Checking The Ignition Switch Lighting

Check that the bulb is intact.

Check the connectors for the central electronic module (CEM) and ignition switch lighting. Check for contact resistance and oxidation. Check for loose connections. Check for damage carefully.

Check the power supply cable between central electronic module (CEM) terminal #19D (#B19) and ignition switch lighting terminal #5. Check for an open-circuit. Check for a short-circuit to supply voltage.

Check the ground lead between ignition switch terminal #6 and the ground terminal. Check for an open-circuit. Check for a short-circuit to supply voltage.

Remedy as necessary.

Other information 

• To access the bulb and connector for the ignition switch, see BULB, IGNITION SWITCH, REPLACING
• To access the central electronic module (CEM):
  • For -2004, see: CENTRAL ELECTRONIC MODULE (CEM), REPLACING .
  • For 2005-, see: CENTRAL ELECTRONIC MODULE (CEM), REPLACING .
• To connect the breakout box, see CONNECTING THE BREAKOUT BOX
• -2004: SIGNAL SPECIFICATION
• 2005-: SIGNAL SPECIFICATION
• see CHECKING WIRING AND TERMINALS

Fig 2: Breakout Box

Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Ohm Meter

Courtesy of VOLVO CARS CORPORATION

Fig 4: Identifying Connector Terminals

Courtesy of VOLVO CARS CORPORATION

Refer to VERIFICATION