Inspection Procedure

WARNING: This page is about a different variant/trim than selected.

Check transmission wire.
PREPARATION:

Disconnect the transmission wire connector.

CHECK:

Measure resistance between S1 of transmission wire connector and body ground.

OK:
1. Resistance: 11 to 15 Ω at 20°C (68°F)
1. NG: Go to 3
2. OK: Go to next step
Measure resistance between terminal S1 of ECM connector and body ground.
PREPARATION:
1. Connect the transmission wire connector.
2. Disconnect the ECM connector.
CHECK:

Measure resistance between terminals S1 of ECM connector and body ground.

OK:
1. Resistance: 11 to 15 Ω at 20°C (68°F)
1. NG: Repair or replace the harness or connector ( HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
  
  Fig 1: Identifying Terminal S1 Of ECM Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. OK: Replace the ECM.
Check shift solenoid valve S1 (No. 1).
PREPARATION:
1. Jack up the vehicle.
2. Remove the oil pan.
3. Remove the shift solenoid valve S1 (No. 1).
CHECK:

Measure the resistance between the solenoid connector terminal and the body ground.

OK:
1. Resistance: 11 to 15 Ω at 20°C (68 °F)
CHECK:

Connect the battery positive lead to the solenoid connector terminal and the battery negative lead to the solenoid body ground.

Fig 3: Connecting Battery Positive Lead To Solenoid Connector Terminal & Battery Negative Lead To Solenoid Body Ground
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Solenoid sounds operation noise.
1. NG: Replace the shift solenoid valve S1 (No. 1).
2. OK: Repair or replace the transmission wire ( ATF TEMPERATURE SENSOR ).