AutoCodes – Acura – B1229 Acura

B1229 Acura Code - Open In The Sunlight Sensor Circuit

Quick Answer

The Climate Control Unit monitors the Sunlight Sensor. Common causes include Faulty Sunlight Sensor, Sunlight Sensor harness is open or shorted, Sunlight Sensor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1229 Acura indicates Open In The Sunlight Sensor Circuit.
Common causes: Common causes include Faulty Sunlight Sensor, Sunlight Sensor harness is open or shorted, Sunlight Sensor circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 2,857

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1229 Acura Description

The Climate Control Unit monitors the Sunlight Sensor. The Climate Control Unit sets the OBDII code when the Sunlight Sensor is not to factory specifications.

OBDII Code B1229 Acura - Open In The Sunlight Sensor Circuit - AutoCodes.com — B1229 Acura Code - Open In The Sunlight Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B1229 Acura?

Faulty Sunlight Sensor
Sunlight Sensor harness is open or shorted
Sunlight Sensor circuit poor electrical connection
Faulty Climate Control Unit

How to Fix the DTC B1229 Acura?

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 B1229 Acura 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 B1229 Acura code?

Need more information on how to fix the B1229 Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1229 Acura 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 B1229 Acura Code

1. What are the common symptoms of OBDII code B1229 in an Acura related to an open in the sunlight sensor circuit?

The common symptoms include the automatic climate control system not functioning properly, inaccurate readings from the sunlight sensor, and potential issues with the auto-dimming feature of the rearview mirror.

2. What causes the OBDII code B1229 in an Acura indicating an open in the sunlight sensor circuit?

The code B1229 is usually triggered by a break or malfunction in the wiring of the sunlight sensor circuit, a faulty sunlight sensor, or a poor connection in the circuit.

3. How can I diagnose the issue causing OBDII code B1229 in my Acura?

To diagnose the problem, you can start by visually inspecting the wiring and connections of the sunlight sensor circuit. Using a multimeter to test the continuity of the circuit and checking the sensor's functionality can help pinpoint the cause.

4. Can I drive my Acura with the OBDII code B1229 present?

While it may be safe to drive your Acura with the code B1229, it is recommended to address the issue promptly to ensure the proper functioning of the climate control system and other related features.

5. How can I repair the open in the sunlight sensor circuit triggering code B1229 in my Acura?

Repairing the issue involves locating the break in the wiring or addressing the faulty sensor. This may require repairing or replacing the wiring, fixing the connections, or replacing the sunlight sensor.

6. Is it possible to reset the OBDII code B1229 in my Acura without fixing the underlying issue?

Resetting the code without addressing the root cause will only temporarily clear the error code. It is crucial to repair the open in the sunlight sensor circuit to prevent the code from reoccurring.

7. Can extreme weather conditions affect the sunlight sensor circuit and trigger code B1229 in an Acura?

Yes, extreme weather conditions, such as prolonged exposure to intense sunlight or moisture, can potentially damage the wiring or sensor, leading to an open circuit and triggering the B1229 code.

8. Will a disconnected or damaged sunlight sensor impact the overall performance of my Acura's climate control system?

Yes, a disconnected or damaged sunlight sensor can affect the accuracy of the climate control system, leading to improper temperature regulation and potentially impacting the comfort of the occupants.

9. How long does it typically take to repair the open in the sunlight sensor circuit causing code B1229 in an Acura?

The repair time can vary depending on the exact cause of the issue and the complexity of accessing the sensor and wiring. In general, the repair can take anywhere from 30 minutes to a few hours.

10. Are there any preventive measures I can take to avoid encountering code B1229 related to an open in the sunlight sensor circuit in my Acura?

Regularly inspecting the condition of the wiring and connections, keeping the sensor clean and protected from harsh elements, and addressing any issues promptly can help prevent the occurrence of code B1229 in the future.