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Engine Controls - System & Component Testing: Diagnosis Dodge Neon II

Testing & Diagnostics ~485 words

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»(ref-142459-S10997484432002080500000) under PROGRAMMING.
  2. If vehicle is equipped with SKIM, secret key data must be updated to enable engine starting. See «SENTRY KEY IMMOBILIZER MODULE»(ref-142459-S34935821052002080500000) 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»(ref-142460-S38393381302002080500000) in BASIC DIAGNOSTIC PROCEDURES - NEON article for additional testing by symptom. Refer to any Technical Service Bulletins (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»(ref-133003-S26406645532002021100000) in SELF-DIAGNOSTICS - NEON article. If no, repair is complete.

POWERTRAIN VERIFICATION TEST VER-2

  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»(ref-142459-S10997484432002080500000) under PROGRAMMING.
  2. If vehicle is equipped with SKIM, secret key data must be updated to enable engine starting. See «SENTRY KEY IMMOBILIZER MODULE»(ref-142459-S34935821052002080500000) under PROGRAMMING.
  3. Inspect the vehicle to ensure that all components related to the repair are connected properly.
  4. With the DRBIII(R), clear DTCs, then select Reset Memory All Engine Values.
  5. Run the engine for one warm-up cycle to verify proper operation.
  6. Road test the vehicle. Use all accessories that may be related to this repair.
  7. With the DRBIII(R), confirm that no DTCs or Secondary Indicators are present and that all components are functioning properly
  8. If this test is being performed after a no trouble code test, verify the symptom is no longer present.
  9. If symptom is still present or any other symptom or DTC is present, go to «TROUBLE SHOOTING - NO CODES - CARS - EXCEPT SEBRING COUPE & STRATUS COUPE»(ref-142307) article or perform appropriate test. See «DIAGNOSTIC TROUBLE CODE DEFINITIONS»(ref-133003-S26406645532002021100000) in SELF-DIAGNOSTICS - NEON article.
  10. Refer to any Technical Service Bulletins (TSB) that may apply.
  11. If there are no DTCs present and all components are functioning properly, the repair is complete. Are any DTCs present? If yes, repair is not complete. See «DIAGNOSTIC TROUBLE CODE DEFINITIONS»(ref-133003-S26406645532002021100000) in SELF-DIAGNOSTICS - NEON article. If no, repair is complete.

See also:
• WIRING DIAGRAMS

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