P0720 on Jeep
Output Speed Sensor Circuit Malfunction
P0720 on Jeep vehicles indicates output speed sensor circuit malfunction. Au7o has documented this code across 1 Jeep model — most commonly on Cherokee. P0720 indicates a malfunction in the transmission output speed sensor circuit. The output speed sensor measures how fast the transmission's output shaft is turning, which the computer uses to calculate vehicle speed, control shift timing, and manage torque converter lockup. When the signal is missing or implausible, the transmission may shift harshly, get stuck in one gear (limp mode), or the speedometer may read incorrectly. The fault is usually in the sensor, its wiring, or the connector, though internal transmission issues can also be responsible.
Common Causes of P0720
- •Failed output (vehicle) speed sensor
- •Damaged wiring, connector, or corrosion in the sensor circuit
- •Metal debris on the sensor tip or damaged reluctor ring
- •Open or short in the signal circuit
- •Low or contaminated transmission fluid affecting components
- •Poor ground or reference voltage to the sensor
- •Faulty transmission control module (TCM/PCM)
P0720 on Jeep by Model
Jeep Cherokee(1 issue)
- Recall 16V529000: 9-Speed Automatic Can Shift Itself Into Neutral (Transmission Harness Crimps)2014-2015
Chrysler (FCA US LLC) recalled 2014-2015 Jeep Cherokee models built with the 9-speed automatic transmission because the transmission sensor clusters may have insufficient crimps in the transmission wire harness. With a bad crimp, the transmission can unexpectedly shift into neutral on its own. NHTSA classifies the resulting loss of drive as an increased crash risk, since the Cherokee can drop out of gear without warning while the driver is relying on it to keep moving. The Cherokee is one of several FCA vehicles sharing the 9-speed in this campaign; the 329,540-unit figure NHTSA lists covers the entire campaign across all of those vehicles, not the Cherokee alone. FCA's internal number for the recall is S55, and the owner notification began November 7, 2016.
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View P0720 across all makes →Frequently Asked Questions
What does P0720 mean on Jeep?▼
P0720 stands for "Output Speed Sensor Circuit Malfunction." P0720 indicates a malfunction in the transmission output speed sensor circuit. The output speed sensor measures how fast the transmission's output shaft is turning, which the computer uses to calculate vehicle speed, control shift timing, and manage torque converter lockup. When the signal is missing or implausible, the transmission may shift harshly, get stuck in one gear (limp mode), or the speedometer may read incorrectly. The fault is usually in the sensor, its wiring, or the connector, though internal transmission issues can also be responsible. On Jeep specifically, this code is documented across 1 model.
What causes P0720 on Jeep vehicles?▼
Common causes on Jeep: Failed output (vehicle) speed sensor, Damaged wiring, connector, or corrosion in the sensor circuit, Metal debris on the sensor tip or damaged reluctor ring, Open or short in the signal circuit, Low or contaminated transmission fluid affecting components. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0720 on a Jeep?▼
Repair costs vary widely depending on the root cause and specific Jeep model.
Which Jeep models have P0720 documented?▼
Au7o has documented P0720 on 1 Jeep model: Cherokee.