Author Topic: resolving fault code 0X21F7A1  (Read 4370 times)

Dennis Williamson

  • Newbie
  • *
  • Posts: 4
  • Karma: +0/-0
resolving fault code 0X21F7A1
« on: November 19, 2022, 03:20:41 PM »
Engine oil  temperature sensor,signal or value below threshold.code 0X21F7A1. anybody resolve or trace this and could you please share your finding

GS Jim

  • Full Member
  • ***
  • Posts: 233
  • Karma: +10/-0
Re: resolving fault code 0X21F7A1
« Reply #1 on: November 20, 2022, 12:20:23 AM »
This is some info for you to start checking out.

Fault Code Description
DME detects a value from the engine oil temperature sensor that is too low.
The engine oil temperature sensor gives a very low value that is not plausible any more. (below -39°C).
Fault Code Conditions

Service Plan
Check wiring, wiring harness and plug connector to engine oil temperature sensor.
Check wiring harness plug connector to DME
Check engine oil temperature sensor.

Service Notes
If this fault occurs at the same time as the fault "21F761 engine oil level too low", it is likely that there is no plug connection to the sensor.
After rectifying the fault, reset the mixture preparation adaption values.

Dennis Williamson

  • Newbie
  • *
  • Posts: 4
  • Karma: +0/-0
Re: resolving fault code 0X21F7A1
« Reply #2 on: November 27, 2022, 01:04:28 AM »
thanks for the info not sure of the location of sensor or connections. any help is appreciated
should mention  the bike is a wet head 2014 r1200rt

GS Jim

  • Full Member
  • ***
  • Posts: 233
  • Karma: +10/-0
Re: resolving fault code 0X21F7A1
« Reply #3 on: November 27, 2022, 03:13:07 AM »
I think you'll find it behind the starter so you probably have to remove it and the exhaust servo motor.

GS Jim

  • Full Member
  • ***
  • Posts: 233
  • Karma: +10/-0
Re: resolving fault code 0X21F7A1
« Reply #4 on: November 27, 2022, 03:17:44 AM »
Can't seem to get the jpeg to post, some kind of a "internal server error" :(

Dennis Williamson

  • Newbie
  • *
  • Posts: 4
  • Karma: +0/-0
Re: resolving fault code 0X21F7A1
« Reply #5 on: December 23, 2022, 02:48:51 PM »
is there a ohm reading that i can take at the sensor plug end?

Dennis Williamson

  • Newbie
  • *
  • Posts: 4
  • Karma: +0/-0
Re: resolving fault code 0X21F7A1
« Reply #6 on: July 10, 2023, 04:02:38 AM »
thanks gs Jim all is well with swapped out  new temp sensor