W/Harness Inspection

Engine

Engine Control - P2138 Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation - 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?
YES
>Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
>Go to " Power Circuit Inspection " procedure.

Power Supply Circuit Inspection

Check voltage
1. IG "OFF" and disconnect APS connector.
2. IG "ON" & ENG "OFF"
3. Measure voltage between APS 1 (2) power terminal of APS harness connector and chassis ground.
A. Specification : Approx. 5 V




4. Is the measured voltage within specification?
YES
> Go to "Signal Circuit Inspection" procedure.
NO
> Repair or replace as necessary and then, go to "Signal Circuit Inspection" procedure.

Signal Circuit Inspection

Check short in harness
1. IG "OFF" and disconnect APS connector and PCM connector.
2. Measure resistance between APS 1 signal and APS 2 signal terminals of APS harness connector.
A. Specification : Infinite




3. Is the measured resistance within specification?
YES
> Go to "Component Inspection" procedure.
NO
> Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.