AutoCodes – BMW – P1509 BMW

P1509 BMW Code - Idle Speed Control Valve Opening Solenoid Control Circuit Electrial

Quick Answer

P1509 BMW indicates Idle Speed Control Valve Opening Solenoid Control Circuit Electrial. Common causes include Faulty Idle Air Control (IAC) valve, Idle Air Control (IAC) valve harness is open or shorted, Idle Air Control (IAC) valve 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: P1509 BMW indicates Idle Speed Control Valve Opening Solenoid Control Circuit Electrial.
Common causes: Common causes include Faulty Idle Air Control (IAC) valve, Idle Air Control (IAC) valve harness is open or shorted, Idle Air Control (IAC) valve 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 11,645

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1509 BMW Description

OBDII Code P1509 BMW - Idle Speed Control Valve Opening Solenoid Control Circuit Electrial - AutoCodes.com — P1509 BMW Code - Idle Speed Control Valve Opening Solenoid Control Circuit Electrial

What does this mean?

What are the Possible Causes of the DTC P1509 BMW?

Faulty Idle Air Control (IAC) valve
Idle Air Control (IAC) valve harness is open or shorted
Idle Air Control (IAC) valve circuit poor electrical connection

How to Fix the DTC P1509 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 P1509 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.

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Need more information on how to fix the P1509 BMW 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 P1509 BMW Code

1. What are the common symptoms of OBDII code P1509 in a BMW related to the Idle Speed Control Valve Opening Solenoid Control Circuit Electrical?

The common symptoms include rough idle, stalling at idle, fluctuating idle speed, and potential engine hesitation.

2. What are the possible causes of OBDII code P1509 in a BMW?

The causes could be a faulty idle speed control valve, damaged wiring or connectors in the solenoid control circuit, or a malfunctioning engine control module.

3. How can I diagnose the issue causing OBDII code P1509 in my BMW?

You can use a diagnostic scanner to read the code and perform a visual inspection of the wiring and connectors in the idle speed control valve circuit. Testing the control valve and related components may also be necessary.

4. Can I drive my BMW with OBDII code P1509 present?

It is not recommended to drive the vehicle with this code present, as it can lead to further engine issues and potentially cause the vehicle to stall unexpectedly.

5. How can I repair OBDII code P1509 in my BMW?

Repair options include replacing the faulty idle speed control valve, repairing or replacing damaged wiring or connectors, and resetting the engine control module after the repair.

6. Are there any DIY tips for addressing OBDII code P1509 in a BMW?

While some basic diagnostics can be performed at home, it is recommended to seek professional help for a thorough diagnosis and repair of the issue to ensure proper functioning of the idle speed control system.

7. How much does it typically cost to repair OBDII code P1509 in a BMW?

The cost can vary depending on the specific issue causing the code, but it may range from a few hundred to a thousand dollars, including parts and labor.

8. Can OBDII code P1509 in a BMW be related to other engine performance issues?

Yes, this code can affect the overall performance of the engine by disrupting the idle speed control, which can lead to poor fuel efficiency and drivability issues.

9. Is it possible for OBDII code P1509 to reappear after repairs have been made?

If the root cause of the issue is not properly addressed during the repair, the code may reappear. It's important to ensure all related components are thoroughly inspected and repaired.

10. How urgent is it to address OBDII code P1509 in a BMW?

While the vehicle may still be operable with this code present, it is recommended to address the issue promptly to prevent potential engine damage and ensure optimal performance and reliability.