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Fault codes

Hi I'm new to the site i have a few codes i dont know what they are. Hopefully some one can tell me

522712-4
2023-12
522655-1
522592-1
91-2
These codes are all from the same unit. It only has 900hrs on it
Thank you for you help
  • Posted 14 Feb 2017 05:05
  • By Chris88
  • joined 14 Feb'17 - 1 message
  • Texas, United States
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Showing items 1 - 2 of 2 results.
Without any other information on how the truck is running and symptoms and what you have done i will throw 2 cents into the diagnosis........lalso full model and serial number are a help but here it goes.....

522712-4 is for Accel pedal sensor A OUt of range low(OORL).....did you inplug the accel pedal with key on...???

2023-12 is Canbus error as stated

522655-1 is short term fuel lean condition
522592-1 is EPR(Electronic Pressure Regulator) Pressure low
These two are related and more than likely the initial codes generated

91-2 is for TPS(Throttle position sensor)......was this also unplugged with key on during your diagnosis....????
  • Posted 15 Feb 2017 17:24
  • By kevin_t
  • joined 2 Dec'10 - 1,301 messages
  • Pennsylvania, United States
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Your codes are all over the place. Check the Canbus resistance, you have a couple of can errors, these can cause a lot of erratic codes.
  • Posted 15 Feb 2017 00:46
  • By BREWSKI
  • joined 10 Jan'12 - 1,699 messages
  • Nebraska, United States
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Fact of the week
In Germany, the 9th of November is sometimes called Schicksalstag, the "Day of Fate" because it has been the day for several major historical events, including the horrors of Kristallnacht in 1938 and the fall of the Berlin Wall in 1989.