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Trouble code P1682 means: Charging system voltage too low
Trouble code P1682 means: Ignition 1 Switch Circuit 2
2005 chevy trailbazer
P1682 A/T FI Signal A High Input (Acura, Honda)P1682 Charging System Voltage Too Low (Chrysler, Jeep)
Charging system voltage too low.
Trouble code P0171 means:System too lean (Bank 1)
The diagnostic code 410, on your 2004 Chevrolet trailblazer, is a reference to a vacuum hose problem. Check the vacuum hoses to make sure they are all connected.
P1682 Charging System Voltage Too Low
The second spark plug is misfiring. Could be the coil right above the spark plug.
Trouble code P0496 means: Evaporative emission system - high purge flow
A few weekends ago I had to replace the fan clutch on my '06 Trailblazer EXT LS. In addition to getting the P0495 code from the check engine light, when I rev'd it up it sounded like a jet engine. Instructions: http://www.diystew.com/2006-trailblazer/
You have to find the cause of the charging system malfunction. It could be the alternator, wiring, or PCM.