Meter Illumination is Always Dark [12/2013 - ]: Procedure

1. Check if CAN communication DTCs are output.

   Refer to DIAGNOSIS SYSTEM [12/2013 - 11/2016] or DIAGNOSIS SYSTEM [11/2016 - ]

   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 [12/2013 - 11/2016]  or  HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ] 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
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 to 8191 lx	Value is output according to ambient light level	-

   Body Electrical > Main Body > Data List 

   Tester Display
   Light Sensor Illuminance

   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). Refer to  CUSTOMIZE PARAMETERS [12/2013 - 11/2016]  or  CUSTOMIZE PARAMETERS [11/2016 - ] 

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 [12/2013 - ]

   OK

   The operation of the combination meter assembly returns to normal.

Result: 

OK 

END 

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2013 - ]