Toyota 4Runner: Door Mirror Foot Light Circuit

Toyota 4Runner Service Manual / Vehicle Interior / Lighting (int) / Lighting System / 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.

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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.

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

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

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