Inspection Procedure

NOTE: When replacing the skid control ECU, perform zero point calibration and store system information (See CALIBRATION ).

CHECK CAN COMMUNICATION SYSTEM

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

CHECK MULTIPLEX COMMUNICATION SYSTEM

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

READ VALUE USING TECHSTREAM (VSC OFF SWITCH)

Connect the Techstream to the DLC3.
Turn the engine switch on (IG).

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	-

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 5

OK : Go to next step

INSPECT COMBINATION METER ASSEMBLY
1. Turn the engine switch off.
2. Check the combination meter (See HOW TO PROCEED WITH TROUBLESHOOTING ).
  OK:
  
  The combination meter is normal.
  
  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 : REPLACE COMBINATION METER ASSEMBLY (See REMOVAL )

OK : REPLACE SKID CONTROL ECU (See REMOVAL )

INSPECT VSC OFF SWITCH

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

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 pushed in	Below 1 Ω

NG : REPLACE VSC OFF SWITCH

Fig 1: Inspecting VSC OFF Switch

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

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)

OK : REPLACE SKID CONTROL ECU (See REMOVAL )