Inspection of Electronic Control Components
ELC-4A/T CONTROL COMPONENT CHECKPULSE GENERATOR A CHECK
1. Disconnect the pulse generator A connector
2. Measure the resistance between the pulse generator A side connector terminals 1 and 2.
Standard value: 330-390 Ohms [at 20°C (68°F)]
3. If the resistance is outside the standard value, replace the pulse generator assembly.
PULSE GENERATOR B CHECK
1. Disconnect the pulse generator B connector.
2. Measure the resistance between the pulse generator B side connector terminals 3 and 4.
Standard value: 330-390 Ohms [at 20°C (68°F)]
3. If the resistance is outside the standard value, replace the pulse generator assembly.
KICKDOWN SERVO SWITCH CHECK
1. Disconnect the kickdown servo switch connector.
2. Remove the kickdown servo switch.
3. Check that there is continuity between kickdown servo switch side connector terminal 1 and the metal part inside the kickdown servo switch.
4. If there is no continuity, replace the kickdown servo switch.
5. If continuity exists, push in on servo switch. Check that no continuity exists between terminal 1 and the metal part inside the servo switch.
6. If continuity exists, replace the kickdown servo switch.
OIL TEMPERATURE SENSOR CHECK
1. Disconnect the oil temperature sensor connector.
2. Measure the resistance between the oil temperature sensor side connector terminals 1 and 2, and check that the values are as shown in the table below.
Standard Values
3. If the values are outside the standard values, replace the oil temperature sensor.
VEHICLE SPEED SENSOR CHECK
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)
TORQUE CONVERTER CLUTCH SOLENOID CHECK
1. Disconnect the TCC solenoid connector.
2. Measure the resistance between the TCC solenoid side connector terminal 2 and the body ground.
Standard value: Approximately 13 Ohms [at 20°C (68°F)]
3. If the resistance is outside the standard value, replace the solenoid valve assembly.
PRESSURE CONTROL SOLENOID VALVE (PCSV) CHECK
1. Disconnect the PCSV connector.
2. Measure the resistance between the PCSV side connector terminal 1 and the body ground.
Standard value: Approximately 3 Ohms [at 20°C (68°F)]
3. If the resistance is outside the standard value, replace the solenoid valve assembly.
SHIFT CONTROL SOLENOID VALVE A (SCSV-A) CHECK
1. Disconnect the SCSV-A connector.
2. Measure the resistance between the SCSV-A side connector terminal 3 and the body ground.
Standard value: Approximately 22 Ohms [at 20°C (68°F)]
3. If the resistance is outside the standard value, replace the solenoid valve assembly.
SHIFT CONTROL SOLENOID VALVE B (SCSV-B) CHECK
1. Disconnect the SCSV-B connector.
2. Measure the resistance between the SCSV-B side connector terminal 4 and the body ground.
Standard value: Approximately 22 Ohms [at 20°C (68°F)]
3. If the resistance is outside the standard value, replace the solenoid valve assembly.