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Home >> Chrysler >> 2002 >> Sebring LX, 2D Coupe, 2.4 G >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - Coupe - 2.4L >> Idle Control Systems >> Improper Idle Speed When A/C Is Operating
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Improper Idle Speed When A/C Is Operating

  1. Ensure ignition is off. Check for poor connections or faulty terminals at Engine Control Module (ECM) connector C-109 (M/T) or Powertrain Control Module (PCM) connector C-114 (A/T). ECM/PCM is located on passenger's side of vehicle. See Figure . Repair faulty connections as necessary. Recheck for improper idle speed condition. If connections are okay, go to next step.
  2. Disconnect ECM connector C-109 or PCM connector C-114. See Figure or Figure . Start engine and allow to idle. Turn A/C switch on. Using DVOM, measure voltage between ground, and ECM connector C-109 terminal No. 24 (Blue/White wire) or PCM connector C-114 terminal No. 61 (Blue/White wire). If ambient (outside) temperature is less than 59°F (15°C), voltage should be one volt or less. If ambient temperature is greater than 65.4°F (18°C), battery voltage should be indicated. If voltage is as specified for current ambient temperature, replace ECM/PCM. See REMOVAL, OVERHAUL & INSTALLATION - SEBRING COUPE & STRATUS COUPE article. If voltage is not as specified for current ambient temperature, diagnose A/C system. See appropriate article in AIR CONDITIONING & HEATING.
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