Test Mode Procedure

1. Release the parking brake.
   NOTE: Before releasing the parking brake, move the shift lever to P (for automatic transaxle model) or set chocks (for manual transaxle model) to prevent the vehicle from rolling.

   HINT:

   When the parking brake is applied or the brake fluid level is low, the brake warning light comes on.

2. When the ignition switch is turned to ON, check that the ABS warning and brake warning lights come on for approximately 3 seconds.
   Fig 1: Identifying ABS Warning And Brake Warning Lights

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   • If the skid control ECU stores any DTCs, the ABS warning light will come on.
   • If the indicator remains on or does not come on, proceed to troubleshooting for the light circuits listed below.
     ABS WARNING LIGHT TROUBLE AREA CHART
     
     

     Trouble Area	See procedure
     ABS warning light circuit (Remains on)	ABS WARNING LIGHT REMAINS ON
     ABS warning light circuit (Does not come on)	ABS WARNING LIGHT DOES NOT COME ON
     Brake warning light circuit (Remains on)	BRAKE WARNING LIGHT REMAINS ON
     Brake Warning light circuit (Does not come on)	BRAKE WARNING LIGHT DOES NOT COME ON

HINT:

• If the ignition switch is turned from ON to ACC or OFF during Test Mode (signal check), DTCs recorded during the signal check function will be cleared.
• During Test Mode (signal check), the skid control ECU records all DTCs of the signal check function. By performing the Test Mode (signal check), the codes are cleared if a normal condition is confirmed. The remaining codes are the codes where an abnormality was found.

1. Procedure to enter Test Mode.
   1. Turn the ignition switch off.
   2. Check that the steering wheel is in the straight-ahead position.
   3. for Automatic transaxle: Check that the shift lever is in P and apply the parking brake.
   4. for Manual transaxle: Check that the shift lever is in neutral and apply the parking brake.
   5. Connect the Techstream to the DLC3.
   6. Turn the ignition switch to ON.
   7. Turn the tester on.
   8. Enter the following menus: Chassis/ABS/VSC/ TRC/Signal Check.
   9. Check that the ABS warning light comes on for several seconds and then blinks in Test Mode.

      HINT:

      If the ABS warning light does not blink, inspect the TS and CG terminal circuit and ABS warning light circuit.

      ABS WARNING LIGHT TROUBLE AREA CHART
      
      

      Trouble Area	See procedure
      ABS warning light circuit (Remains on)	ABS WARNING LIGHT REMAINS ON
      ABS warning light circuit (Does not come on)	ABS WARNING LIGHT DOES NOT COME ON
      TS and CG terminal circuit	TS AND CG TERMINAL CIRCUIT

      Fig 2: Identifying Blinking Pattern (Normal System Code)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Check the speed sensor signal.
   1. Drive the vehicle straight-ahead.

      Accelerate the vehicle to a speed of 45 km/h (28 mph) or more for several seconds and check that the ABS warning light goes off.

      • The sensor check may not be completed if wheels pin occurs.
      • The ABS warning light blinks when the sensor check has been completed and the brake pedal is depressed.
      • The ABS warning light comes on immediately after a malfunction has been detected during the speed sensor check.
2. Stop the vehicle.
   Fig 3: Identifying Blinking Pattern (Speed Sensor Check)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002