Throttle Position Sensor: Testing and Inspection
OVERALL FUNCTION CHECKUse this procedure to check the overall function of the throttle position sensor. During this check, a DTC might not be confirmed.
With Consult
(1) Turn ignition switch "ON".
(2) Select "MANU TRIG" and "HI SPEED" in "DATA MONITOR" mode with CONSULT.
(3) Select "THRTL POS SEN" and "ABSOL TH/PS" in "DATA MONITOR" mode with CONSULT.
(4) Press RECORD on CONSULT SCREEN at the same time accelerator pedal is depressed.
(5) Print out the recorded data and check the following:
- The voltage when accelerator pedal fully released is approximately 0.3 - O.7V.
- The voltage rise is linear in response to accelerator pedal depression.
- The voltage when accelerator pedal fully depressed is approximately 4V.
OR
Without Scan Tools
(1) Turn ignition switch "ON".
(2) Check the voltage between ECM terminal (23) and (43) (ground) and check the following:
- The voltage when accelerator pedal fully released is approximately 0.3 - O.7V.
- The voltage rise is linear in response to accelerator pedal depression.
- The voltage when accelerator pedal fully depressed is approximately 4V.
CIRCUIT DIAGRAM
DIAGNOSTIC PROCEDURE
COMPONENT INSPECTION
Throttle position sensor
1. Disconnect throttle position sensor harness connector.
2. Make sure that resistance between terminals (2) and (3) changes when opening throttle valve manually.
If NG, replace throttle position sensor.
To adjust it, perform "Basic Inspection".