Vehicle Interior

Light Control Rheostat

~1min read
Components COMPONENTS ILLUSTRATION
Inspection INSPECTION PROCEDURE

1. INSPECT LIGHT CONTROL RHEOSTAT (w/o TAIL Cancel Switch)

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


Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

7 (T) - 1 (E)

Always

8 to 12 kΩ

3 (RV) - 1 (E)

Light control rheostat fully turned upward → fully turned downward

8 to 12 kΩ → Below 50 Ω

If the result is not as specified, replace the rheostat.

2. INSPECT LIGHT CONTROL RHEOSTAT (w/ TAIL Cancel Switch)

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


Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

7 (T) - 1 (E)

Always

8 to 12 kΩ

5 (TC) - 7 (T)

TAIL cancel switch off → on

Below 50 Ω → 8 to 12 kΩ

3 (RV) - 1 (E)

Light control rheostat fully turned upward → fully turned downward

8 to 12 kΩ → Below 50 Ω

If the result is not as specified, replace the rheostat.

Installation INSTALLATION PROCEDURE

1. INSTALL LIGHT CONTROL RHEOSTAT

(a) Attach the 2 claws to install the rheostat.

2. INSTALL NO. 2 SWITCH HOLE BASE


Removal REMOVAL PROCEDURE

1. REMOVE NO. 2 SWITCH HOLE BASE


2. REMOVE LIGHT CONTROL RHEOSTAT

(a) Detach the 2 claws and remove the rheostat.

Test yourself

A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.