check transmission light on and cannot change gear it only stuck on fifth? Error code p1c9d?

It sounds like the TCM is going out or the input shaft speed sensor is not working correctly. For this problem you can get a CAN scanner from Amazon for about $30.00 here is a video to show you how. This can tell more of what's going on than a regular code reader.

https://youtu.be/u-4syLc-ifQ

Here is a scanner link:

https://amzn.to/3o41KcZ

Here are the instructions on how to replace the TCM and input shaft speed sensor in case this is what comes up in the diagrams below. Also, I have included the transmission wiring diagrams so you can see how the system works. Also, because the TCM is mounted with the electrical connector pointing upwards I have seen water get into the connector causing corrosion which can cause all kinds of issues. Remove the connector to check.

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Can i contact you on whatsapp or messenger please?

Error code p1c9d.

We like to keep all conversations on the site so others can benefit from it. The code P1C9D is for the Gear Shift Position Sensor which is in the shift lever. Here is the location so you can check out the connections and connector. Check out the diagrams (below). Please let us know what happens.

Can you send pics of location in c635 transmission?

This sensor location above transmission or attached to valve body?

The sensor is attached to the gear shifter itself.

This one ?

Bro, i tried to drive the car today it work normally and no error.

This car will make me mad.

It is hard to say from the picture the part would need to be removed and matched up, also the switch problem could be intermittent or had a dirty contact and will be okay now. Sometime dirt or dust can get down inside switch and cause an intermitted problem.

Okay. so, i have to go to mechanic ask him to clean sensors belong to transmission, right?

The mechanic told me today he can't replace 2-4 sensor because its sometimes work and 2 times make error i told recheck transmission from inside and clean everything then fill new fluid if an error happened again, we will replace the sensor 2-4 gear shift.

What's your onion?

Yes, it is working okay run it, if it acts up again lets change the switch out as per the trouble code.

This error happened in March first time then happened for 5 days second time between two times i travelled by the car eight times every time 100-200 KM without error.

Pro i travelled again today 150 km then take rest two hours one the way to back home after 60 km checked transmission soci stopped and disconnected the battery then connect it after 10 minutes but appear a lot of error like hand brake and traction system so i feel its battery issue.
After i arrived at home i re-disconnected and connected the battery. Everything is good and no check transmission!

What is your opinion?

You are resetting the system when the battery is disconnected so it must be a soft code and a intermittent error. You can try spraying contact cleaner inside the switch to see if that helps.

Which switch do you mean?
I measured the battery and alternator all is okay today.
Can i clean the wiring harness of valve body by electric cleaner?

Three mechanics opinions were to replace the valve body (hydraulic shift actuator), but i can't because it cost more than $2,000.00 and i can't spend this money on the car to repair and maybe it get new errors again.

In the switch near the gear shift lever not the valve body. Check out the diagrams in the post above.

Update: mechanic told me its 2-4 gear sensor position so i need full hydraulic shift actuator or replace the valve body conductor plate.

Full hydraulic shift was so expensive $2,100.00.

Can you tell me how can i get a new conductor plate? From where can i buy it it's part inside valve.

I would try Ebay and if not, it will be from the dealer. Here is what the manual says about the conductor plate. Diagrams below.

I want to ask if 2-4 gear sensor position is bad why it work normally and error after 100 km move?

I want make try to disconnect all cable from the hydraulic shift actuator clean it and connect again may be it fix the error

What do you think?

Is gear shift position sensor inside valve body on the conductor plate ???

Yes, I would clean the contacts in the switch by the steering column. I don't think there are contacts inside the shift plate, I might be wrong though.

The mechanic asked me if i changed the release bearing before, i said yes because there was a leak, then he asked me if i replaced original new i told him I'm not sure if it was original or not. so, he told me maybe it's not work good and sometimes stuck and appear error code.
(Mechanical out of range on 2nd-4th actuator)
P1D74
And p1c9d (2nd-4th gear sensor position signal incorrect)

What is your opinion bro?

Those are pictures of a throw out bearing for a stick shift car?

My mechanic found that the old mechanic who worked in it before making big problems by adding glue material to hold the bearing he decided to rebuild it again.

Oh man, that doesn't look good, let me know, I feel we are getting closer to fixing it.

He replaced the k1 bearing and this long shaft inside the transmission because the stupid mechanic before put some glue and internal oil seal damaged and there is some oil on the clutch, he told me he thinks after rebuilding the transmission everything will be good and valve body will not need replacing.

Test today good he sent to me video but i told him try to drive like 1 hour then take rest 30 mins and turn on the car again check if still there p1c9d or not .. he told me also the clutch not 100% good but its 60% because there was internal oil leak but no problem we can replace it later.

He told me since 1 hour it appear 2-4 gear sensor position so valve body must be replaced.
:(
What's your opinion?

Yep, that's what I kind of thought also so I am glad to hear the confirmation. Let us know if that fixes it please.

I think i will go to dealer because all outside mechanics i can't trust them.

I think its transmission range sensor.

Yep, that could be the problem.

Here is the part number:

Range Sensor 68197332AA $215.00

Let me know.

We tried another valve body it was for fiat x500 car move normally but check transmission light on again, but gear still move normally up and down shift normally

In old valve body when check transmission light on gear go to limp mode that is the different.

In two valves case the same code : p1c9d-00

The mechanic told me he will try valve body for renegade tomorrow, and he also told me there is short cut he tries to find so he need time to get it.

Note : he checked other sensors all work good.

Yep, it sounds like a wiring issue, let me know if you need wiring diagrams. Let me know what happens.

Replaced valve body and drive 120 km back to home everything good and test today 50 km was good. also,
Valve body with warranty 3 months.

Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.

Same problem today bro, i drove for 30 minutes inside my city suddenly check transmission and start/stop light on also, but when i accelerated car does not respond to move, then i turned it off rest 30 minutes with take off battery cable(-) then i drove it home.

I talked to someone he told me u have electric problem in the wiring harness

What can i do?

I talked to the mechanic who replaced the valve body, he said try to go home and he will tell me to disconnect (start/stop sensor) he thinks the problem from it.

What do you think?