Inspection Procedure

PREPARATION:

Disconnect the transmission wire connector.

CHECK:

Measure resistance between SLT+ and SLT- of transmission wire.

OK:

1. Resistance: 5.1 to 5.5 Ω at 20°C (68°F) 

CHECK:

Measure resistance between terminals SLT+ and body ground, and SLT and body ground of the transmission wire connector respectively.

OK:

1. Resistance: 10 kΩ or higher 

1. NG: Go to   3 
2. OK: Go to next step 

PREPARATION:

1. Connect the transmission wire connector.
2. Disconnect the ECM connector.

CHECK:

Measure resistance between terminals SLT+ and SLT- of ECM connector.

Fig 1: Identifying Terminals SLT+ And SLT- Of ECM Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

1. Resistance: 5.1 to 5.5 Ω at 20°C (68°F) 

Measure resistance between terminals SLT⁺ and body ground, and SLT^- and body ground of the ECM connector respectively.

OK:

1. Resistance: 10 kΩ or higher 

1. NG: Repair or replace the harness or connector (  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
2. OK: Replace the ECM. 

Fig 2: Checking Shift Solenoid Valve SLT

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PREPARATION:

1. Jack up the vehicle.
2. Remove the oil pan.
3. Remove the shift solenoid valve SLT.

CHECK:

Check the solenoid resistance.

Measure resistance between terminals 1 and 2 of solenoid connector.

OK:

1. Resistance: 5.1 to 5.5 Ω at 20°C (68°F) 
   Fig 3: Identifying Terminal SLT+ And SLT- Of Transmission Wire

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CHECK:

Check the solenoid operation.

Connect positive (+) lead with an 21 W bulb to terminal 1 of solenoid connector and negative (-) lead to terminal 2, then check the movement of the valve.

OK:

Fig 4: Connecting Positive (+) Lead With An 21 W Bulb To Terminal 1 Of Solenoid Connector & Negative (-) Lead To Terminal 2

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: Replace the shift solenoid valve SLT. 
2. OK: Repair or replace the transmission wire (  ATF TEMPERATURE SENSOR  ).