Inspection Procedure

NOTE: When replacing the brake actuator assembly, perform zero point calibration (See CALIBRATION ).

CHECK CAN COMMUNICATION SYSTEM

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

Result

DTC OUTPUT RESULT

Result	Proceed to
DTC is not output	A
DTC is output	B

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

A: Go to next step

CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED
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

CHECK BATTERY

Check the battery voltage.

Standard Voltage:

11 to 14 V

Result

RESULT CHART

Result	Proceed to
OK	A
NG (for 2AZ-FE)	B
NG (for 2ZR-FE)	C

B: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2AZ-FE) (See ON-VEHICLE INSPECTION )

C: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2ZR-FE) (See ON-VEHICLE INSPECTION )

A: Go to next step

INSPECT SKID CONTROL ECU (CSW TERMINAL)

Disconnect the skid control ECU connector.

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

Standard Resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Condition	Switch Condition	Specified Condition
A38-30 (CSW) - Body ground	VSC OFF switch OFF (Not pressed)	10 kΩ or higher

NG: Go to step 6

Fig 1: Identifying Terminal CSW Of A38 Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

INSPECT COMBINATION METER ASSEMBLY
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 )

INSPECT VSC OFF SWITCH

Disconnect the VSC OFF switch connector.

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

Standard Resistance

RESISTANCE SPECIFIED CONDITIONS

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 REMOVAL )

Fig 2: Inspecting VSC OFF Switch

OK: Go to next step

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH)

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

Standard Resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Condition	Specified Condition
A38-30 (CSW) - E59-6 (+)	Always	Below 1 Ω
A38-30 (CSW) - Body ground	Always	10 kΩ or higher
E59-3 (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

OK: REPLACE BRAKE ACTUATOR ASSEMBLY (See REMOVAL )