Main Switch Circuit [09/2020 - ]: Procedure

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 / ASC / Data List.
5. Read the Data List according to the display on the Techstream.

   Body Electrical > ASC > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Volume SW	Vehicle sound switch on/off status	OFF or ON	OFF: Vehicle sound switch off ON: Vehicle sound switch on	-

   Body Electrical > ASC > Data List 

   Tester Display
   Volume SW

   OK

   Normal conditions listed above are displayed.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2020 - ] 

Result: 

NG 

See step  2

1. Remove the vehicle sound switch.

   Refer to REMOVAL [09/2020 - ]

2. Inspect the vehicle sound switch.

   Refer to INSPECTION [09/2020 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE VEHICLE SOUND SWITCH. Refer to  REMOVAL [09/2020 - ] 

Result: 

OK 

See step  3

1. Disconnect the K154 stereo component equalizer assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K204-4 (NVI) - K154-5 (VLSW)	Always	Below 1 Ω
   K204-4 (NVI) or K154-5 (VLSW) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY. Refer to  REMOVAL [09/2020 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR