Toyota Venza: TC and CG Terminal Circuit

Toyota Venza Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / TC and CG Terminal Circuit

DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the ECU to display the DTC by blinking the ABS warning and slip indicator lights.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

HINT:

When the warning lights continue to blink, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in one or more ECUs is suspected.

PROCEDURE

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output (See page ).

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

INSPECT CAN COMMUNICATION SYSTEM

2.	INSPECT DLC3

(a) Turn the ignition switch to ON.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
D1-13 (TC) - D1-4 (CG)	Ignition switch ON	11 to 14 V

Text in Illustration

*1	Front view of DLC3

GO TO STEP 4

3.	CHECK ECM (TC of DLC3 INPUT)

(a) Turn the ignition switch off.

(b) Reconnect the ECM connector.

SST: 09843-18040

Text in Illustration

*1	Front view of DLC3

(d) Turn the ignition switch to ON.

(e) Check that the check engine warning light is blinking.

Result	Proceed to
Check engine warning light is blinking	A
Check engine warning light is not blinking	B

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See page ).

REPLACE BRAKE ACTUATOR ASSEMBLY

REPAIR OR REPLACE WIRE HARNESS OR ECM (TC of ECM CIRCUIT)

4.	CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM)

(a) Turn the ignition switch off.

(b) Disconnect the ECM connector.

Standard Resistance:

for 2GR-FE

Tester Connection	Condition	Specified Condition
D1-13 (TC) - A41-16 (TC)	Always	Below 1 Ω
D1-13 (TC) - Body ground	Always	10 kΩ or higher

for 1AR-FE

Tester Connection	Condition	Specified Condition
D1-13 (TC) - A49-7 (TC)	Always	Below 1 Ω
D1-13 (TC) - Body ground	Always	10 kΩ or higher

Text in Illustration

*1	Front view of DLC3
*2	Front view of wire harness connector (to ECM)
*3	for 2GR-FE
*4	for 1AR-FE

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.	CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
D1-4 (CG) - Body ground	Always	Below 1 Ω

Text in Illustration

*1	Front view of DLC3

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.	CHECK ECM (TC of DLC3 INPUT)

(a) Turn the ignition switch off.

(b) Reconnect the ECM connector.

SST: 09843-18040

Text in Illustration

*1	Front view of DLC3

(d) Turn the ignition switch to ON.

(e) Check that the check engine warning light is blinking.

Result	Proceed to
Check engine warning light is blinking	A
Check engine warning light is not blinking	B

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See page ).

REPLACE BRAKE ACTUATOR ASSEMBLY

REPAIR OR REPLACE WIRE HARNESS OR ECM (TC of ECM CIRCUIT)

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