Toyota 4Runner manuals

Toyota 4Runner: Door Mirror Foot Light Circuit

DESCRIPTION

The main body ECU controls the door mirror foot light.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

PERFORM ACTIVE TEST USING TECHSTREAM (DOOR MIRROR FOOT LIGHT)

(a) Using the Techstream, perform the Active Test (See page ).


Main Body

Tester Display

Test Part

Control Range

Diagnostic Note

Side Mirror Foot Light

Door mirror foot light

ON/OFF

-

OK:

Door mirror foot light comes on.


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

2.

CHECK HARNESS AND CONNECTOR (OUTER MIRROR - MAIN BODY ECU AND BODY GROUND)

(a) Disconnect the I4 and H4 outer mirror connectors.

(b) Disconnect the F10 main body ECU connector.

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

Standard Resistance:

for LH

Tester Connection

Condition

Specified Condition

I4-1 (MLP) - F10-4 (MILE)

Always

Below 1 Ω

I4-7 (MLP-) - Body ground

Always

Below 1 Ω

I4-1 (MLP) - Body ground

Always

10 kΩ or higher

for RH

Tester Connection

Condition

Specified Condition

H4-1 (MLP) - F10-4 (MILE)

Always

Below 1 Ω

H4-7 (MLP-) - Body ground

Always

Below 1 Ω

H4-1 (MLP) - Body ground

Always

10 kΩ or higher


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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