Checking the power supply to the compressor

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
Disassemble the 1-pin compressor connector.
Connect an ohmmeter between the cylinder block and the connector (compressor side).
- The ohmmeter reads approximately 0 Ω. Select 1.
  Refer to Fault-tracing information
- The ohmmeter reads 2-5 Ω: Select 2.
  Refer to Checking for an open-circuit
- The ohmmeter reads infinite resistance. Select 3.
  Refer to Fault-tracing information
Fig 2: Identifying Ohmmeter
Courtesy of VOLVO CARS OF NORTH AMERICA.

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