Inspection Procedure

HINT:

If C1249/49 is output, repair it before repairing C1267/67 based on the flow below.

1. INSPECT BRAKE PEDAL SUB-ASSEMBLY 
   Fig 1: Inspecting Brake Pedal Sub-Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE:

   • Do not remove the brake pedal load sensing switch from the brake pedal sub-assembly.
   • When there is a malfunction in the brake pedal load sensing switch, replace the brake pedal sub-assembly.
   1. Disconnect the brake pedal load sensing switch connector.
   2. Measure the resistance according to the value(s) in the table below.

      Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART
      
      

      Tester Connection	Condition	Specified Condition
      A46-2 (FSW+) - A46-1 (GND)	Brake pedal depressed	Approx. 1 kΩ
      A46-2 (FSW+) - A46-1 (GND)	Brake pedal released	Approx. 213 Ω

   NG: REPLACE BRAKE PEDAL SUB-ASSEMBLY 

   OK: Go to next step 

2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU TO BRAKE PEDAL LOAD SENSING SWITCH) 
   1. Disconnect the skid control ECU connector and the brake pedal load sensing switch connector.
   2. Measure the resistance according to the value(s) in the table below.

      Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART
      
      

      Tester Connection	Specified Condition
      A44-7 (FSW+) - A46-2 (FSW+)	Below 1 Ω

   3. Measure the resistance according to the value(s) in the table below.

      Resistance 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART
      
      

      Tester Connection	Specified Condition
      A6-7 (FSW+) - Body ground	10 kΩ or higher

   Fig 2: Identifying Skid Control ECU And Brake Pedal Load Sensing Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (FSW+ CIRCUIT) 

   OK: Go to next step 

3. READ VALUE OF INTELLIGENT TESTER (BRAKE PEDAL LOAD SENSING SWITCH) 
   1. Connect the intelligent tester to the DLC3.
   2. Start the engine.
   3. Select the DATA LIST mode on the intelligent tester.

      DATA LIST: ABS/VSC 

      NORMAL CONDITION CHART
      
      

      Item (Display)	Measurement Item / Range (Display)	Normal Condition
      BRK PEDAL SW	Brake pedal load sensing switch / ON or OFF	ON: Depressed brake pedal OFF: Released brake pedal

   4. Read the value of the brake pedal load sensing switch displayed on the intelligent tester when depressing and releasing the brake pedal.

   OK 

   DISPLAY CONDITION REFERENCE CHART
   
   

   Condition	Display
   Brake pedal depressed	ON
   Brake pedal released	OFF

   HINT:

   It is suspected that the DTCs were output due to a bad connection of the connector terminal.

   NG: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY 

   OK: END