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Home >> Chevrolet >> 2010 >> Cobalt LS, 4D Sedan, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Immobilizer System) >> Symptom Troubleshooting >> Engine does not start with the immobilizer key

Engine does not start with the immobilizer key

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Before troubleshooting, check the items listed in General Check before Troubleshooting (see IMMOBILIZER KEY REGISTRATION  ).
  1. Try to start the engine.

    Does the engine start? 

    YES  -Intermittent failure, the vehicle is OK at this time Check status log (see STATUS LOG  ) and check the line with the highest number of occurrences.

    NO  -Go to step 2.

  2. Turn the ignition switch to LOCK (0).
  3. Turn the ignition switch to ON (II), and check the immobilizer indicator.

    Does the indicator blink once, then stay off? 

    YES  -Go to step 4.

    NO  -Go to the immobilizer indicator blinks troubleshooting (see SYMPTOM TROUBLESHOOTING  ).

  4. Turn the ignition switch to START (III).

    Does the starter motor run? 

    YES  -Go to step 5.

    NO  -Go to Starting System, and check the starter motor (see SYMPTOM TROUBLESHOOTING INDEX ).

  5. Try to start the engine with the immobilizer key. Does the engine start?

    YES  -Go to step 6.

    NO  -Go to the PGM-FI System Symptom Troubleshooting (see GENERAL TROUBLESHOOTING INFORMATION ).

  6. Wait for a few minutes with the engine running.

    Does the engine stop? 

    YES  -Go to the PGM-FI System Symptom Troubleshooting (see GENERAL TROUBLESHOOTING INFORMATION ).

    NO  -The system is OK at this time.