Inspection Procedure

1. Check if a CAN communication system DTC is output (See DIAGNOSIS SYSTEM ).

Result 

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

A: Go to next step 

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

   OK: 

   The connector is securely connected. 

NG: CONNECT CONNECTOR TO ECU CORRECTLY 

OK: Go to next step 

1. Check the battery voltage.

   Standard Voltage: 

   11 to 14 V 

Result 

B: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2AZ-FE)  (See PROBLEM SYMPTOMS TABLE )

C: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2ZR-FE)  (See PROBLEM SYMPTOMS TABLE )

A: 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 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Condition	Switch Condition	Specified Condition
   A66-30 (CSW) - Body ground	VSC OFF switch OFF (Not pressed)	10 kΩ or higher

NG:  GO TO STEP  6

Fig 1: Identifying Skid Control ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Reconnect the skid control ECU connector.
2. Perform the Active Test of the combination meter (meter CPU) using the Techstream (See DATA LIST / ACTIVE TEST ).
3. Check the combination meter.

   OK: 

   The VSC OFF indicator light turns on or off in accordance with the Techstream operation. 

   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 COMBINATION METER )

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 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Switch Condition	Specified Condition
   6 (+) - 3 (E)	Switch is pushed in	Below 25 Ω
   6 (+) - 3 (E)	Switch is not pushed in	10 kΩ or higher

NG: REPLACE VSC OFF SWITCH  (See VSC OFF SWITCH (W/ VSC) )

Fig 2: Inspecting VSC OFF Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

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

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   A66-30 (CSW) - E47-6 (+)	Always	Below 1 Ω
   A66-30 (CSW) - Body ground	Always	10 kΩ or higher
   E47-3 (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 ).

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE BRAKE ACTUATOR ASSEMBLY  (See REMOVAL )