2002 Chrysler Neon LX, AutomaticFACTORY OEM SERVICE PROCEDURE

Powertrain Verification Test VER-1

  1. If the Powertrain Control Module (PCM) has been replaced and the correct vehicle mileage and Vehicle Identification Number (VIN) have not been programmed, a Diagnostic Trouble Code (DTC) will be set in Controller Anti-Lock Brake (CAB), Air Bag Control Module (ACM) and Sentry Key Immobilizer Module (SKIM). See POWERTRAIN CONTROL MODULE  under PROGRAMMING.
  2. If vehicle is equipped with SKIM, secret key data must be updated to enable engine starting. See SENTRY KEY IMMOBILIZER MODULE  under PROGRAMMING.
  3. Inspect the vehicle to ensure that all components related to the repair are connected properly.
  4. Inspect the engine oil for fuel contamination. Replace the oil and filter as necessary.
  5. Attempt to start engine.
  6. If no-start condition is still present, go to NO-START DIAGNOSIS  for additional testing by symptom. Refer to any Technical Service Bulletin (TSB) that may apply.
  7. Run the engine for one warm-up cycle to verify operation.
  8. With the DRBIII(R), confirm that no DTCs or Secondary Indicators are present and that all components are functioning properly.
  9. If a DTC is present, perform appropriate test. Are any DTCs present? If yes, repair is not complete. See DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS - NEON article. If no, repair is complete.
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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.

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