Discussion:
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
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
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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