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

A : Go to next step 

1. Check if a multiplex communication system DTC is output (See DTC CHECK/CLEAR ).

   Result 

   RESULT REFERENCE
   
   

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

B : INSPECT MULTIPLEX COMMUNICATION SYSTEM  (See DIAGNOSTIC TROUBLE CODE CHART )

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

OK : Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Select the Data List mode on the Techstream (See DATA LIST/ACTIVE TEST  ).

   ABS/VSC/TRAC 

   TESTER DISPLAY REFERENCE CHART
   
   

   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: TR(A)C off mode VSC OFF: VSC off mode	-

4. 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  7

OK : Go to next step 

1. Turn the engine switch off.
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 slip 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 REMOVAL )

OK : REPLACE SKID CONTROL ECU  (See REMOVAL  )

1. Turn the engine switch off.
2. Disconnect the VSC OFF switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   3 (+) - 4 (E)	Switch is not pushed in	10 kΩ or higher

NG : REPLACE VSC OFF SWITCH 

Fig 1: Inspecting VSC OFF Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : 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 

   STANDARD RESISTANCE
   
   

   Tester Connection	Condition	Specified Condition
   K93-7 (CSW) - K43-3 (+)	Always	Below 1 Ω
   K93-7 (CSW) - Body ground	Always	10 kΩ or higher
   K43-4 (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 2: Checking Harness And Connector (Skid Control ECU - VSC OFF Switch)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : REPLACE SKID CONTROL ECU  (See REMOVAL  )