Wont start Code P0688

2004 DODGE STRATUS
100,000 MILES • AUTOMATIC
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DCMEZA
  • MEMBER
  • 33 POSTS
Replaced fuel pump.
Replaced ECM.
Getting code P0688.
Do any of your mechanics answer in Spanish?
Oct 25, 2016 at 1:29 AM
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AL514
  • CAR REPAIR CONTRIBUTOR
  • 5,491 POSTS
This Code is "no voltage sensed at PCM when the ASD (AutoShutDown) relay is energized. Check fuse #14 30 amp and fuse #25 20 amp, in the left side panel in the engine compartment.
This feeds the ASD relay and the ECM. The ASD relay powers up the Fuel Injectors and from fuse #25 sends a power signal to the ECM that the ASD relay is energized.

This is all from the 2.4 liter engine though. So needing the engine size and sub model Is necessary.
Oct 25, 2016 at 2:15 AM
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