Inspection Procedure

1. Check if a CAN communication system DTC is output (See DTC CHECK / CLEAR  ).

   Result 

   DTC RESULT REFERENCE
   
   

   Result	Proceed to
   CAN communication system DTC is not output	A
   CAN communication system DTC is output	B

B: INSPECT CAN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

A: Go to next step 

1. Check if a multiplex communication system DTC is output (See DTC CHECK/CLEAR ).

   Result 

   DTC RESULT REFERENCE
   
   

   Result	Proceed to
   Multiplex communication system DTC is not output	A
   Multiplex communication system DTC is output	B

B: INSPECT MULTIPLEX COMMUNICATION SYSTEM  (See DTC CHECK/CLEAR )

A: Go to next step 

1. Check if the skid control ECU connector is securely connected.

   OK: 

   The connector should be securely connected. 

NG: CONNECT CONNECTOR TO ECU CORRECTLY 

OK: Go to next step 

1. Check the battery voltage.

   Standard voltage: 

   11 to 14 V 

NG: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY  (See ON-VEHICLE INSPECTION )

OK: Go to next step 

1. Disconnect the skid control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Condition	Switch Condition	Specified Condition
   S1-43 (CSW) - Body ground	VSC OFF Switch OFF (Not pressed)	10 kΩ or higher

Fig 1: Identifying Skid Control ECU (CSW Terminal)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG:  Go to step  7

OK: Go to next step 

1. Connect the intelligent tester to the DLC3.
2. Perform Active Test of the combination meter (meter CPU) using the intelligent tester (See DATA LIST / ACTIVE TEST ).

   OK: 

   The VSC OFF indicator light blinks or turns off in accordance with the intelligent tester. 

   HINT:

   If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See PROBLEM SYMPTOMS TABLE  ).

NG: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL )

OK: REPLACE BRAKE ACTUATOR ASSEMBLY (See  REMOVAL   ) 

1. Disconnect the VSC OFF switch connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   2 (+) - 1 (E)	Switch is pushed in	Below 1 Ω
   2 (+) - 1 (E)	Switch is not pushed in	10 kΩ or higher

Fig 2: Identifying VSC Off Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE VSC OFF SWITCH (See  REMOVAL   ) 

OK: Go to next step 

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

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   S1-43 (CSW) - V17-2 (+)	Always	Below 1 Ω
   S1-43 (CSW) - Body ground	Always	10 kΩ or higher
   V17-1 (E) - Body ground	Always	Below 1 Ω

   HINT:

   If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (See PROBLEM SYMPTOMS TABLE  ).

   Fig 3: Identifying Skid Control ECU And VSC OFF Switch Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH) 

OK: REPLACE BRAKE ACTUATOR ASSEMBLY (See  REMOVAL   )