Inspection Procedure

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

Check speed sensor (NT).
PREPARATION:

Remove the NT speed sensor from the transaxle.

CHECK:
1. Measure resistance between terminals 1 and 2 of speed sensor.
  
  Fig 1: Checking Speed Sensor (NT)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check voltage between terminals 1 and 2 of the speed sensor when a magnet is put close to the front end of the speed sensor then taken away quickly.
OK:
1. (a) Resistance: 560 to 680 Ω at 20°C (68°F)
2. (b) Voltage is generated intermittently.
NOTE: The generated voltage is extremely low.
1. NG: Replace the speed sensor (NT) (See DIRECT CLUTCH SPEED SENSOR ).
2. OK: Go to next step
Check harness and connector between ECM and speed sensor (NT).
PREPARATION:
1. Connect the speed sensor connector.
2. Disconnect the ECM connector.
CHECK:

Measure the resistance between NT+ and NT- of the ECM connector.

Fig 2: Identifying Terminal NT+ And NT- Of ECM Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:
1. Resistance: 560 to 680 Ω at 20 C (68 F)
CHECK:

Measure the resistance between body ground and NT+, and body ground and NT- 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.