Instrument Panel/Meter: Inspection

LIGHT CONTROL RHEOSTAT

Inspect continuity.

Check the continuity between the light control rheostat connector terminals when operating the rheostat volume knob.

Table Standard:

CONTINUITY

Switch	Terminal No. (Symbol)	Continuity
Turn the knob to maximum	1(TC)<=>3(T)	Continuity
Other conditions of the above	1(TC)<=>3(T)	No continuity

Fig 1: Checking Continuity

G02891120

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Check resistance.
1. Check the resistance between terminal 4 (RV) and terminal 3 (T) when operating the light control rheostat volume knob. Also, check that the resistance changes continuously.
Standard resistance:

Turn the knob to maximum: Approx. 10 kΩ

Turn the knob to minimum: Approx. 0 kΩ

Fig 2: Resistance Graph
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002