VSC OFF Indicator Light Remains ON: Procedure

1. Check if the CAN communication system DTC is output. Refer to DIAGNOSIS SYSTEM .
   RESULT
   
   

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

B → See step   10 

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

NG → See step   9 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch ON.
3. Select the Data List on the Techstream. Refer to DATA LIST / ACTIVE TEST .
   ABS/VSC/TRAC
   
   

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

4. Using the Techstream, check that 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 → See step   6 

OK: Go to next step 

1. Connect a Techstream to the DLC3.
2. Perform Active Test of the combination meter using the Techstream. Refer to DATA LIST / ACTIVE TEST .

   OK

   The VSC OFF indicator light turns ON or OFF in accordance with the Techstream.

NG → See step   13 

OK → See step   12 

1. Turn the ignition switch off.
2. Disconnect the VSC OFF switch connector.
3. Measure the resistance according to the value(s) in the table below.
   Fig 1: Identifying VSC Off Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

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

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (VSC OFF Switch)

NG → See step   11 

OK: Go to next step 

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A15-30 (CSW) - F25-6 (+)	Always	Below 1 Ω
   A15-30 (CSW) - Body ground	Always	10 kΩ or higher
   F25-3 (E) - Body ground	Always	Below 1 Ω

   HINT: 

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   8