Checking The Cable

Check the cable between central electronic module connector terminal #20A and the ignition switch connector terminal #50. Check for an open-circuit according to OPEN-CIRCUIT, INTERMITTENT FAULTS . Check for a short-circuit to ground according to SHORT-CIRCUIT TO GROUND, INTERMITTENT FAULTS .

Other information 

• The voltage must be the same as battery voltage if the key is in position III
• 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

Fig 1: Breakout Box

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Ohm Meter

Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Central Electronic Module (CEM) Connector Terminals

Courtesy of VOLVO CARS CORPORATION