AutoCodes – BMW – P14A4 BMW

P14A4 BMW Code - Exhaust Gas Temperature Sensor Open Circuit Or Short Circuit To Positive

Quick Answer

The Engine Control Module (ECM) monitors the Exhaust Gas Temperature Sensor. Common causes include Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted, Exhaust Gas Temperature 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: P14A4 BMW indicates Exhaust Gas Temperature Sensor Open Circuit Or Short Circuit To Positive.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted, Exhaust Gas Temperature 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 16,445

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 Oct 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P14A4 BMW Description

The Engine Control Module (ECM) monitors the Exhaust Gas Temperature Sensor. The ECM sets the OBDII code when the Exhaust Gas Temperature Sensor is not to factory specifications.

OBDII Code P14A4 BMW - Exhaust Gas Temperature Sensor Open Circuit Or Short Circuit To Positive - AutoCodes.com — P14A4 BMW Code - Exhaust Gas Temperature Sensor Open Circuit Or Short Circuit To Positive

What does this mean?

What are the Possible Causes of the DTC P14A4 BMW?

Faulty Exhaust Gas Temperature Sensor
Exhaust Gas Temperature Sensor harness is open or shorted
Exhaust Gas Temperature Sensor circuit poor electrical connection

How to Fix the DTC P14A4 BMW?

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 P14A4 BMW 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 P14A4 BMW code?

Need more information on how to fix the P14A4 BMW code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P14A4 BMW 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 P14A4 BMW Code

1. What are common symptoms of OBDII code P14A4 in a BMW?

- Common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the Check Engine light on the dashboard.

2. What does OBDII code P14A4 on a BMW mean?

- This code indicates an open circuit or a short circuit to positive in the exhaust gas temperature sensor system.

3. What are the possible causes of OBDII code P14A4 in a BMW?

- The code may be triggered by a faulty exhaust gas temperature sensor, damaged wiring or connectors, or issues with the sensor circuit.

4. How can I diagnose the cause of OBDII code P14A4 in my BMW?

- A thorough inspection of the exhaust gas temperature sensor, wiring, and connectors is recommended. Using a multimeter to test the sensor's resistance can help pinpoint the issue.

5. Can I drive my BMW with OBDII code P14A4?

- It is not recommended to drive your BMW with this code present, as it can lead to further damage and potential safety hazards. It is advised to address the issue promptly.

6. How can I repair OBDII code P14A4 in my BMW?

- Repair options may include replacing the exhaust gas temperature sensor, repairing damaged wiring or connectors, or resetting the fault code after fixing the underlying issue.

7. Will OBDII code P14A4 cause emissions problems in my BMW?

- Yes, this code can lead to increased emissions and may cause your BMW to fail emission tests. It is important to address the issue to maintain proper emission levels.

8. How much does it cost to fix OBDII code P14A4 in a BMW?

- The cost of fixing this code can vary depending on the specific cause of the issue. Replacing the sensor or repairing wiring typically ranges from $100 to $400, including parts and labor.

9. Can I clear OBDII code P14A4 in my BMW without fixing the underlying issue?

- Clearing the fault code without addressing the underlying problem is not recommended, as the issue will likely reoccur and could potentially cause further damage to your vehicle.

10. Is it necessary to reset the ECU after repairing OBDII code P14A4 in my BMW?

- It is recommended to reset the Engine Control Unit (ECU) after fixing the issue to clear the fault code and ensure proper functioning of the system.