1997 Dodge Neon DOHC

thought? must be using a English translator, that's ok but confusing.
1500 ram not VAN
USA car or NOT, no country told (sad face)
manual transmission or automatic
2wd or 4wd?
I can not find 1255 in the book.(SM)
1255 is stated at dodge forum as (but is wrong for 1997)

P1255 Pedal Correlation PDS2 and LPDS Low
PDs means throttle(gas) pedal switch , that does not exists here..

that means the throttle by wire is bad, (but there is no TBW in 1997)
did you type the dtc wrong or year wrong IDK but seems wrong
learn that P1xxx codes are OEM only factory only codes for one model car and engine.

do not read posts about other cars and P1255 or you get endless lies. P0xxx codes are standardized USA and p1, and p2 up are not.
DO not read inernet lies that claim, chevy DTC codes are the same and DODGE or go broke fast you will
for sure P1xxx codes !!!

looks like dodge use this code 3 times
bad O2
bad MAP
and later mid 2000s bad PDS.
fun is not there, to learn what it is,
but do read here. USA cars/trucks if is (or Canada)

https://eautorepair.net/Marketing/Default.asp

when i need a code read i go to ORielies auto parts and they read codes for free..and so far accurately i'm sure other auto parts stores offer the same service for free.

Most major auto parts stores will connect a code reader to the plug the vehicle has-----it will read the error for the Check Engine and also can clear the check engine--does not fix the problem but the error code read will indicate in a general way why the light came on---my experience here is first hand---most of the time it will be a error related to the emission control system.

Get the code read and take it from there.

There are other good experts here so with the code post again if need further help.

Thats exactly what it sounds like.

• A check engine light means that an error code has been sent to the PCM. The light won't just go off. You have to fix the problem and then clear the codes. But first you have to have the codes read to know what to fix. You can go to any major parts store and have the codes read for free. Then you come post the code[s] here for me to see and then I can assist you from there. The code could be minor or major but you won't know until they are read.

• If you have any comments please feel free to leave them here.
• Hope this helps and thank you for using FixYa.

Regards, Tony

Thats not a valid obdII code. Thats actually an error from the scanner itself not understanding the data that was sent.. I would clear the code and see if it returns. If it does find someone with the proper code scanner for a CAN system.

You will require an error code reading machine, Which can be bought from car auto stores at low prices, You only need a cheap one to read the current error codes if you are sure everything has been fixed then clear error codes saved onto car system, However investigate each error code so you don't keep resetting the light when its coming on due to a fault with the engine.

you need to have the codes read by a shop or if you go to Autozone they check them for free.

This could be due to a malfunctioing coolant sensor. It is located near the thermostat housing. It may be stuck in cold operation mode. You are probably getting bad gas mileage too. Make sure air filter is clean too. Good luck!

Yup, I'd have to agree if all those things check out. Funny I thought there must have been more to the question, when all it asked about was switch noise & codes. Anyway, sounds like you've checked everything, right down to power at solenoid terminal when key cycled to start, so That would be my next step.