P0727 on 2022 Ford Maverick (XL, XLT, Lariat) — Engine Speed Input Circuit No Signal
1 vehicles · 1 makes · $150-$6,500 repair
Most Reported On
P0727 is an OBD-II diagnostic trouble code meaning “Engine Speed Input Circuit No Signal.” This code indicates the transmission computer is not receiving an engine speed (RPM) signal that it needs to manage shifting and torque converter operation. The TCM compares engine speed against transmission input/output speeds to control shift timing and converter lockup. A missing signal can cause erratic shifting, harsh engagement, or the transmission entering a fail-safe limp mode. This code is most commonly reported on 2022 Ford Maverick (XL, XLT, Lariat), with repair costs ranging from $150 to $6,500.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0727, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P0727 mean?
P0727 stands for "Engine Speed Input Circuit No Signal." This code indicates the transmission computer is not receiving an engine speed (RPM) signal that it needs to manage shifting and torque converter operation. The TCM compares engine speed against transmission input/output speeds to control shift timing and converter lockup. A missing signal can cause erratic shifting, harsh engagement, or the transmission entering a fail-safe limp mode.
What are the most common causes of P0727?
The most common causes of P0727 are: Faulty engine speed/crankshaft position sensor, Open or shorted wiring in the speed signal circuit, Corroded or loose connectors, Loss of signal communication between PCM and TCM, Damaged reluctor/tone ring, TCM or PCM internal fault. The specific cause varies by vehicle.
How much does it cost to fix P0727?
Repair costs for P0727 range from $150 to $6,500, depending on the vehicle and root cause.
Which vehicles are affected by P0727?
Au7o has documented P0727 across 1 vehicle models from 1 manufacturers: Ford.
Sources (4)
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.