Inspection Procedure

NOTE: Perform the universal trip to clear permanent DTCs (See DTC CHECK/CLEAR ).

HINT:

Using Techstream's Data List allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time.

NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Warm up the engine.
Turn the ignition switch off.
Connect Techstream to the DLC3.
Turn the ignition switch to ON and turn the Techstream on.
Enter the following menus: Powertrain / Engine and ECT / Data List.

Follow the instructions on the Techstream and read the Data List.

DATA LIST REFERENCE

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
SPD (NT)	Input turbine speed/ Min.: 0 rpm Max.: 12,750 rpm	Lock-up ON (after warming up engine): Input turbine speed (NT) equal to engine speed. Lock-up OFF (idling with shift lever on N): Input turbine speed (NT) is nearly equal to engine speed.	Data is displayed in increments of 50 rpm

HINT:

SPD (NT) is always 0 rpm while driving: Open or short in the sensor or circuit.
SPD (NT) is always more than 0 rpm and less than 300 rpm while driving the vehicle at 50 km/h (31 mph) or more:
Sensor trouble, improper installation, or intermittent connection trouble of the circuit.

INSPECT SPEED SENSOR (INSTALLATION)
1. Check the speed sensor NT installation.
  OK:
  
  Installation bolt is tightened properly and there is no clearance between the sensor and transaxle case.
  
  NG: SECURELY INSTALL SENSOR OR REPLACE SPEED SENSOR
  
  Fig 1: Checking Clearance Between Sensor And Transaxle Case
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: Go to next step

INSPECT SPEED SENSOR NT

Disconnect the B28 sensor connector from the transaxle.

Measure the resistance of the sensor.

Standard resistance

STANDARD RESISTANCE

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	560 to 680 Ω

NG: REPLACE SPEED SENSOR NT

Fig 2: Identifying Speed Sensor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

CHECK WIRE HARNESS (SPEED SENSOR - ECM)

Disconnect the B30 ECM connector.

Measure the resistance of the wire harness side connector.

Standard resistance

STANDARD RESISTANCE

Tester Connection	Condition	Specified Condition
B30-100 (NT+) - B30-123 (NT-)	20°C (68°F)	560 to 680 Ω
B30-100 (NT+) - Body ground	20°C (68°F)	10 kΩ or higher
B30-123 (NT-) - Body ground	20°C (68°F)	10 kΩ or higher

Fig 3: Identifying B30 ECM Connector

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE ECM