2005 Chrysler 300 BaseFACTORY OEM SERVICE PROCEDURE

Removal - NGC Controller

WARNING: This page is about a different car, the 2004 Dodge Grand Caravan, 2004 Dodge Caravan, and 2004 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.

The PCM engine control strategy prevents reduced idle speeds until after the engine operates for 320 km (200 miles). If the PCM is replaced after 320 km (200 miles) of usage, update the mileage and vehicle identification number (VIN) in the new PCM. Use the DRBIII® scan tool to change the millage and VIN in the PCM. If this step is not done a Diagnostic Trouble Code (DTC) may be set. Refer to the appropriate Powertrain Diagnostic procedures and the DRBIII® scan tool.

Fig 1: Locating NGC Controller
G02676622Courtesy of DAIMLERCHRYSLER CORP.
  1. Turn wheels to the left.
  2. Disconnect the negative battery cable.
  3. Raise vehicle and support.
  4. Remove the left front wheel well splash shield (Fig 2).
    Fig 2: Locating Splash Shield
    G02676623Courtesy of DAIMLERCHRYSLER CORP.
  5. Unlock and disconnect the electrical connectors (Fig 3).
    Fig 3: Removing NGC Controller
    G02676624Courtesy of DAIMLERCHRYSLER CORP.
  6. Remove 3 screws from PCM to mounting bracket.
  7. Remove the PCM.
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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.