P0722 on Ford: How to Diagnose & Fix
Output Speed Sensor Circuit No Signal
1 Ford model · 1 documented issue · 1 critical · $300-$1,200 repair
P0722 on Ford by model: symptoms, diagnosis and fix
On the F-150, P0700 is a generic "MIL request" companion code the PCM stores whenever the transmission control strategy has logged an underlying transmission fault — it points to a problem but never names it by itself. On the extremely common 6R80 six-speed automatic (F-150 2011-2020, plus the 6R80 in Expedition/Navigator), the fault that most often drives P0700 is a failing internal molded leadframe (the plastic wiring harness/module inside the transmission that houses the output/input/turbine speed sensors and connects the shift solenoids to the valve body, Ford p/n AL3Z-7G276-D). As the leadframe's soldered connections and speed sensors degrade, the PCM sets P0700 alongside the real culprit codes — typically output-speed-sensor and gear-ratio codes such as P0720, P0722, P0731, P0715 and/or P1500. Note the mid-production architecture change: on 2009-2010 6R80 units the TCM lives in a separate leadframe/Mechatronic module that talks to the PCM (so P0700 can also accompany a lost-communication U-code), while on 2011+ trucks Ford integrated the TCM logic into the PCM and companion codes store directly there. Newer F-150s (2017+) use the 10R80 10-speed, where P0700 more often stems from valve-body/solenoid and TCM software issues rather than a leadframe.
Common Symptoms
- Check-engine and/or wrench (transmission) warning light on
- Harsh, delayed, or erratic shifting
- Transmission stuck in a single gear (limp mode)
- Speedometer dropping to zero or reading intermittently
- Sudden unintended downshift into low gear at speed (rear-wheel lockup risk)
- No/late upshifts and reduced power
How to Fix
Never replace parts off P0700 alone — pull the stored companion codes first. On a 6R80 F-150 showing P0700 with speed-sensor/ratio codes (P0720/P0722/P0731/P0715/P1500) and a wrench light, the accepted repair is to drop the transmission pan and replace the internal molded leadframe assembly (AL3Z-7G276-D), refill with Mercon LV, then clear codes and road-test. Eligible 2011-2013 F-150 (and 2012-2013 Expedition/Navigator) 6R80 trucks are covered FREE under Ford Customer Satisfaction Program 19N01, which extends leadframe coverage to 10 years/150,000 miles — check VIN eligibility before paying. A related PCM reprogram (recall 19S07) prevents the dangerous unintended downshift-to-first. If the leadframe checks out, diagnose the specific companion code (solenoid, valve body, wiring/connector corrosion, or low/burnt fluid). After any valve-body or solenoid work the TCM must be reflashed with the correct solenoid-body strategy or the truck will shift harshly. On 10R80 trucks, address the named companion code (often a shift-solenoid or valve-body concern) and update TCM software.
Sources for this issue (1)
P0722 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0722 mean on a Ford?
P0722 stands for "Output Speed Sensor Circuit No Signal." This code means the transmission control module is receiving no signal at all from the output speed sensor, which measures how fast the transmission's output shaft (and therefore the vehicle) is turning. The computer relies on this sensor to time gear shifts, control the torque converter, and confirm road speed, so when the signal drops out it suspects a broken circuit or dead sensor. You may notice harsh or erratic shifting, the transmission staying in one gear, or an inaccurate or dead speedometer. It is an electrical/no-signal fault rather than just an out-of-range reading. On Ford it is documented across 1 model: F-150.
What are the most common causes of P0722?
The most common causes of P0722 are: Failed output (vehicle) speed sensor, Broken, corroded, or loose sensor wiring or connector, Open or shorted circuit between sensor and TCM, Damaged sensor reluctor/tone ring on the output shaft, Metal debris or contamination on the sensor tip, Poor ground or power supply to the sensor, Faulty transmission control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P0722 on a Ford?
Published repair estimates on Ford range from $300 to $1,200 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0722 on a different make?
View P0722 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.