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 FUEL SYSTEM (G6BA-GSL 2.7) ).

Fig 1: Identifying Throttle Sensor

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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 

Fig 2: Measuring Resistance Between Terminals

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

Fig 3: Measuring Voltage Between VSS Terminals

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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: Testing A/T Control Relay

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1. Remove the valve body cover.
2. Disconnect the connectors of each solenoid valve.
   Fig 5: Identifying Solenoid Valve Connectors

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3. Measure the resistance between terminals 1 and 2 of each solenoid valve.
   SOLENOID VALVE RESISTANCE
   
   

   Name	Resistance
   Damper clutch solenoid valve	2.7 ~ 3.4ohm (at 20°C)
   Low and reverse solenoid valve
   Second solenoid valve
   Underdrive solenoid valve
   Overdrive solenoid valve

   Fig 6: Measuring Resistance Between Solenoid Valve Terminals 1 And 2

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4. If the resistance is outside the standard value, replace the solenoid valve.
   NOTE: Resistance of the solenoid valve connector.
   RESISTANCE OF THE SOLENOID VALVE CONNECTOR
   
   

   Terminal No.	Name	Resistance
   7 & 10	Damper clutch solenoid valve	2.7 - 3.4ohm (at 20°C)
   10 & 6	Low and reverse solenoid valve
   9 & 4	Second solenoid valve
   9 & 3	Underdrive solenoid valve
   9 & 5	Overdrive solenoid valve

   Fig 7: Identifying Solenoid Valve Connector

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