Toyota 4Runner manuals

Toyota 4Runner: Inside Handle Illumination Light Circuit

Toyota 4Runner Service Manual / Vehicle Interior / Lighting (int) / Lighting System / Inside Handle Illumination Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the inside handle illumination.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.

CHECK DOOR INSIDE HANDLE ILLUMINATION

(a) Check the each door inside handle illumination.

Result

Result

Proceed to

Front door inside handle illumination does not come on.

A

Rear door inside handle illumination does not come on.

B

B

GO TO STEP 5


A

2.

INSPECT NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY (FRONT DOOR INSIDE HANDLE ILLUMINATION) (LH OR RH)

(a) Remove the No. 1 interior illumination light assembly (front door inside handle illumination) (See page ).

(b) Connect a positive (+) lead from the battery to terminal 1 and a negative (-) lead to terminal 2.

(c) Check that the No. 1 interior illumination light assembly (front door inside handle illumination) comes on.

Text in Illustration

*a

Component without harness connected

(No. 1 Interior Illumination Light Assembly (Front Door Inside Handle Illumination))

OK:

No. 1 interior illumination light assembly (front door inside handle illumination) comes on


NG

REPLACE NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY (FRONT DOOR INSIDE HANDLE ILLUMINATION)


OK

3.

CHECK HARNESS AND CONNECTOR (BATTERY - NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY)

(a) Disconnect the h2*1 or g3*2 No. 1 interior illumination light assembly (front door inside handle illumination) connector.

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

  • *1: for LH
  • *2: for RH

Standard Voltage:

for LH

Tester Connection

Condition

Specified Condition

h2-2 - Body ground

Always

11 to 14 V

for RH

Tester Connection

Condition

Specified Condition

g3-2 - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

CHECK HARNESS AND CONNECTOR (NO. 1 INTERIOR ILLUMINATION - DRIVER SIDE JUNCTION BLOCK)

(a) Disconnect the h2*1 or g3*2 No. 1 interior illumination light assembly (front door inside handle illumination) connector.

(b) Disconnect the 2B driver side junction block assembly connector.

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

  • *1: for LH
  • *2: for RH

Standard Resistance (Check for Open):

for LH

Tester Connection

Condition

Specified Condition

h2-1 - 2B-36

Always

Below 1 Ω

for RH

Tester Connection

Condition

Specified Condition

g3-1 - 2B-36

Always

Below 1 Ω

Standard Resistance (Check for Short):

for LH

Tester Connection

Condition

Specified Condition

h2-1 or 2B-36 - Body ground

Always

10 kΩ or higher

for RH

Tester Connection

Condition

Specified Condition

g3-1 or 2B-36 - Body ground

Always

10 kΩ or higher
Result

Result

Proceed to

NG

A

OK

B

A

REPAIR OR REPLACE HARNESS OR CONNECTOR

B

GO TO STEP 8

5.

INSPECT NO. 2 INTERIOR ILLUMINATION LIGHT ASSEMBLY (REAR DOOR INSIDE HANDLE ILLUMINATION) (LH OR RH)

(a) Remove the No. 2 interior illumination light assembly (rear door inside handle illumination) (See page ).

(b) Connect a positive (+) lead from the battery to terminal 1 and a negative (-) lead to terminal 2.

(c) Check that the No. 2 interior illumination light assembly (rear door inside handle illumination) comes on.

Text in Illustration

*a

Component without harness connected

(No. 2 Interior Illumination Light Assembly (Rear Door Inside Handle Illumination))

OK:

No. 2 interior illumination light assembly (rear door inside handle illumination) comes on


NG

REPLACE NO. 2 INTERIOR ILLUMINATION LIGHT ASSEMBLY (REAR DOOR INSIDE HANDLE ILLUMINATION)


OK

6.

CHECK HARNESS AND CONNECTOR (BATTERY - NO. 2 INTERIOR ILLUMINATION LIGHT ASSEMBLY)

(a) Disconnect the j2*1 or i2*2 No. 2 interior illumination light (rear door inside handle illumination) connector.

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

  • *1: for LH
  • *2: for RH

Standard Voltage:

for LH

Tester Connection

Condition

Specified Condition

j2-2 - Body ground

Always

11 to 14 V

for RH

Tester Connection

Condition

Specified Condition

i2-2 - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

7.

CHECK HARNESS AND CONNECTOR (NO. 2 INTERIOR ILLUMINATION - DRIVER SIDE JUNCTION BLOCK)

(a) Disconnect the j2*1 or i2*2 No. 2 interior illumination light (rear door inside handle illumination) connector.

(b) Disconnect the 2B driver side junction block assembly connector.

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

  • *1: for LH
  • *2: for RH

Standard Resistance (Check for Open):

for LH

Tester Connection

Condition

Specified Condition

j2-1 - 2B-36

Always

Below 1 Ω

for RH

Tester Connection

Condition

Specified Condition

i2-1 - 2B-36

Always

Below 1 Ω

Standard Resistance (Check for Short):

for LH

Tester Connection

Condition

Specified Condition

j2-1 or 2B-36 - Body ground

Always

10 kΩ or higher

for RH

Tester Connection

Condition

Specified Condition

i2-1 or 2B-36 - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

8.

INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

(a) Remove the driver side junction block assembly (See page ).


Text in Illustration

*a

Component without harness connected

(Driver Side Junction Block Assembly)

-

-

(b) Remove the main body ECU (multiplex network body ECU) from driver side junction block assembly.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

2B-36 - A-26 (FSPT)

Always

Below 1 Ω

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


NG

REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY

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