A/T Control Component Check

The TP Sensor is a variable resistor type that rotates with the throttle body shaft to sense the throttle valve angle. As the throttle shaft rotates, the output voltage of the TP Sensor changes. The ECM detects the throttle valve opening based on voltage change. Refer to THROTTLE POSITION (TP) SENSOR .

1. Remove the oil temperature sensor.
2. Measure the resistance between terminals No 1 and No.2 of the oil temperature sensor connector.
   1. Standard value:

Fig 1: Oil Temperature Sensor Standard Value Table

Fig 2: Checking Oil Temperature Sensor

1. Remove the vehicle speed sensor and connect a 3-10 k/ohms 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).

Fig 3: Checking Vehicle Speed Sensor

1. Remove the A/T control relay.
2. Use jumper wires 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 A/T 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.

Fig 4: A/T Control Relay Inspection Table

Fig 5: Checking A/T Control Relay

1. Remove the valve body cover.
2. Disconnect the connectors of each solenoid valve.
   Fig 6: Identifying Solenoid Valves

   
3. Measure the resistance between terminals 1 and 2 of each solenoid valve.
   1. Standard value:
   Fig 7: Solenoid Valves Standard Value Table

   
   Fig 8: Checking Solenoid Valve Resistance

   
4. If the resistance is outside the standard value, replace the solenoid valve.

Fig 9: Identifying Solenoid Valve Terminals & Resistance Specification

Fig 10: Identifying Solenoid Valve Connector Terminals