Checking the relay

Check that relay 2/29 is installed correctly. At the same time check the relay connections, in particular 2/29 #2, for a short circuit to ground as described in Short-circuit to ground, intermittent faults . Also check the relay circuit for any open circuits, as described in Open-circuit, intermittent faults .

Additional information: 

• To replace relay, see Central electronic module (HEM), replacing .
• To connect the test box, see Connecting the breakout box .

Fig 2: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Voltage Display

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Fig 4: Identifying Relays And Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Refer to Information