Checking the Wiring

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.

  If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference at start up or can be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs.

  Check the cable between the central electronic module (CEM) and the switch for the hazard warning signal flasher. Check for a short-circuit to ground.

  Take readings between:

  • Central electronic module (CEM) terminal #D14 (14) and terminal #1 on the switch for the hazard warning signal flasher.

  Remedy as necessary.

  Other information 

  • See Connecting the Breakout Box
  • See Signal Specification
  • See Location Of Components
  • See Switch, Hazard Warning Signal Flasher, Replacing
  • See Contents

Was a fault detected? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking Over Temperature