Toyota CH-R Service Manual: Footwell Light Circuit

Toyota CH-R Service Manual / Lighting (ext) / Lighting System / Footwell Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the door mirror foot lights.

WIRING DIAGRAM

PROCEDURE

1.

PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

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

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > Main Body > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Side Mirror Foot Light

Door mirror foot lights

ON or OFF

-
Body Electrical > Main Body > Active Test

Tester Display

Side Mirror Foot Light

OK:

Door mirror foot lights illuminate.

Result

Proceed to

OK

A

NG (for LH Side)

B

NG (for RH Side)

C
A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

C

GO TO STEP 5

B

2.

CHECK OUTER REAR VIEW MIRROR ASSEMBLY LH (POWER SOURCE)

(a) Disconnect the J7 outer rear view mirror assembly LH connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

J7-3 (MLP) - Body ground

Illumination conditions of door mirror foot light met*

11 to 14 V
  • *: Refer to System Description for the illumination conditions of the outer rear view mirror assembly light.

    Click here

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

INSPECT DOOR MIRROR FOOT LIGHT LH

(a) Remove the door mirror foot light LH.

Click here

(b) Check the door mirror foot light LH illumination.

(1) Apply battery voltage between the terminals of the door mirror footwell light LH and check the illumination condition of the door mirror footwell light LH.

OK:

Condition

Specified Condition

Battery positive (+) → Terminal 1 (+)

Battery negative (-) → Terminal 2 (E)

Illuminates

*a

Component without harness connected

(Door Mirror Foot Light LH)
NG

REPLACE DOOR MIRROR FOOT LIGHT LH

OK

4.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - BODY GROUND)

(a) Disconnect the J7 outer rear view mirror assembly LH.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

J7-9 (-) - Body ground

Always

Below 1 Ω
OK

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.

CHECK OUTER REAR VIEW MIRROR ASSEMBLY RH (POWER SOURCE)

(a) Disconnect the I8 outer rear view mirror assembly RH connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

I8-3 (MLP) - Body ground

Illumination conditions of door mirror foot light met*

11 to 14 V
  • *: Refer to System Description for the illumination conditions of the outer rear view mirror assembly light.

    Click here

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

6.

INSPECT DOOR MIRROR FOOT LIGHT RH

(a) Remove the door mirror foot light RH.

Click here

(b) Check the door mirror foot light RH illumination.

(1) Apply battery voltage between the terminals of the door mirror footwell light RH and check the illumination condition of the door mirror footwell light RH.

OK:

Condition

Specified Condition

Battery positive (+) → Terminal 1 (+)

Battery negative (-) → Terminal 2 (E)

Illuminates

*a

Component without harness connected

(Door Mirror Foot Light RH)
NG

REPLACE DOOR MIRROR FOOT LIGHT RH

OK

7.

CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - BODY GROUND)

(a) Disconnect the I8 outer rear view mirror assembly RH.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

I8-9 (-) - Body ground

Always

Below 1 Ω
OK

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
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