Inspection Procedure

NOTE: When replacing the ABS and TRACTION actuator assembly, perform zero point calibration (see CALIBRATION ).

INSPECT CAN COMMUNICATION SYSTEM

Check if the CAN communication system DTC is output (see DIAGNOSIS SYSTEM ).

Result

RESULT CHART

Display (DTC Output)	Proceed To
DTC is not output	A
DTC is output	B

B: REPAIR CAN COMMUNICATION SYSTEM

A: Go to next step

INSPECT MULTIPLEX COMMUNICATION SYSTEM

Check if the multiplex communication system DTC is output (see DTC CHECK / CLEAR ).

Result

RESULT CHART

Display (DTC Output)	Proceed To
DTC is not output	A
DTC is output	B

B: REPAIR MULTIPLEX COMMUNICATION SYSTEM

A: Go to next step

INSPECT 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

INSPECT BATTERY

Check the battery voltage.
Voltage:

11 to 14 V

Result

RESULT CHART

Result	Proceed To
OK (2WD)	A
OK (4WD)	B
NG	C

B: Go to step 8

C: INSPECT CHARGING SYSTEM

A: Go to next step

INSPECT VSC OFF SWITCH

Remove the VSC OFF switch.
Disconnect the VSC OFF switch connector.

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

Resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

Tester Connection	Switch Condition	Specified Condition
K43-3 - K43-4	Pressed	Below 1 Ω
K43-3 - K43-4	Not pressed	10 kΩ or higher

Fig 1: Identifying VSC OFF Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE VSC OFF SWITCH

OK: Go to next step

INSPECT VSC OFF SWITCH (GROUND CIRCUIT)

Disconnect the VSC OFF switch connector.

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

Resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

Tester Connection	Specified Condition
K43-4 - Body ground	Below 1 Ω

Fig 2: Identifying VSC OFF Switch Connector Terminals (Ground Circuit)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)

OK: Go to next step

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

Disconnect the skid control ECU connector and the VSC OFF switch connector.

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

Resistance

TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

Tester Connection	Specified Condition
A44-43 (CSW) - K43-3	Below 1 Ω
A44-43 (CSW) - Body ground	10 kΩ or higher

Fig 3: Identifying Skid Control ECU And VSC OFF Switch Connector Terminals

NG: REPAIR 0R REPLACE HARNESS OR CONNECTOR (CSW CIRCUIT)

OK: Go to next step

INSPECT COMBINATION METER ASSEMBLY
1. Check the combination meter assembly (see INITIALIZATION ).
  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

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY