Checking The Component And Wiring

Check the cable terminals. Check for contact resistance, loose connections and oxidation.

Check the cable terminals in the female and male sections of the connector. The cable terminals must not be damaged or pressed back.

Check the voltage supply cables between the Integrated Audio Module (IAM) #D1 and the USB connection #1 with regard to short-circuit to ground.

Remedy as necessary.

Other information 

• see CHECKING WIRING AND TERMINALS
• see SIGNAL SPECIFICATION

Fig 3: Identifying 4-Pin Connector

Courtesy of VOLVO CARS CORPORATION

See: VERIFICATION