Operation Check

SENSOR SIGNAL CHECK (TEST MODE) (USING HAND-HELD TESTER)

NOTE:

If the ignition switch is turned from ON to ACC or LOCK during test mode, DTC of sensor check function will be erased.
During test mode, ECU records all DTC of sensor check function. By preforming sensor signal check, the codes are erased if normality is confirmed. The codes left over are the codes where abnormality was found.

Procedures for test mode:

Turn the ignition switch off.
Check that the shift lever position is at P position.
Connect the hand-held tester to the DLC3.
Operate the hand-held tester to test mode.

Fig 1: Checking ABS Warning Light Blink
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check that the ABS warning light blink.

NOTE: If the ABS warning light do not blink, inspect the ABS warning light circuit.

TERMINAL SYMBOLS TROUBLE AREA SPECIFICATIONS

Trouble area	See
ABS Warning Light	ABS WARNING LIGHT CIRCUIT (DOES NOT LIGHT UP)

Check the master cylinder pressure sensor.
1. Leaving the vehicle in a stationary condition and the brake pedal in free condition for 1 sec. or more, continue to quickly depress the brake pedal with a force of 98 N (10 kgf.cm, 22 ft.lbf) or more for 1 sec. or more.
  NOTE: At this time, ABS warning light comes on for 3 seconds.
Check the speed sensor.
1. Drive vehicle straight forward.
  When driving the vehicle at the speed of 45 km/h (28 mph) or higher for several seconds, check that the ABS warning light goes off.
  
  NOTE: The sensor check may not be completed if the vehicle has its wheel spin or its steering wheel steered during this check.
2. Stop the vehicle.
3. Read the DTCs.