AutoCodes – Infiniti – P0722 Infiniti

P0722 Infiniti Code - Vehicle Speed Sensor Circuit Fault

Quick Answer

The speed sensor (revolution sensor) detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. Common causes include Faulty Revolution Sensor, Revolution Sensor harness is open or shorted, Revolution Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0722 Infiniti indicates Vehicle Speed Sensor Circuit Fault.
Common causes: Common causes include Faulty Revolution Sensor, Revolution Sensor harness is open or shorted, Revolution Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 4,960

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P0722 Infiniti Description

The speed sensor (revolution sensor) detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the Transmission Control Module (TCM) which converts it into vehicle speed.

OBDII Code P0722 Infiniti - Vehicle Speed Sensor Circuit Fault - AutoCodes.com — P0722 Infiniti Code - Vehicle Speed Sensor Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P0722 Infiniti?

Faulty Revolution Sensor
Revolution Sensor harness is open or shorted
Revolution Sensor circuit poor electrical connection
Damaged EC
Damaged Transmission Control Module (TCM)

How to Fix the DTC P0722 Infiniti?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

On most Infiniti vehicles, the vehicle speed sensor is called Revolution Sensor

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0722 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0722 Infiniti code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.