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Code P0722

Quick reference

P0722 at a glance

Plain-language meaning
This code means that the car's computer isn't getting any information from a sensor that tells how fast the wheels are turning.
Urgency
Moderate – Addressing this issue promptly can prevent further transmission damage.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the car's computer isn't getting any information from a sensor that tells how fast the wheels are turning.

Explanation

The P0722 code indicates that the transmission control module (TCM) is not receiving a signal from the output shaft speed sensor, which measures the rotational speed of the transmission's output shaft.

Technical description

The output shaft speed sensor is responsible for providing the TCM with data regarding the speed of the transmission's output shaft. This information is crucial for the TCM to manage transmission shift timing and operation. When the sensor fails to send a signal, the TCM cannot accurately control the transmission, leading to potential drivability issues.

Symptoms

• Check Engine Light is on

• Erratic or harsh shifting

• Transmission stuck in a single gear

Common Causes

• Faulty output shaft speed sensor

• Damaged or corroded wiring/connectors

• Faulty transmission control module (TCM)

Glossary

TCM: Transmission Control Module

OBD-II: On-Board Diagnostics II

Diagnosis steps

• Use an OBD-II scanner to confirm the P0722 code.

• Inspect the output shaft speed sensor and its wiring for damage.

• Test the sensor's resistance and output signal.

Repair procedures

• Replace the output shaft speed sensor if faulty.

• Repair or replace damaged wiring/connectors.

• Replace or reprogram the TCM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Honda Accord

• Toyota Camry

Preventive measures

• Regularly inspect and maintain transmission components.

• Ensure wiring and connectors are clean and secure.

• Perform routine diagnostic checks.

Error code type

Sensor Issue

User experience recommendations

• Avoid driving the vehicle if shifting becomes erratic.

• Have the vehicle inspected by a professional mechanic promptly.

Warranty information

Check if the vehicle's powertrain warranty covers sensor-related issues.

Historical data

P0722 has been a common issue in vehicles with automatic transmissions, often due to sensor failures or wiring issues.

Urgency level

Moderate – Addressing this issue promptly can prevent further transmission damage.

Testing conditions

• Vehicle at operating temperature

• Transmission in gear

Component location

The output shaft speed sensor is typically located on the transmission housing, near the output shaft.

FAQs

Q: Can I drive with a P0722 code?
A: It's not recommended to drive with a P0722 code, as it can lead to further transmission damage.

Q: How do I reset the P0722 code?
A: After repairs, you can reset the code using an OBD-II scanner. However, ensure the issue is fixed first.

Optional diagnostic gear

Tools that may help diagnose P0722

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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