Toyota Avalon V6-3.5L (2GR-FE) Manufacturer Code Page 983

Toyota Avalon V6-3.5L (2GR-FE) Manufacturer Code Page 983

(1) Disconnect the rear speed sensor connector.

(2) Connect the oscilloscope to terminals 1 and 2 of the rear speed sensor.

(3) Check that a waveform is output when the tires are rotated.

OK:

A waveform as shown in the figure should be output.

HINT

* As vehicle speed (wheel rotation speed) increases, the width of the waveform narrows and the fluctuation in the output voltage

becomes greater.

* When noise is identified in the waveform on the oscilloscope, error signals are generated due to rotor scratches, looseness or

foreign matter attached to the speed sensor.

NG -- CLEAN OR REPLACE SPEED SENSOR AND SENSOR ROTOR

OK -- Continue to next step.

5. RECONFIRM DTC

(a) Clear the DTC See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Reading and

Clearing Diagnostic Trouble Codes/DTC Check / Clear (to 12/2010).

(b) Start the engine.

(c) Drive the vehicle at the speed of 32 km/h (20 mph) or more for 60 seconds or more.

(d) Check that the same DTC is recorded See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and

Inspection/Reading and Clearing Diagnostic Trouble Codes/DTC Check / Clear (to 12/2010).

Result:

HINT

* These DTCs may be stored due to a malfunction in the connector terminal connection, etc.

* If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the

next step See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Symptom

Related Diagnostic Procedures/Vehicle Stability Control System/Problem Symptoms Table (to 12/2010).

B -- INSPECT REAR SPEED SENSOR INSTALLATION

A -- END

6. INSPECT REAR SPEED SENSOR INSTALLATION

(a) Check the rear speed sensor installation.