Sensor Check (Test Mode)

Speed Sensor / C1271/71 - C1283/83:

SPEED SENSOR SIGNAL CHECK (TEST MODE)

HINT: If the ignition switch is turned from ON to ACC or LOCK during test mode, DTC will be erased.





In case of using LEXUS hand-held tester:
Check the sensor signal.

1. Hook up the LEXUS hand-held tester to the DLC3.
3. Start the engine.
4. Check that the ABS warning light blinks.

HINT: If the ABS warning light does not blink, inspect the ABS warning light circuit and Ts circuit.

5. Keep the vehicle in the stationary condition on the flat place for 6 sec. or more.
6. Shift the transfer lever in L4 position and turn the center diff. lock switch ON.
7. Shift the transfer lever back.

8. Leaving the vehicle in the stationary condition and the brake pedal in free condition for 1 sec. or more, continue to depress the brake pedal with 98 N (10 kg, 22 lb) of force or more for 1 sec. or more.
9. Leaving the vehicle in the stationary condition, depress the brake pedal with 980 N (100 kg, 221 lb) of force or more quickly.

HINT: At this time, the ABS warning light comes on for 3 sec.

10. Drive vehicle straight forward.
When driving the vehicle with the speed faster than 45 km/h (28 mph) for several seconds, check that the ABS warning light comes off.

11. Read the DTC by following the prompts on the tester screen.

HINT: Please refer to the LEXUS hand-held tester operator's manual for further details.