Toyota Venza manuals

Toyota Venza: TC and CG Terminal Circuit

DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the system to enter self-diagnostic mode. If a malfunction is present, the MIL will blink.

HINT:

When a particular warning light remains blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in the relevant ECU is suspected.

WIRING DIAGRAM


PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (DLC3 - ECM)

(a) Disconnect the ECM connector.


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

Standard Resistance:

For 1AR-FE

Tester Connection

Condition

Specified Condition

D1-13 (TC) - A49-7 (TC)

Always

Below 1 Ω

For 2GR-FE

Tester Connection

Condition

Specified Condition

D1-13 (TC) - A41-16 (TC)

Always

Below 1 Ω

Text in Illustration

*1

DLC3

*2

Front view of wire harness connector

(to ECM)

*3

for 1AR-FE

*4

for 2GR-FE

(c) Reconnect the ECM connector.


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - ECM)


OK

2.

CHECK HARNESS AND CONNECTOR (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

DLC3


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (DLC3 - BODY GROUND)


OK

3.

CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D1-13 (TC) - Body ground

Always

10 kΩ or higher

Text in Illustration

*1

DLC3


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU

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