Nissan UNKNOWN:
Error 444 cont communication problem

Hi got a k1b1r18u in for battery issues getting this error after RPL any ideas
  • Posted 4 Feb 2020 22:59
  • Discussion started by Matt_es
  • Ireland
Matt
Showing items 1 - 1 of 1 results.
Probably fixed this but for future reference. Models 1b1, 1b2, a1n1
Code 444 can come from either a defective meter panel or a defective controller. Do Not swap parts with a known good truck to test as you have a 50/50 chance of swapping the wrong component.

A defective meter panel or controller with code 444 will rewrite the good controller or meter panel.

Test point for this code is on the traction controllers.
Connector 2 pin 12
Connector 2 pin 23 (should be an empty hole with no wire)
Infinity resistance between the two pins.
  • Posted 31 Jul 2020 12:07
  • Reply by BLey
  • Ontario, Canada

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