Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When replacing the VSC actuator assembly, perform zero point calibration (See CALIBRATION ).

PERFORM ACTIVE TEST USING TECHSTREAM (SKID CONTROL BUZZER)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON and the Techstream on.

Select the Active Test mode on the Techstream.

ABS/VSC/TRAC:

DIAGNOSTIC NOTE TABLE

Tester Display	Test Part	Control Range	Diagnostic Note
Buzzer	Skid control buzzer	ON/OFF	Buzzer can be heard

Check that the buzzer sounds/stops when turning the skid control buzzer on/off by using the Techstream.

Result

RESULT TABLE

Result	Proceed to
Buzzer does not sound or sounds constantly	A
Buzzer sounds/stops	B

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 ).

B: REPLACE VSC ACTUATOR ASSEMBLY (See REMOVAL )

A: Go To Next Step

INSPECT SKID CONTROL BUZZER (POWER SOURCE TERMINAL)

Disconnect the J5 buzzer connector.

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

Standard Voltage

TESTER CONNECTION SPECIFIED CONDITION TABLE

Tester Connection	Switch Condition	Specified Condition
J5-2 - Body ground	Ignition switch ON	11 to 14 V

Fig 1: Identifying J5 Buzzer Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

OK: Go To Next Step

INSPECT SKID CONTROL BUZZER
1. Remove the skid control buzzer (See REMOVAL ).
2. Apply battery negative voltage to terminal 1, and battery positive voltage to terminal 2 of the skid control buzzer, and then check that the buzzer sounds.
  OK: Skid control buzzer sounds.
  
  Fig 2: Identifying Skid Control Buzzer
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE SKID CONTROL BUZZER ASSEMBLY (See REMOVAL )

OK: Go To Next Step

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - SKID CONTROL BUZZER)

Disconnect the A17 ECU connector.
Disconnect the J5 skid control buzzer connector.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

Tester Connection	Condition	Specified Condition
A17-8 (BZ) - J5-1	Always	Below 1 Ω
A17-8 (BZ) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying A17 ECU Connector & J5 Skid Control Buzzer Connector

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go To Next Step

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BODY GROUND)

Disconnect the A17 ECU connector.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

Tester Connection	Condition	Specified Condition
A17-1 (GND1) - 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 before replacing the part (See PROBLEM SYMPTOMS TABLE ).

Fig 4: Identifying A17 ECU Connector Terminal (GND1)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE VSC ACTUATOR ASSEMBLY (See REMOVAL )