Checking the connector

Fig 1: Identifying Ignition ON

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Fig 2: Connecting Connector

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Ignition off
Check the air conditioning (A/C) relay connector. Check for contact resistance and oxidation
Reinstall the components, reconnect the connectors etc.
Ignition on
Activate the air conditioning (A/C) relay.
A " clicking sound" should be heard when the air conditioning (A/C) relay is activated.

If the air conditioning (A/C) relay is now OK, the cause of the fault was loose connections in the connector.

Other information
- For information about signals:
  - For 5 cylinder turbocharged engines -2001, see Signal specification
  - For 5 cylinder turbocharged engines 2002, see Signal specification
  - For B5254T2 -2004, see Signal description
  - For B5204T5, B5234T3, B5234T7 and B5244T3 -2004, see SIGNAL SPECIFICATION (B5204T5, B5234T3, B5234T7 AND B5244T3 -2004)
  - For B5254T4 2004, see SIGNAL SPECIFICATION (B5254T4 2004)
  - For 5 cylinder turbocharged engines 2005-, see Signal specification .
- See Checking wiring and terminals .
Fig 3: Identifying Connector Terminals
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Fig 4: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 5: Identifying A/C Relay
Courtesy of VOLVO CARS OF NORTH AMERICA.

Does the air conditioning (A/C) relay function?