Diesel Data: Automotive Repair

Component Tests

SPEED SENSOR SIGNAL CHECK (TEST MODE)




a. Hook up the TOYOTA hand-held tester to the DLC3.
b. Start the engine.
c. Drive vehicle faster than 45 km/h (28 mph) for several seconds.

HINT: There is a case that the sensor check is not completed if the vehicle has its wheels spined or its steering wheel steered during this check.

d. Read the DTC, from TOYOTA hand-held tester screen.

HINT: See the list of DTC shown.
Please refer to the TOYOTA hand-held tester operator's manual for further details.

C1271/71 - C1278/78:




DTC of speed sensor check function