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Safe Mode- No Code

I have a unit that intermitently goes into safe mode. The dash displays the exclamation point symbol with the propane light. The propane tank home switch is good. The park brake switch is good. I have replaced the VCM, Ecm, Meter panel And fuel system. Laptop displays consistent fuel pressure at 33psi. No codes. Thinking of replacing the wiring harness next.
Any ideas?

Thanks
  • Posted 26 Sep 2012 00:53
  • By cheek
  • joined 6 Nov'09 - 25 messages
  • Alberta, Canada
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Showing items 1 - 2 of 2 results.
Serial # 9H3369. It still lifts but slow when in safe mode, still tilts normally. Seat switch is confirmed as good.
when in safe mode it just has the two lights flashing and will not throttle up. when it is idling it idles perfectly. The regulator has been swapped to a sister unit.
It will drive but with no throttle.

Thanks
  • Posted 27 Sep 2012 00:07
  • By cheek
  • joined 6 Nov'09 - 25 messages
  • Alberta, Canada
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I that 33PSI or 3.3PSI fuel pressure,does this have the NIKKI regulator on it? What is the Serial number of the truck? can You Describe what it does when it goes into this safe mode? Does it lift and tilt? Does it drive? Did you check the seat switch???
  • Posted 26 Sep 2012 02:42
  • By kevin_t
  • joined 2 Dec'10 - 1,301 messages
  • Pennsylvania, United States
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Fact of the week
The black box flight recorder was invented by Australian scientist David Warren in the mid-1950s. While initially met with indifference in Australia, his invention gained international recognition, particularly in the UK, and is now a mandatory piece of safety equipment on all commercial aircraft.