AutoCodes – Ford – P1533 Ford

P1533 Ford Code - AAI Circuit Malfunction

Quick Answer

P1533 Ford indicates AAI Circuit Malfunction. Common causes for P1533 Ford include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues. 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: P1533 Ford indicates AAI Circuit Malfunction.
Common causes: Common causes for P1533 Ford include wiring or connector problems, a faulty related sensor or actuator, and control module or calibration issues.
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 4,593

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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Table of contents Created and updated by William Orellana on Aug 29, 2019

Description
How To Fix
Cost to Diagnose
FAQs
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Code P1533 Ford Description

OBDII Code P1533 Ford - AAI Circuit Malfunction - AutoCodes.com — P1533 Ford Code - AAI Circuit Malfunction

How to Fix the DTC P1533 Ford?

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 P1533 Ford 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 P1533 Ford code?

Need more information on how to fix the P1533 Ford code? Get Access to Factory Service Manuals

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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 P1533 Ford Code

1. What are the common symptoms of OBDII code P1533 Ford (AAI Circuit Malfunction)?

- Common symptoms include rough idling, engine stalling, poor acceleration, and the Check Engine Light being illuminated.

2. What are the possible causes of OBDII code P1533 Ford?

- The code P1533 Ford is typically caused by a faulty AAI (Air Assist Injector) circuit, damaged wiring, or a defective AAI control module.

3. How can I diagnose OBDII code P1533 Ford?

- Diagnosing code P1533 involves using a scan tool to read the code, inspecting the AAI circuit components for damage, and testing the AAI control module for proper function.

4. Can I still drive my vehicle with OBDII code P1533 Ford?

- It is generally not recommended to drive your vehicle with code P1533 present, as it can lead to poor engine performance and potential further damage if left unresolved.

5. How can I repair OBDII code P1533 Ford?

- Repairing code P1533 involves repairing or replacing any damaged wiring in the AAI circuit, replacing the faulty AAI control module, and clearing the code with a scan tool.

6. Is it possible to reset OBDII code P1533 Ford without fixing the issue?

- While you can clear the code temporarily with a scan tool, the underlying issue causing code P1533 will need to be addressed to prevent the code from reappearing.

7. Are there any DIY tips for fixing OBDII code P1533 Ford?

- DIY tips include checking the AAI circuit wiring for damage, ensuring all connections are secure, and consulting a service manual for specific troubleshooting steps.

8. How much does it typically cost to fix OBDII code P1533 Ford at a repair shop?

- The cost of repairing code P1533 Ford can vary depending on the extent of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a faulty AAI circuit affect the overall performance of the vehicle?

- Yes, a faulty AAI circuit can lead to poor engine performance, reduced fuel efficiency, and potential drivability issues if not addressed promptly.

10. How long does it take to repair OBDII code P1533 Ford?

- The repair time for code P1533 Ford can vary depending on the complexity of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.