Inspection Procedure

CHECK CAN COMMUNICATION SYSTEM

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

Result

RESULT CHART

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 2GR-FE)	B
NG (for 1AR-FE)	C

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

C: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 1AR-FE) (See ON-VEHICLE INSPECTION )

A: Go to next step

READ VALUE USING TECHSTREAM (VSC OFF SWITCH)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.

Select the Data List on the Techstream (See DATA LIST / ACTIVE TEST ).

ABS/VSC/TRAC

ABS/VSC/TRAC DATA LIST

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
TRC/VSC Off Mode	VSC OFF switch / NORMAL, TRC OFF or VSC OFF	NORMAL: Normal mode TRC OFF: TRAC off mode VSC OFF: VSC off mode	-

Using the Techstream, check the switch condition on the Techstream changes according to VSC OFF switch operation.
OK:

The Techstream display changes according to VSC OFF switch operation .

NG: Go to step 6

OK: Go to next step

INSPECT COMBINATION METER ASSEMBLY

Turn the ignition switch off.
Turn the ignition switch to ON and check the VSC OFF indicator light will come on for approximately 3 seconds (initial check).
Perform the Active Test of the combination meter (meter CPU) using the Techstream (See DATA LIST / ACTIVE TEST ).

Check the accessory meter.

Result

RESULT CHART

Result	Proceed to
OK	A
NG (Initial check is normal, and the VSC OFF Indicator light does not turn on or off in accordance with the Techstream operation)	B
NG (Initial check is abnormal)	C

HINT:

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

B: REPLACE COMBINATION METER ASSEMBLY (See REMOVAL )

C: REPLACE ACCESSORY METER ASSEMBLY (See ACCESSORY METER )

A: REPLACE BRAKE ACTUATOR ASSEMBLY (See REMOVAL )

INSPECT VSC OFF SWITCH

Turn the ignition switch off.
Disconnect the VSC OFF switch connector.

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

Standard Resistance

RESISTANCE SPECIFICATION

Tester Connection	Switch Condition	Specified Condition
6 (+) - 3 (E)	Switch is pushed In	Below 1 Ω
6 (+) - 3 (E)	Switch is not pushed In	10 kΩ or higher

Fig 1: Inspecting VSC OFF Switch

NG: REPLACE VSC OFF SWITCH (See REMOVAL )

OK: Go to next step

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

Disconnect the skid control ECU connector.

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

Standard Resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
A42-17 (CSW) - D2-6 (+)	Always	Below 1 Ω
A42-17 (CSW) - Body ground	Always	10 kΩ or higher
D2-3 (E) - Body ground	Always	Below 1 Ω

Text in Illustration

ILLUSTRATION LEGEND

*1	Front view of wire harness connector (to Brake Actuator (Skid Control ECU)
*2	Front view of wire harness connector (to VSC OFF Switch)

Fig 2: Identifying Skid Control ECU Connector And VSC OFF Switch Connector

HINT:

If troubleshooting has been carried out according to 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

OK: REPLACE BRAKE ACTUATOR ASSEMBLY (See REMOVAL )