Checking serial communication to screens 2

Loosen the lower connector in the seat where the previous measurement was below 2 V.

Take readings from the same cable as before in the lower connector.

If voltage in the lower connector now is approx. 2.5 V, the screen in question is probably defective.

Remedy as necessary.

Other information 

• See Signal specification, rear seat entertainment module (RSE)
• See Rear seat entertainment module (RSE), replacing
• See Head restraint with TV screen, replacing
• See Checking wiring and terminals

Fig 1: Identifying Cable Connector To Display Screen/Head Restraint

Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Checking voltage to Rear Seat Entertainment Module (RSE)