Checking components and wiring

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 OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Disconnect idle air control (IAC) valve.
Check that the resistance in the idle air control (IAC) valve between terminals 1 and 2 is approximately 10 Ω at +20 °C.

Check the signal cable between engine control module (ECM) terminal 64 and idle air control (IAC) valve terminal 2 for an intermittent open-circuit. Remedy according to Open-circuit, intermittent faults .

Check the power supply cable between idle air control (IAC) valve terminal 1 and system relay (2/14) terminal 3 for an intermittent open-circuit and remedy according to Open-circuit, intermittent faults .

Other information
- To connect the breakout box, see Connecting the breakout box. EMS 2000 .
Fig 3: Identifying Idle Air Control (IAC) Valve Connector Terminals
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Ohmmeter
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 5: Identifying EMS2000
Courtesy of VOLVO CARS OF NORTH AMERICA.

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