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Old 04-02-2018, 12:06 PM   #1
wideopen
 
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P0988 Transmission Fluid Pressure Sensor Location

2014 Dodge w/68RFE

P0988 Transmission Fluid Pressure Sensor / Switch E Circuit Range Performance

The Transmission Fluid Pressure Sensor/Switch (TFPS) is usually found attached to the side of the valve body inside the transmission, although sometimes it may be found screwed into the side of the transmission case/body itself.


Anyone know where this sensor is for sure on this Trans?



Typically the causes for this code to set are:
Open in the signal circuit to the TFPS sensor - possible
Short to voltage in the signal circuit to the TFPS sensor - possible
Short to ground in the signal circuit to the TFPS sensor - possible
Failed TFPS Sensor – likely
Internal mechanical transmission issue -possible
Failed PCM - unlikely (programming required after replacement)
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Old 04-02-2018, 12:22 PM   #2
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Quote:
Originally Posted by wideopen View Post
2014 Dodge w/68RFE

P0988 Transmission Fluid Pressure Sensor / Switch E Circuit Range Performance

The Transmission Fluid Pressure Sensor/Switch (TFPS) is usually found attached to the side of the valve body inside the transmission, although sometimes it may be found screwed into the side of the transmission case/body itself.


Anyone know where this sensor is for sure on this Trans?



Typically the causes for this code to set are:
Open in the signal circuit to the TFPS sensor - possible
Short to voltage in the signal circuit to the TFPS sensor - possible
Short to ground in the signal circuit to the TFPS sensor - possible
Failed TFPS Sensor – likely
Internal mechanical transmission issue -possible
Failed PCM - unlikely (programming required after replacement)
If I remember correctly, top rear passanger side of trans housing.

And easy to access.
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EFI by ATP in Idaho, s364.5sxe/FI ETR s488 with V2 cover, II CP3 and injectors, Hamilton springs/ pushrods and 188/220, suncoast Comp68 getting it all to the ground.

2014 BMW X6 ///M factory 560hp twin turbo AWD
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Old 04-02-2018, 12:58 PM   #3
wideopen
 
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Not my truck BTW.

The trans guy keeps telling me its built into the valve body and has replaced it twice, and is now blaming it on the ECM and the Tuning.
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Old 04-02-2018, 01:09 PM   #4
blackmega3500
 
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Quote:
Originally Posted by wideopen View Post
Not my truck BTW.

The trans guy keeps telling me its built into the valve body and has replaced it twice, and is now blaming it on the ECM and the Tuning.
Here's straight from my ATSG 68 guide....

Click the image to open in full size.
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07.5 6.7l Mega-longbed conversion dually with 22.5s
EFI by ATP in Idaho, s364.5sxe/FI ETR s488 with V2 cover, II CP3 and injectors, Hamilton springs/ pushrods and 188/220, suncoast Comp68 getting it all to the ground.

2014 BMW X6 ///M factory 560hp twin turbo AWD
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Old 04-02-2018, 01:11 PM   #5
wideopen
 
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Thank you!
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TS Performance ~ Diesel Performance Converters~ Fleece Performance ~ Suncoast ~ Fast Layne ~ Pro Street Diesel
Hellmann Performance ~ Keating Machine ~ Engineered Diesel ~ Mumau Diesel ~ GoGo Diesel ~ Hamilton Cams ~ Diesel Innovations ~ Grand Rock Exhaust ~ Smarty


"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."


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