Clark NPR17:
Diagnostic Code -48

Does anyone know what the code "48" indicates. The unit was moving, then just stopped and displayed code 48. all else works except the drive motor does not engauge.
  • Posted 16 Oct 2010 22:47
  • Discussion started by joe_t
  • New York, United States
Showing items 1 - 5 of 5 results.
Also Check your battery's health and make sure water is in it,if it is drawing alot of amperage due to a weak/poor battery can cause truck to operate hotter than normanl
  • Posted 23 Mar 2012 19:48
  • Reply by kevin_t
  • Pennsylvania, United States
Sorry for the delay,
code -41 Open Thermal Protector or Control Over Temperature
Symptom: Reduced or no power to traction motor in control range

Possible Cause: Open Thermal Protector Circuit

Check for loose or corroded connection or broken wire between Violet wire at thermal protector and PZ2. Same check between White/Violet wire at thermal protector and PZ5.
Disconnect wires from PZ2 and PZ5. Measure at room temperature the resistance between Violet and White/Violet wires. Replace thermister if ohmic value is greater than 1300 ohms. Code should disappear if unit is allowed to cool down, check for brake drag.
  • Posted 23 Mar 2012 08:07
  • Reply by tom_p
  • Alberta, Canada
Yes i do will post tomorrow
  • Posted 3 Mar 2012 14:13
  • Reply by tom_p
  • Alberta, Canada
Hey Tom P, do you have the full code troubleshooting for fault 41?
  • Posted 23 Feb 2012 05:06
  • Reply by steve_p
  • Florida
Code 48 often results from a faulty contactor assy, welded tips or most often sluggish or stuck contactor armature. If this is not helpful i can send the full code 48 troubleshooting guide.
  • Posted 4 Apr 2011 07:04
  • Reply by tom_p
  • Alberta, Canada

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