Meter Illumination is Always Dark [10/2016 - 09/2020]: Procedure

1. Check if CAN communication DTCs are output.

   Refer to DIAGNOSIS SYSTEM [10/2016 - 10/2017] , or refer to DIAGNOSIS SYSTEM [10/2017 - 09/2018] , or refer to DIAGNOSIS SYSTEM [09/2018 - 09/2020]

   Result

   Result	Proceed to
   CAN communication DTCs are not output	A
   CAN communication DTCs are output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2016 - 09/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - ] 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Check the values by referring to the table below.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Light Sensor Illuminance	Light sensor illuminance	0 lx to 8191 lx	Value output according to ambient light levels	-

   Body Electrical > Main Body > Data List 

   Tester Display
   Light Sensor Illuminance

   Result

   Result	Proceed to
   The output value changes according to the ambient light level	A
   The output value does not change according to the ambient light level	B

Result: 

B 

CHECK CUSTOMIZE PARAMETER SETTING (SENSITIVITY) 

w/ AFS (Adaptive Front-lighting System) : Refer to CUSTOMIZE PARAMETERS [10/2016 - 09/2020]

w/o AFS (Adaptive Front-lighting System) : Refer to CUSTOMIZE PARAMETERS [10/2016 - 09/2020]

Result: 

A 

See step  3

1. Replace the main body ECU (multiplex network body ECU) with a new or known good one.

   Refer to REMOVAL [04/2013 - ]

   OK

   The operation of the combination meter assembly returns to normal.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2016 - 09/2020]