Test Mode Procedure

1. Release the parking brake.
   NOTE: Before releasing the parking brake, move the shift lever to the P position for safety (AT model) or set the chocks to hold the vehicle for safety (MT model).

   HINT:

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

2. When the ignition switch is turned on (IG), check that the ABS warning light comes on for approximately 3 seconds.

   HINT:

   • If the skid control ECU stores any DTCs, the ABS and BRAKE warning lights come on.
   • If the indicator remains on or does not come on, proceed to troubleshooting for the light circuits listed below.
     Fig 1: Identifying Warning Lights And Indicator Lights

     Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TROUBLE AREA CHART
   
   

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

HINT:

If the ignition switch is turned from on (IG) to on (ACC) or off during Test Mode (signal check), DTCs recorded during the signal check function will be erased.

1. Procedure to enter Test Mode.
   1. Turn the ignition switch off.
   2. Connect techstream to the DLC3.
   3. Check that the steering wheel is centered and move the shift lever to the P position (for Automatic Transaxle) or apply the parking brake (Manual Transaxle).
   4. Turn the ignition switch on (IG).
   5. Set Techstream to Test Mode (select "Signal Check").

      HINT:

      Refer to the Techstream operator's manual for further details.

   6. 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 ABS warning light circuit.

      TROUBLE AREA CHART
      
      

      Trouble Area	See procedure
      ABS warning light (Does not come on)	ABS WARNING LIGHT DOES NOT COME ON

2. Check the sensor signal.
   1. Drive the vehicle straight ahead.

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

      HINT:

      • The sensor check may not be completed if wheel spin occurs, or if the steering wheel is turned during this check.
      • The ABS warning light goes off when the sensor signal 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 signal check.
        Fig 2: Identifying Blinking Pattern

        Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Stop the vehicle.
   NOTE:

   • The speed sensor check may not be completed if the speed sensor check is started while turning the steering wheel or spinning the wheels.
   • If the signal check has not been completed, the ABS warning light will blink while driving and the ABS system will not operate.
4. Read the DTC(s) by following the tester screen.
   NOTE:

   • If only the DTCs are displayed, repair the malfunction area and clear the DTCs.
   • If the DTCs or Test Mode codes (DTC of signal check function) are displayed, repair the malfunction area, clear the DTCs and perform the Test Mode inspection.

   HINT:

   See the list of DTCs (See step  4 for procedure "A").

HINT:

If the ignition switch is turned from on (IG) to on (ACC) or off during Test Mode (signal check), DTCs recorded during the signal check will be erased.

1. Procedure for Test Mode.
   1. Turn the ignition switch off.
   2. Check that the steering wheel is centered and move the shift lever to the P position (Automatic Transaxle) or apply the parking brake (Manual Transaxle).
   3. Using SST, connect terminals TS and CG of the DLC3.

      SST 09843-18040 

   4. Turn the ignition switch on (IG).
      Fig 3: Identifying DLC3 Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   5. 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.

      TROUBLE AREA CHART
      
      

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

2. Check the sensor signal.
   1. Drive the vehicle straight ahead.

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

      HINT:

      • The sensor check may not be completed if wheel spin occurs, or if the steering wheel is turned during this check.
      • The ABS warning light goes off when the sensor signal 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 signal check.
        Fig 4: Identifying ABS Warning Light Blinking Pattern

        Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Stop the vehicle.
   NOTE:

   • The speed sensor check may not be completed if the speed sensor check is started while turning the steering wheel or spinning the wheels.
   • If the signal check has not been completed, the ABS warning light will blink while driving and the ABS system will not operate.
4. Using SST, connect terminals TC and CG of the DLC3.

   SST 09843-18040 

   Fig 5: Identifying DLC3 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Count the number of blinks of the ABS warning light.
   Fig 6: Identifying Blinking Pattern

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE:

   • If only the DTCs are displayed, repair the malfunction area and clear the DTCs.
   • If the DTCs or Test Mode codes (DTC of signal check function) are displayed, repair the malfunction area, clear the DTCs and perform the Test Mode inspection.

   HINT:

   • If more than 1 malfunction is detected at the same time, the lowest numbered code will be displayed first.
   • See the list of DTCs  4.
6. After performing the check, disconnect the SST from terminals TS and CG, and TC and CG of the DLC3, and turn the ignition switch off.
7. Turn the ignition switch on (IG) to cancel the test mode.

   HINT:

   • If the ignition switch is not turned on (IG) after the SST is removed from the DLC3, the previous Test Mode will continue.
   • If the ignition switch is turned on (IG) with terminals TS and CG shorted, the previous Test Mode will continue.

DTC of Test Mode (Signal Check): 

HINT:

The codes in this table are output only in Test Mode (signal check).