P0934: Hydraulic Pressure Sensor Circuit Low
What Does P0934 Mean?
P0934 is a diagnostic trouble code indicating: Hydraulic Pressure Sensor Circuit Low. This code relates to the transmission system. It has been reported in NHTSA complaints across 2 different vehicle models.
Symptoms of P0934
- ⚠️ Check engine light illuminated
- ⚠️ Vehicle enters limp/reduced power mode
Common Causes
- 🔍 Sensor or control module malfunction
P0934 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"SERVICE TRANSMISSION CODE P0934. SOMETIMES IT'LL RUN JUST FINE NO PROBLEMS. OTHER TIMES I HAVE TO START AND TURN IT OFF SEVERAL TIMES BEFORE THE TRANSMISSION WILL WORK PROPERLY. AFTER THIS STARTED HAPPENING THE INFO CENTER STARTED DISPLAYING SERVICE SHIFTER. NO ONE WILL DIAGNOSE THE ISSUE AND CHRYS"
— Jeep Cherokee owner, 05/12/2020
"My Jeep keeps going into Limp Mode and not will completely shut off while I come to a complete stop at a stop light. And while I’m driving the engine light comes on. I can cycle it through to get the engine light off. Then it runs fine. This has been happening since after I bought it. I’ve taken bac"
— Jeep Cherokee owner, 10/24/2024
"The vehicle was sold by DriveTime (Highland, Indiana) on August 29, 2025, with a known safety recall (Y18 – Transmission Oil Cooler Hose, NHTSA 21V-310) that had not been properly repaired. Jeep dealership documentation dated October 17, 2025, shows the recall was only “inspected” but no repair was "
— Jeep Cherokee owner, 10/17/2025
Source: NHTSA Complaints Database
Most Reported Vehicles for P0934
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | JEEP CHEROKEE | |
| 2 | CHRYSLER 200 |
P0934 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Frequently Asked Questions
Is it safe to drive with this transmission code?
Do I need a full transmission rebuild?
How much does a transmission repair cost?
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Test the relevant sensor(s) with a multimeter before replacing
- 🔧 Check transmission fluid level and condition; top off or change if needed
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.