Light Control Rheostat: Inspection

INSPECT LIGHT CONTROL RHEOSTAT

Remove the light control rheostat with connector still connected.

Fig 1: Identifying Light Control Rheostat Connector Terminals
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Measure the resistance according to the value(s) in the table below.

Standard Resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
R6-1 (E) - R6-7 (RV)	Light control rheostat position is MIN.	Below 1 Ω
R6-1 (E) - R6-7 (RV)	Light control rheostat position is between MIN. and MAX.	8 to 12 kΩ
R6-1 (E) - R6-7 (RV)	ODO/TRIP switch is OFF → ON	10 kΩ or higher → Below 1 Ω

HINT:

If the value is not as specified, replace the light control rheostat.

Fig 2: Light Control Rheostat Resistance Graph

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