Checking the unlocking signal

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Connect an ohmmeter between terminals #A18 (A18) and #A1 (A1).

  Turn the key in the driver's door to the unlocking position.

  The value must be infinite when the lock is unaffected and 0Ω when the key is turned to the unlocking position.

  Fig 2: Identifying Ohmmeter

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the value OK? 

• YES 

  FAULT NOT FOUND:  Troubleshooting has been completed.

• NO 

  Refer to Checking control switch and wiring