AutoCodes – BMW – P1502 BMW

P1502 BMW Code - Idle Speed Control Valve Closing Solenoid Control Circuit Signal High or Low

Quick Answer

P1502 BMW indicates Idle Speed Control Valve Closing Solenoid Control Circuit Signal High or Low. Common causes include Faulty Idle Speed Control Valve, Idle Speed Control Valve harness is open or shorted, Idle Speed Control Valve 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
P1502 BMW indicates Idle Speed Control Valve Closing Solenoid Control Circuit Signal High or Low.
Common causes
Common causes include Faulty Idle Speed Control Valve, Idle Speed Control Valve harness is open or shorted, Idle Speed Control Valve 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 4,968
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 25, 2019
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Code P1502 BMW Description

OBDII Code P1502 BMW - Idle Speed Control Valve Closing Solenoid Control Circuit Signal High or Low - AutoCodes.com
P1502 BMW Code - Idle Speed Control Valve Closing Solenoid Control Circuit Signal High or Low

What are the Possible Causes of the DTC P1502 BMW?

  • Faulty Idle Speed Control Valve
  • Idle Speed Control Valve harness is open or shorted
  • Idle Speed Control Valve poor electrical connection
  • Large vacuum leak on engine

How to Fix the DTC P1502 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 P1502 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 P1502 BMW code?

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Need Help with the Code?

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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 P1502 BMW Code

What does the OBDII code P1502 mean for a BMW?

P1502 indicates an issue with the idle speed control valve closing solenoid control circuit, where the signal is either too high or too low.

What are the common symptoms of P1502 on a BMW?

Common symptoms include rough idling, difficulty starting the engine, poor acceleration, and possibly a check engine light.

What causes the P1502 code to appear?

This code can be caused by a malfunctioning idle speed control valve, damaged wiring or connectors, or issues with the engine control module (ECM).

Can a dirty idle control valve trigger the P1502 code?

Yes, a dirty or clogged idle control valve may affect its operation and result in the P1502 code.

How do you diagnose the P1502 code on a BMW?

Diagnosis involves inspecting the idle speed control valve, checking for wiring or connector damage, and testing the solenoid circuit using a multimeter.

Can driving with the P1502 code damage the engine?

While it may not cause immediate damage, prolonged driving with this issue can lead to poor engine performance and increased wear on components.

How can the P1502 code be fixed?

Repairs may involve cleaning or replacing the idle speed control valve, repairing damaged wiring, or replacing the ECM if necessary.

Is the P1502 code specific to BMW vehicles?

Yes, P1502 is a manufacturer-specific code for BMW, related to the idle speed control valve circuit.

How much does it cost to repair the P1502 code on a BMW?

Repair costs can vary widely, from $100 to $500 or more, depending on whether cleaning, wiring repair, or component replacement is needed.

Can a software update fix the P1502 code?

In rare cases, a software update to the ECM may resolve the issue if the problem is related to incorrect signal processing.

Discuss the causes and fixes for P1502 BMW OBDII Code

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