A/T Control Component Check

The TPS 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 TPS changes. The ECM detects the throttle valve opening based on voltage change. Refer to FUEL SYSTEM .

1. Remove the oil temperature sensor.
2. Measure the resistance between terminals 1 and 2 of the oil temperature sensor connector.

STANDARD VALUE : 

Fig 1: Oil Temperature Sensor Resistance Table

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Fig 2: Checking Oil Temperature Sensor Resistance

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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 2-3 (1 turn equals 4 pulses).

Fig 3: Identifying Vehicle Speed Sensor Connector Terminals & Checking Resistance

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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 and disconnected from the battery.
4. If there is a problem, replace the A/T control relay.

Fig 4: A/T Control Relay Continuity Table

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Fig 5: Checking A/T Control Relay Continuity

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

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

   STANDARD VALUE : 

   Fig 7: Solenoid Valves Standard Value Table

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   Fig 8: Checking Solenoid Valve Resistance

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4. If the resistance is outside the standard value, replace the solenoid valve.
   NOTE: Resistance of the solenoid valve connector.