AutoCodes – Jaguar – P1229 Jaguar

P1229 Jaguar Code - Throttle Motor Control Circuit Malfunction

Quick Answer

The Engine Control Module (ECM) monitors the Throttle Motor Control Circuit. Common causes include Faulty Throttle Motor, Faulty Throttle Motor Relay, Throttle Motor 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: P1229 Jaguar indicates Throttle Motor Control Circuit Malfunction.
Common causes: Common causes include Faulty Throttle Motor, Faulty Throttle Motor Relay, Throttle Motor 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 13,674

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 Feb 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1229 Jaguar Description

The Engine Control Module (ECM) monitors the Throttle Motor Control Circuit. The ECM sets the OBDII code when the Throttle Motor is not to factory specifications.

OBDII Code P1229 Jaguar - Throttle Motor Control Circuit Malfunction - AutoCodes.com — P1229 Jaguar Code - Throttle Motor Control Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P1229 Jaguar?

Faulty Throttle Motor
Faulty Throttle Motor Relay
Throttle Motor harness is open or shorted
Throttle Motor circuit poor electrical connection

How to Fix the DTC P1229 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 P1229 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.

Need more information about the P1229 Jaguar code?

Need more information on how to fix the P1229 Jaguar code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1229 Jaguar code diagnosed by a professional: Find a repair shop in your area

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 P1229 Jaguar Code

1. What are the common symptoms of OBDII code P1229 in a Jaguar related to throttle motor control circuit malfunction?

The common symptoms include reduced engine power, rough idling, stalling, and difficulty accelerating.

2. What are the possible causes of the OBDII code P1229 in a Jaguar indicating a throttle motor control circuit malfunction?

Potential causes may include a faulty throttle body, damaged wiring or connectors in the throttle motor circuit, or issues with the engine control module (ECM).

3. How can I diagnose the OBDII code P1229 in my Jaguar for a throttle motor control circuit malfunction?

Diagnosis typically involves using an OBDII scanner to retrieve the code, conducting a visual inspection of the throttle body and related wiring, and performing voltage tests on the throttle motor circuit components.

4. What are some repair tips for addressing the OBDII code P1229 in a Jaguar due to a throttle motor control circuit malfunction?

Repair tips may involve cleaning the throttle body, repairing or replacing damaged wiring or connectors, or recalibrating the throttle system using a diagnostic tool.

5. Can driving with the OBDII code P1229 related to a throttle motor control circuit malfunction cause further damage to my Jaguar?

Continued driving with this issue may lead to poor engine performance, reduced fuel efficiency, and potential long-term damage to the engine or related components.

6. Is it safe to reset the OBDII code P1229 in my Jaguar without addressing the underlying throttle motor control circuit malfunction?

Resetting the code without fixing the root cause may temporarily clear the warning light, but the issue will likely resurface, leading to ongoing performance problems.

7. How much does it typically cost to repair the OBDII code P1229 in a Jaguar caused by a throttle motor control circuit malfunction?

The cost of repair can vary depending on the specific cause, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can I attempt to fix the OBDII code P1229 related to a throttle motor control circuit malfunction in my Jaguar myself?

While some basic troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing this issue often requires specialized tools and expertise, so it's recommended to consult a professional mechanic.

9. Are there any preventive measures I can take to avoid encountering the OBDII code P1229 in my Jaguar due to throttle motor control circuit malfunction?

Regularly maintaining your vehicle, including cleaning the throttle body and inspecting wiring connections, can help prevent issues that may trigger this code.

10. How long does it typically take to repair the OBDII code P1229 in a Jaguar associated with a throttle motor control circuit malfunction?

The repair time can vary based on the specific cause and complexity of the issue, but it may take a few hours to a full day for a mechanic to diagnose and address the problem effectively.