P0722 on Hyundai
Output Speed Sensor Circuit No Signal
P0722 on Hyundai vehicles indicates output speed sensor circuit no signal. Au7o has documented this code across 1 Hyundai model — most commonly on Elantra. 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. Typical repair costs on Hyundai range from $150 to $450, depending on the specific model and root cause.
Common Causes of P0722
- •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)
P0722 on Hyundai by Model
Hyundai Elantra(1 issue)
- Automatic Transmission Input/Output Speed Sensor Failure Causing Harsh Shifting2001-2006
Owners of automatic-transmission Elantras from this generation frequently report sudden harsh shifts, incorrect gear selection, limp mode, or a stuck speedometer caused by failing transmission speed sensors. Hyundai service literature and repair databases commonly reference input and output speed sensor faults on these vehicles. The problem often appears intermittently at first, then becomes more consistent as the sensor signal drops out.
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What does P0722 mean on Hyundai?▼
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 Hyundai specifically, this code is documented across 1 model.
What causes P0722 on Hyundai vehicles?▼
Common causes on Hyundai: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0722 on a Hyundai?▼
Repair costs on Hyundai range from $150 to $450, depending on the specific model and root cause.
Which Hyundai models have P0722 documented?▼
Au7o has documented P0722 on 1 Hyundai model: Elantra.