2003 Chrysler 300M BaseFACTORY OEM SERVICE PROCEDURE

Monitored & Set Conditions

Intake Air Temperature (IAT) sensor voltage is monitored with the ignition on and battery voltage greater than 10 volts. DTC will set when IAT sensor circuit voltage at the PCM goes above 4.98 volts. This is a one trip fault.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

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

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

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