2000 Volvo S40FACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS

Component Component Location
ABS Control Module In right front corner of engine compartment. See Figure.
A/C Compressor Control Module Behind right center of dash. See Figure.
A/C Control Module Integral with A/C controls, in center of dash.
Automatic Transmission Control Module (TCU) Behind lower center of dash. See Figure.
Central Electric Module (CEM) Behind left end of dash. See Figure.
Cruise Control Module Behind right center of dash. See Figure.
DSA Control Module Behind right end of dash. See Figure.
ECC Blower Motor Speed Regulator Under right side of dash, in HVAC housing.
ECC Control Module Integral with A/C controls, in center of dash.
Engine Control Module (ECM) Behind lower center of dash. See Figure.
Ignition Warning Control Module Behind lower left center of dash. See Figure.
Immobilizer Control Module Behind left end of dash. See Figure.
Power Sun Roof Control Module Above headliner, at front center of roof.
SRS Control Module Below rear of center console, between front seats. See Figure.
VGLA Control Module Behind lower center of dash.
VGLA Receiver In rear of engine compartment.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.