector and terminal 2 of Instrument cluster.

Specification : Below 1 Ohms




(3) Is the measured resistance within specification?