Inspection Procedure

NOTE:

When replacing the VSC actuator assembly, perform zero point calibration (See CALIBRATION ).
for 2UZ-FE:
If the ECM has been replaced, it is necessary to register the ECU (See REGISTRATION ).
for 3UR-FE:
If the ECM has been replaced, it is necessary to register the ECU (See REGISTRATION ).
for 3UR-FBE:
If the ECM has been replaced, it is necessary to register the ECU (See REGISTRATION ).

INSPECT DLC3 (TC AND CG TERMINAL)

Turn the ignition switch to ON.

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

Standard Voltage

VOLTAGE SPECIFICATION

Tester Connection	Switch Condition	Specified Condition
H19-13 (TC) - Body ground	Ignition switch ON	11 to 14 V

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

Standard Resistance

RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
H19-4 (CG) - Body ground	Always	Below 1 Ω

NG: Go to step 3

Fig 1: Identifying Front View Of DLC3 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step

CHECK CAN COMMUNICATION SYSTEM

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

Result

RESULT REFERENCE

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

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

A: Go to Next Step

CHECK HARNESS AND CONNECTOR (DLC3 - ECM)

Disconnect the A27 ECU connector.

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

Standard Resistance

RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
H19-13 (TC) - A27-16 (TC)	Always	Below 1 Ω
H19-13 (TC) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 2: Identifying A27 ECU Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)

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

Standard Resistance

RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
H19-4 (CG) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 3: Identifying H19 Connector Terminal

OK: Go to Next Step

INSPECT ECM (DLC3 INPUT)

Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
SST 09843-18040

Check if the ABS warning light is blinking.

Result

RESULT REFERENCE

Result	Proceed to
ABS warning light is blinking	A
ABS warning light is not blinking (for 2UZ-FE)	B
ABS warning light is not blinking (for 3UR-FE)	C
ABS warning light is not blinking (for 3UR-FBE)	D

B: REPLACE ECM (See REMOVAL )

C: REPLACE ECM (See REMOVAL )

D: REPLACE ECM (See REMOVAL )

Fig 4: Identifying Front View Of DLC3 Connector Terminal

A: REPLACE VSC ACTUATOR ASSEMBLY (See REMOVAL )