AutoCodes – BMW – P1452 BMW

P1452 BMW Code - Diagnostic Module Tank Leakage Switching Solenoid Control Circuit Signal High

Quick Answer

P1452 BMW indicates Diagnostic Module Tank Leakage Switching Solenoid Control Circuit Signal High. Common causes include Faulty Diagnostic Module Tank Leakage (DMTL), DMTL harness is open or shorted, DMTL 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: P1452 BMW indicates Diagnostic Module Tank Leakage Switching Solenoid Control Circuit Signal High.
Common causes: Common causes include Faulty Diagnostic Module Tank Leakage (DMTL), DMTL harness is open or shorted, DMTL 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 3,644

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 Aug 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1452 BMW Description

OBDII Code P1452 BMW - Diagnostic Module Tank Leakage Switching Solenoid Control Circuit Signal High - AutoCodes.com — P1452 BMW Code - Diagnostic Module Tank Leakage Switching Solenoid Control Circuit Signal High

What does this mean?

What are the Possible Causes of the DTC P1452 BMW?

Faulty Diagnostic Module Tank Leakage (DMTL)
DMTL harness is open or shorted
DMTL circuit poor electrical connection

How to Fix the DTC P1452 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 P1452 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 P1452 BMW code?

Need more information on how to fix the P1452 BMW code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1452 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 P1452 BMW Code

1. What are the common symptoms of OBDII code P1452 in a BMW?

- Common symptoms include the Check Engine Light coming on, issues with the fuel system, and potential difficulties starting the vehicle.

2. What could cause the OBDII code P1452 to appear in a BMW?

- This code is typically triggered by a malfunction in the Diagnostic Module Tank Leakage Switching Solenoid Control Circuit, which may be caused by wiring issues, a faulty solenoid, or a problem with the fuel tank pressure sensor.

3. How can I diagnose the root cause of OBDII code P1452 in my BMW?

- To diagnose this code, it is recommended to perform a thorough inspection of the wiring, connectors, solenoid, and fuel tank pressure sensor. Using a diagnostic scanner to read live data can also help pinpoint the issue.

4. Can I still drive my BMW with the OBDII code P1452 present?

- It is generally safe to drive your BMW with this code, but it is advisable to have the issue diagnosed and repaired as soon as possible to prevent potential damage to the vehicle's fuel system.

5. What are some repair tips for resolving OBDII code P1452 in a BMW?

- Repair tips may include checking and repairing any damaged wiring, replacing the faulty solenoid or fuel tank pressure sensor, and ensuring all connections are secure and free of corrosion.

6. Will resetting the Check Engine Light resolve OBDII code P1452 in my BMW?

- Simply resetting the Check Engine Light will not fix the underlying issue causing the code. It is important to diagnose the problem, make the necessary repairs, and clear the code using a diagnostic tool.

7. How much does it typically cost to repair OBDII code P1452 in a BMW?

- The cost of repairing this code can vary depending on the extent of the issue and the necessary repairs. Costs may include parts and labor, with prices ranging from a couple hundred to a few hundred dollars.

8. Can a DIY enthusiast fix OBDII code P1452 in a BMW?

- Depending on their skill level, a DIY enthusiast may be able to address this code by following repair guides, utilizing appropriate tools, and having a good understanding of automotive systems. However, professional help is recommended for complex issues.

9. Is OBDII code P1452 a common problem in BMW vehicles?

- While not extremely common, this code can occur in BMW vehicles, particularly in models equipped with the Diagnostic Module Tank Leakage Switching Solenoid Control Circuit.

10. How long does it typically take to repair OBDII code P1452 in a BMW?

- The repair time for this code can vary based on the specific issue and the expertise of the technician. In general, the repair process may take a few hours to half a day to complete.