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Home >> Chevrolet >> 2010 >> Cobalt LS, 4D Sedan, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (IMA System) >> Charging System Indicator Circuit Troubleshooting >> Charging system indicator never comes on, no DTCs set

Charging system indicator never comes on, no DTCs set

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.
  1. Turn the ignition switch to LOCK (0).
  2. Connect the HDS to the DLC.
  3. Turn the ignition switch to ON (II), and select the IMA SYSTEM.

    Does the HDS communicate with the IMA system? 

    YES  -go to step 4.

    NO  -Do the DLC circuit troubleshooting.

  4. Do the gauge self-diagnostic function.

    Does the charging system indicator flash? 

    YES  -The system is OK at this time.

    NO  -Substitute a known-good gauge control module, and recheck. If the charging system indicator circuit is OK, replace the original gauge control module.