Toyota Venza: Door Mirror Foot Light Circuit

Toyota Venza Service Manual / Lighting (ext) / Lighting System / Door Mirror Foot Light Circuit

DESCRIPTION

The main body ECU (driver side junction block assembly) controls the door mirror foot lights.

WIRING DIAGRAM

1. w/o Seat Position Memory:

2. w/ Seat Position Memory:

PROCEDURE

1.	CHECK VEHICLE CONDITION

(a) Check the vehicle condition.

Result	Proceed to
w/o Seat Position Memory	A
w/ Seat Position Memory	B

GO TO STEP 5

2.	PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Body Electrical / Main Body / Active Test.

(e) Check that the door mirror foot lights operate.

Main Body

Tester Display	Test Part	Control Range	Diagnostic Note
Side Mirror Foot Light	Door mirror foot lights	ON/OFF	-

OK:

Door mirror foot lights illuminate.

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

3.	INSPECT OUTER REAR VIEW MIRROR ASSEMBLY

(a) Remove the outer rear view mirror assembly that does not illuminate (See page ).

(b) Connect a positive (+) lead from the battery to terminal 10 (MLP) and a negative (-) lead to terminal 9 (-).

Result	Proceed to
OK	A
NG (Door mirror foot light LH does not come on)	B
NG (Door mirror foot light RH does not come on)	C

Text in Illustration

*1	Component without harness connected (Outer Rear View Mirror Assembly LH) (Outer Rear View Mirror Assembly RH)

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

4.	CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - OUTER REAR VIEW MIRROR ASSEMBLY)

(a) Disconnect the D49 main body ECU (driver side junction block assembly) connector.

(b) Disconnect the I11 or H11 outer rear view mirror assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
I11-10 (MLP) - D49-3 (MILE)	Always	Below 1 Ω
H11-10 (MLP) - D49-3 (MILE)	Always	Below 1 Ω
D49-3 (MILE) - Body ground	Always	10 kΩ or higher

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.	PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream on the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Body Electrical / Mirror L or Mirror R / Active Test.

(e) Check that the door mirror foot lights operate.

Mirror L

Tester Display	Test Part	Control Range	Diagnostic Note
Foot Light	Door mirror foot light LH	ON/OFF	-

Mirror R

Tester Display	Test Part	Control Range	Diagnostic Note
Foot Light	Door mirror foot light RH	ON/OFF	-

Result	Proceed to
OK	A
NG (Door mirror foot light LH does not come on)	B
NG (Door mirror foot light RH does not come on)	C

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

GO TO STEP 8

6.	INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH

(a) Remove the outer rear view mirror assembly LH (See page ).

(b) Connect a positive (+) lead from the battery to terminal 10 (MLP) and a negative (-) lead to terminal 9 (-).

OK:

Door mirror foot light comes on.

Text in Illustration

*1	Component without harness connected (Outer Rear View Mirror Assembly LH)

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

7.	CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY LH - OUTER REAR VIEW MIRROR ASSEMBLY LH)

(a) Disconnect the I12 outer mirror control ECU assembly LH connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
I12-2 (LP) - I11-10 (MLP)	Always	Below 1 Ω
I12-2 (LP) - Body ground	Always	10 kΩ or higher
I12-12 (HTR-) - I11-9 (-)	Always	Below 1 Ω
I12-12 (HTR-) - Body ground	Always	10 kΩ or higher

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.	INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH

(a) Remove the outer rear view mirror assembly RH (See page ).

(b) Connect a positive (+) lead from the battery to terminal 10 (MLP) and a negative (-) lead to terminal 9 (-).

OK:

Door mirror foot light comes on.

Text in Illustration

*1	Component without harness connected (Outer Rear View Mirror Assembly RH)

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

9.	CHECK HARNESS AND CONNECTOR (OUTER MIRROR CONTROL ECU ASSEMBLY RH - OUTER REAR VIEW MIRROR ASSEMBLY RH)

(a) Disconnect the H12 outer mirror control ECU assembly RH connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
H12-2 (LP) - H11-10 (MLP)	Always	Below 1 Ω
H12-2 (LP) - Body ground	Always	10 kΩ or higher
H12-12 (HTR-) - H11-9 (-)	Always	Below 1 Ω
H12-12 (HTR-) - Body ground	Always	10 kΩ or higher

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH

REPAIR OR REPLACE HARNESS OR CONNECTOR

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