Operating Light Control Rheostat does not Change Light Brightness [11/2021 - ]: Procedure

1. Read the Data List according to the display on the GTS.

   Body Electrical > Combination Meter > Data List 

   Tester Display	Measurement Item	Range	Diagnostic Note
   Illumination control switch input state	Input condition of light control rheostat is displayed	0 to 100 %	-

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Illumination control switch input state

   OK

   Depending on the operation of the light control rheostat, the value of 0 to 100 is displayed in the Data List item.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

NG 

See step  2

1. Read the Data List according to the display on the GTS.

   Body Electrical > Combination Meter > Data List 

   Tester Display	Measurement Item	Range	Diagnostic Note
   Bright switch input state	Input condition of bright switch is displayed	OFF ON	-

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Bright switch input state

   OK

   The value of the Data List item is correct.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

NG 

See step  3

Refer to INSPECTION [11/2021 - ]

Result

Result: 

NG 

REPLACE LIGHT CONTROL RHEOSTAT. Refer to  REMOVAL [11/2021 - ] 

Result: 

OK 

See step  4

1. Disconnect the F22 light control rheostat connector.
2. Disconnect the F11 combination meter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F22-4 - F11-31(ILLUMI CONTROL SW POWER)	Always	Below 1 Ω
   F22-1 - F11-32(BRIGHT (ILLUMI CANCEL) SW)	Always	Below 1 Ω
   F22-5 - F11-30(ILLUMI CONTROL SW VR)	Always	Below 1 Ω
   F22-6 - F11-29(ILLUMI CONTROL SW GND)	Always	Below 1 Ω
   F22-4 or F11-31(ILLUMI CONTROL SW POWER) - Body ground	Always	10 kΩ or higher
   F22-1 or F11-32(BRIGHT (ILLUMI CANCEL) SW) - Body ground	Always	10 kΩ or higher
   F22-5 or F11-30(ILLUMI CONTROL SW VR) - Body ground	Always	10 kΩ or higher
   F22-6 or F11-29(ILLUMI CONTROL SW GND) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR