A/T Control Component Check

A/T CONTROL COMPONENT CHECK





1. THROTTLE POSITION SENSOR CHECK.
1) Disconnect the throttle position sensor connector.
2) Measure the resistance between the rattle position sensor side connector terminal 2 and terminal 3.
Standard value: 1.6 - 2.4 k Ohms
3) Measure the resistance between the rattle position sensor side connector terminal 1 and terminal 3.





Normal condition:

Throttle valve slowly open until fully open from the idle position Changes smoothly in proportion to the opening angle of the throttle valve

4) If the resistance is outside the standard value, or if it doesn't change smoothly, replace the throttle position sensor.





2. OIL TEMPERATURE SENSOR CHECK
1) Remove the oil temperature sensor.
2) Measure the resistance between terminals No.1 and No.2 of the oil temperature sensor connector.





Standard value:





3. VEHICLE SPEED SENSOR CHECK
1) Remove the vehicle speed sensor and connect 3-10 KQ resistance as shown in the illustration.
2) Turn the shaft of the vehicle speed sensor and check that there is voltage between terminals 2-3 (1 turn=4 pulses).





4. A/T CONTROL RELAY CHECK
1) Remove the AIT control relay.
2) Use jumperwires to connect A/T control relay terminal (2) to the battery (-) terminal and terminal (4) to the battery (+) terminal.





3) Check the continuity between terminal (1) and terminal (3) of the AIT control relay when the jumper wires are connected to and disconnected from the battery.

4) If there is a problem, replace the A/T control relay.





5. SOLENOID VALVE CHECK
1) Disconnect the solenoid valve connector





Inspection