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HOMESERVICE MANUALSACURA2003MDX TOURINGREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETHEORY AND OPERATIONENGINE CONTROLS - THEORY & OPERATIONCOMPUTERIZED ENGINE CONTROLSPOWERTRAIN CONTROL MODULE
2003 Acura MDX Touring

Powertrain Control Module

2003 Acura MDX TouringSECTION Powertrain Control Module

The PCM controls fuel injector timing and duration, idle speed, ignition and camshaft timing, PCM back-up functions, and other functions. The PCM is located in front passenger footwell area. On RSX and 3.5RL, ECM/PCM is located under right side of dash, behind carpet. On MDX, 3.2CL and 3.2TL, ECM/PCM is located below left center of dash, behind carpet.

NOTE: Components are grouped into 2 categories. The first category is INPUT DEVICES , which are components that control or produce signals monitored and processed by the PCM. The second category is OUTPUT SIGNALS , which are components controlled by the PCM.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
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  • • 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.