AutoCodes – Jaguar – C1222 Jaguar

C1222 Jaguar Code - Speed Wheel Mismatch

Quick Answer

The ABS module receives wheel speed readings from each wheel speed sensor and processes this information to determine if an ABS event is necessary. Common causes include Wheels or tires mismatch, Faulty Wheel Speed Sensor, Wheel Speed Sensor harness is open or shorted. 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: C1222 Jaguar indicates Speed Wheel Mismatch.
Common causes: Common causes include Wheels or tires mismatch, Faulty Wheel Speed Sensor, Wheel Speed Sensor harness is open or shorted.
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 1,274

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 Dec 04, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1222 Jaguar Description

The ABS module receives wheel speed readings from each wheel speed sensor and processes this information to determine if an ABS event is necessary. The wheel speed sensor detects the magnetic field of the sensor ring as it passes the face of the active wheel speed sensor.
The active wheel speed sensor generates a signal that is sent to the ABS module. The wheel speed sensor circuitry connects to the ABS module through 2 wires and a connector at each wheel speed sensor. When the ignition is turned to the RUN position, the ABS module carries out a self-test by sending a reference voltage to all of the wheel speed sensors through their circuitry to determine if they are functional.
The ABS module continuously monitors and compares the rotational speed of each wheel and when it detects an impending wheel lock, modulates brake pressure to the appropriate brake caliper. This is accomplished by triggering the hydraulic control unit (HCU) to open and close the appropriate solenoid valves. Once the affected wheel returns to normal speed, the ABS module returns the solenoid valves to their normal position and normal (base) braking resumes.

OBDII Code C1222 Jaguar - Speed Wheel Mismatch - AutoCodes.com — C1222 Jaguar Code - Speed Wheel Mismatch

What does this mean?

What are the Possible Causes of the DTC C1222 Jaguar?

Wheels or tires mismatch
Faulty Wheel Speed Sensor
Wheel Speed Sensor harness is open or shorted
Wheel Speed Sensor circuit poor electrical connection

How to Fix the DTC C1222 Jaguar?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1222 Jaguar 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.

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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.

Frequently Asked Questions about C1222 Jaguar Code

1. What are the common symptoms of OBDII code C1222 in a Jaguar related to Speed Wheel Mismatch?

The common symptoms include ABS warning lights illuminated on the dashboard, traction control system malfunctions, and possibly abnormal braking behavior.

2. What could cause the Speed Wheel Mismatch error code C1222 in a Jaguar?

The most common causes of this error code are faulty wheel speed sensors, damaged wiring or connectors, wheel speed sensor alignment issues, or problems with the ABS module.

3. How can I diagnose the Speed Wheel Mismatch issue in my Jaguar when OBDII code C1222 appears?

You can start by checking the wheel speed sensors for any physical damage or misalignment, inspecting the wiring and connectors for any signs of wear or corrosion, and utilizing a diagnostic tool to analyze the ABS system for specific faults.

4. Can a DIY enthusiast repair the Speed Wheel Mismatch issue caused by OBDII code C1222 in a Jaguar?

Depending on the underlying cause, some DIY repairs may be possible, such as replacing a faulty wheel speed sensor or repairing damaged wiring. However, more complex issues may require professional diagnosis and repair.

5. Is it safe to drive my Jaguar with the OBDII code C1222 Speed Wheel Mismatch error?

It is not recommended to drive the vehicle with this error code present, as it can affect the proper functioning of the ABS and traction control systems, potentially compromising the vehicle's safety.

6. How can I prevent the Speed Wheel Mismatch error code C1222 from recurring in my Jaguar?

Regular maintenance, such as checking and cleaning the wheel speed sensors, inspecting the wiring harness for damage, and addressing any alignment issues promptly, can help prevent the recurrence of this error code.

7. Will resetting the OBDII code C1222 Speed Wheel Mismatch in my Jaguar make the issue go away?

Resetting the code may temporarily clear the warning lights, but it will not fix the underlying problem causing the Speed Wheel Mismatch issue. It is essential to diagnose and address the root cause to prevent further issues.

8. How much does it typically cost to repair the Speed Wheel Mismatch issue related to OBDII code C1222 in a Jaguar?

The cost of repairing this issue can vary depending on the specific cause, parts needed, and labor rates. It is advisable to obtain quotes from reputable repair shops or Jaguar dealerships for an accurate estimate.

9. Can extreme weather conditions or road debris trigger the OBDII code C1222 Speed Wheel Mismatch in a Jaguar?

Yes, extreme weather conditions like heavy rain, snow, or road debris can potentially affect the wheel speed sensors, leading to the Speed Wheel Mismatch issue and triggering the error code C1222 in a Jaguar.

10. How long does it typically take to repair the Speed Wheel Mismatch issue associated with OBDII code C1222 in a Jaguar?

The repair time can vary depending on the specific cause of the issue and the complexity of the repair. Simple fixes like sensor replacement may take a few hours, while more intricate issues may require more time for diagnosis and repair.