Inspection [01/2012 - ]

INSPECT LIGHT CONTROL RHEOSTAT

Inspect the light control rheostat.

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

Fig 1: Light Control Rheostat Operation Diagram

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

STANDARD RESISTANCE

Tester Connection	Switch Condition	Specified Condition
6 (TC) - 5 (T)	TAIL cancel switch off → on	10 kΩ or higher → Below 1 Ω
5 (T) - 1 (E)	Always	10 kΩ +/-20%
7 (TR) - 1 (E)	Light control rheostat fully turned right → fully turned left	10 kΩ +/-20% → Below 100 Ω

Inspect the ODO/TRIP switch.

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

STANDARD RESISTANCE

Tester Connection	Switch Condition	Specified Condition
4 (A/B) - 1 (E)	ODO/TRIP switch on (Pushed)	Below 100 Ω
4 (A/B) - 1 (E)	ODO/TRIP switch off (Not pushed)	1 MΩ or higher

Apply battery voltage to the connector and check the LED illumination condition.

Measurement Condition	Specified Condition
Battery positive (+) → Terminal 2 (ILL+) Battery negative (-) → Terminal 3 (ILL-)	Light illuminates

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