Discussion:
CODE -24

I have a NPR17 with a code -24 the truck will not travel reverse

all contactors ok and forward reverse switches fine

does anyone have an idea what this code is.
  • Posted 14 Sep 2011 04:08
  • By 67dave67
  • joined 4 Dec'08 - 38 messages
  • British Columbia, Canada
Showing items 1 - 3 of 3 results.
suspect sluggish rev solenoid ,they can be removed dissassembled and blown out (with some success) but if you go that far, recommend replaceing entire assy (not just tips) as they are a pain to get out
  • Posted 13 Oct 2012 08:41
  • By snowmonkey
  • joined 13 Oct'12 - 36 messages
  • Alberta, Canada
back up alarm was just replaced a bit ago, I will have a look there.
  • Posted 15 Sep 2011 01:20
  • By 67dave67
  • joined 4 Dec'08 - 38 messages
  • British Columbia, Canada
how do you know the contactors are 'OK'?
They are by far the most likely reason for this code.
Have you replaced the directional/traction contactor assembly with one from a known good truck that you saw work?
Has anyone added or wired or repaired a backup alarm recently?
  • Posted 15 Sep 2011 00:07
  • Modified 15 Sep 2011 00:08 by poster
  • By edward_t
  • joined 5 Mar'08 - 2,334 messages
  • South Carolina, United States
"it's not rocket surgery"

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