Inspection Procedure

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

   Result 

   RESULT REFERENCE
   
   

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

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

A: Go to Next Step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream ON.
4. Select the Active Test mode and operate the SLIP indicator light using the Techstream.

   ABS/VSC/TRAC 

   DATA LIST REFERENCE
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Slip Indicator Light	SLIP indicator light	Indicator light ON/OFF	Observe combination meter

5. Check that the SLIP indicator light turns on and off in the combination meter when using the Techstream.

   OK: The SLIP indicator light turns ON and OFF in accordance with the Techstream operation. 

   HINT:

   When the SLIP indicator light remains illuminated, there may be an open in the wire harness of the combination meter or abnormalities in the meter circuit.

NG: GO TO METER / GAUGE SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to Next Step 

1. Remove the VSC OFF switch (See REMOVAL  ).
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   6 - 9	Switch is pressed	Below 1 Ω
   	Switch is not pressed	10 kΩ or higher

NG: REPLACE VSC OFF SWITCH  (See REMOVAL  )

Fig 1: Identifying VSC OFF Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Disconnect the A19 ECU connector.
2. Disconnect the H29 VSC OFF switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   A19-13 (CSW) - H29-9	Always	Below 1 Ω
   A19-13 (CSW) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Identifying A19 ECU Connector Terminal And H29 Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE VSC ACTUATOR ASSEMBLY  (See REMOVAL  )