Checking the power supply

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition ON

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Fig 2: Disconnecting Connector

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Ignition off
Disconnect air conditioning (A/C) condenser fan relay 2/13
Ignition on.
Connect a voltmeter between air conditioning (A/C) condenser fan relay base terminal #1 and ground.

Fig 3: Identifying Air Conditioning (A/C) Relay Terminals
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Fig 4: Identifying Voltage Display
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Fig 5: Identifying Integrated Relay/Fusebox
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The voltmeter should read battery voltage.

OK
Refer to Checking the signal cable
NOT OK
Refer to Checking the power supply

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition on.
Check the cable between air conditioning (A/C) condenser fan relay base terminal #1 and fuse 9 for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Fig 2: Identifying Air Conditioning (A/C) Relay Terminals
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Ohmmeter
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Fig 4: Identifying Integrated Relay/Fusebox
Courtesy of VOLVO CARS OF NORTH AMERICA.

Continue
Refer to Verification