DTC 14

CIRCUIT DIAGRAM





USING MULTI-USE TESTER

Steps 1-3:

HARNESS INSPECTION


OPERATION

The throttle position sensor is a variable resistor whose movable contact rotates coaxially with the throttle valve shaft thus sensing the throttle valve opening.

As the throttle valve shaft rotates, the sensor output Voltage changes. Based on the signal the sensor generates, the engine control unit detects the throttle valve opening and determines the engine operation mode (acceleration or deceleration). The relationship between the throttle opening and the output Voltage is as shown above.


TROUBLESHOOTING HINTS

When short-circuit or wire breakage occurs in the TPS circuit, hesitation, deceleration shock, shift shock in the A/T vehicle,etc. may be often felt.