Inspection Procedure

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

   Result 

   DTC RESULT DESCRIPTION
   
   

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

   OK: The connector is securely connected. 

B: REPAIR CAN COMMUNICATION SYSTEM 

A: Go to next step. 

1. Check if the skid control ECU connector is securely connected.

   OK: The connector is securely connected. 

NG: CONNECTOR CORRECTLY 

OK: Go to next step. 

1. Disconnect the A19 ECU connector.
Fig 1: Identifying A19 ECU Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the wire harness side connector.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Switch Condition	Specified Condition
   A19-43 (CSW) - Body ground	AUTO LSD switch is not pushed	10 kΩ or higher
   A19-43 (CSW) - Body ground	AUTO LSD switch is pushed	Below 1Ω

OK: Go to step  6

NG: Go to next step. 

1. Remove the auto LSD switch.
Fig 2: Identifying Auto LSD Switch
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the switch.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Switch Condition	Specified Condition
   3 - 6	Not pushed	10 kΩ or higher
   3 - 6	Pushed	Below 1Ω

NG: REPLACE TRACTION CONTROL SWITCH 

OK: Go to next step. 

1. Disconnect the A19 ECU connector.
Fig 3: Identifying A19 ECU And E51 Switch Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the E51 switch connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   A19-43 (CSW) - E51-6	Below 1 Ω
   E51-3 - Body ground	Below 1 Ω
   A19-43 (CSW) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step. 

1. Check the combination meter (see HOW TO PROCEED WITH TROUBLESHOOTING ).

NG: REPLACE COMBINATION METER ASSEMBLY 

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY