Inspection Procedure

1. Check if other DTCs are recorded (See DTC CHECK / CLEAR  ).

   Result 

   DTC RESULT REFERENCE
   
   

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

B: REPAIR CIRCUITS INDICATED BY OUTPUT DTCS (See  DIAGNOSTIC TROUBLE CODE CHART   ) 

A: Go to next step 

HINT:

Replace the brake pedal sub-assembly when there is a malfunction in the brake pedal load sensing switch.

1. Disconnect the brake pedal load sensing switch connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   B8-2 (FSW+) - B8-1 (GND)	Depress brake pedal	Approx. 1,000 Ω
   	Release brake pedal	Approx. 213 Ω

Fig 1: Identifying Brake Pedal Sub-Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE BRAKE PEDAL SUB-ASSEMBLY (BRAKE PEDAL LOAD SENSING SWITCH)  (See REMOVAL )

OK: Go to next step 

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.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Specified Condition
   S1-7 (FSW+) - B8-2 (FSW+)	Below 1 Ω

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

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Specified Condition
   S1-7 (FSW+) - Body ground	10 kΩ or higher

Fig 2: Identifying Skid Control ECU Connector And Brake Pedal Load Sensing Switch Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (SKID CONTROL ECU - BRAKE PEDAL LOAD SENSING SWITCH) 

OK: Go to next step 

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

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Specified Condition
   B8-1 (GND) - Body ground	Below 1 Ω

2. Connect the brake pedal load sensing switch connector.
3. Connect the skid control ECU connector.
Fig 3: Identifying Brake Pedal Load Sensing Switch Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (BRAKE PEDAL LOAD SENSING SWITCH - BODY GROUND) 

OK: REPLACE BRAKE ACTUATOR ASSEMBLY (See  REMOVAL   )