Do you have to get a new transmission if you get a p1716 error code

The error code "ER20" on a Franklin Log Skidder Q90 likely indicates an issue with the transmission. The exact meaning of this error code may vary depending on the specific skidder model and manufacturer, but it typically indicates a problem with the transmission control system or a sensor within the transmission.
If the transmission will not take gear, this is a clear indication that there is a problem that needs to be addressed. The issue could be with the transmission control system, the transmission itself, or even with the engine.
If you're experiencing this issue, it's recommended to have the skidder inspected by a qualified mechanic or dealership as soon as possible. They will be able to diagnose the problem, determine the cause of the error code, and repair the transmission to ensure it is functioning properly.
If the problem is not addressed, it may cause further damage to the transmission and result in more expensive repairs. Additionally, operating a skidder with a transmission issue can also pose a safety risk to the operator and anyone nearby.

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Replace the neutral safety switch/ range selector switch. This should take care of both codes. Mounted on the transmission under where the shift cable connects.

You need to get an error code (DTC) scan and find out the specific error code. Follow up on the specific error. There are many causes to poor idling if that is the problem (e.g. a leaking turbo bypass valve actuator).
A common cause of this behavior is a faulty transmission TCC lockup (SL) solenoid. If it is this, be aware that the car manual insists on regular transmission servicing - old fluid can cause this problem with the lockup and all of the shift solenoids. This transmission was made in Japan and is expensive to repair.

You should first fill the transmission fluid to the correct with genuine Nissan Matic J Transmission fluid and replacing the transmission input shaft speed sensor. Its costs approximately $113 at the dealer for the sensor.

oh my you need a transmission ...have the auto parts store read your codes and reset them ..I have had this problem with some of my vehicles that i work on ,,try changing the transmission filter first then add good new fluid ..tell me if this repairs the problem ..a new transmission is very expensive ,,the replacing that filter is not

Its the TCM- Replace the Transmission Control Module. WITH THE DRBIII PERFORM QUICK LEARN AND REPROGRAM PINION FACTOR.
The transmission Control Module (TCM) is located behind the passenger fender and is fastened to the frame rail forward of the suspension. Here is a picture of it...

That basically means the computer that controls the transmission senses a problem. You need to take it to a dealer to have the code read. Normally the OBD-II scanners don't read transmission error codes. It could simply be a sensor or something much more expensive.

go to autozone and get the codes. they will test for free.

Message Center Display
The following messages may be displayed on the message center.
This message center will display CHECK TRANSMISSION if the following codes have been set.


DTC Codes Possible Faults P1746, P1747, P1760 Electronic pressure control solenoid P0743, P1767 Torque converter clutch circuit P0750, P0755, P0760 Shift solenoid circuit P1714, P1715, P1716 ISIG P0731, P0732, P0733, P0734 SFT error P0741, P1742, P1743, P1744 Torque converter clutch error P1783 Over temperature P1700 NEV error P0712, P0713, P0710,
P1710, P1713, P1718 Transmission fluid
temperature error P0705, P0708, P1704 Transmission range sensor error P0500, P0503 Vehicle speed sensor error P0715 Turbine shaft speed error
NOTE: For codes. For additional information, refer to Diagnostic Trouble Code Chart.

Might be really simple - but EXPENSIVE! I had a similar fault - apparently the first planet set breaks up. Cure - a new box. Price - crippling!

Don't be tempted to skimp on the box. Get a rebuild from a reputable supplier. A s/h box will set you back around £5-600 in UK where a rebuilt (guaranteed) will be more like £1800. The thing with the cheap box is it costs about the same to fit but you don't know how good it is till it's too late! Then you're still shopping for another but you're £600 lighter!

Also, you could be buying other faults. If the speed sensor has had a problem - the box will change badly (snatching) and that will be another £250 where the expensive box will have ahad one fitted!