Question about 2002 Chevrolet TrailBlazer
Carlos, most likely you have a bad alternator. You need to check the voltage @ the battery with the vehicle running.Anything over 13.7 volts should be ok. If its not even over 13 volts, most likely you have a bad alternator and will need to replace it.If you don't , then the engine is running off of the battery and will stop running when the battery goes dead.usually within about 50 miles or so.
Posted on Nov 29, 2013
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Posted on Jan 02, 2017
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The IPC determines that the system voltage is less than 11 volts or greater than 16 volts. The IPC receives a serial data message from the body control module (BCM) indicating the system voltage.
The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds.
The ignition is on, with the engine off
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