F115 2002: code 28 "shift position switch"

[loyoki]

Hello,
Do you know what is "Shift Position Switch" on a F115 ?
I have done diags and I have this error code 28:

Diagnosis,
,Code,Item,Result,Condition,
,28,Shift position switch,Irregular,Irregular signal,
,13,Pulser coil,Normal,,
,15,Water temp sensor,Normal,,
,18,Throttle position sensor,Normal,,
,19,Battery voltage,Normal,,
,23,Intake temp sensor,Normal,,
,29,Intake press sensor,Normal,,
,37,Intake air passage,Normal,,
,44,Engine stop lanyard switch,Off,,

Engine Monitor,
,Monitor Item,Result,Unit,
,Engine speed,904,r/min,
,Intake pressure,555.9,HPa,
,Intake pressure,16.69,inHg,
,Atmospheric pressure,1005.5,HPa,
,Atmospheric pressure,29.8,inHg,
,Ignition timing,ATDC 3,deg,
,Battery voltage (12-16),14.90,V,
,Throttle valve opening (0-90),0.8,deg,
,ISC valve opening (0-100),77,%,
,Fuel injection duration,2.43,ms,
,Water temperature (below 90),48.7,°C,
,Water temperature (below 194),119.6,°F,
,Intake temperature (below 70),26.7,°C,
,Intake temperature (below 158),80.1,°F,
,Oil pressure switch,OFF,,
,Engine stop lanyard switch,OFF,,
,Shift position switch,OFF,,
,Dual engine system switch,OFF,,
"code 28":

Many thanks for your help

[rodbolt17]

it means that the ECU saw a crank signal and a shift position that should not have been or you over sped the engine in N.

[loyoki]

So what must I do ?

[rodbolt17]

simply test the switch with an ohm meter.
its a simple on or off swictch just like the light switch on your wall.
it also wont really affect engine running.
in N its off or open,in gear its on or closed.

[loyoki]

OK, but where is this switch ? In the remote control ?
Thanks

[rodbolt17]

on the shift slide.
two wire blue connector.
you really need a service manual with yor laptop.

[loyoki]

No, I need to be American ;o) I am French, even if I speak English it is very difficult to understand technical English, and more in motors because you have expressions that can't be translate word to word or no equivalent in my language.
So I understand "shift", I understand "slide" but not 'shift slide": perhaps it is where there is connectors, relays, ECU, regulator on the engine ?
Sorry.