AutoCodesAudi – P1252 Audi

P1252 Audi Code - Start Of Cold Start Injector Open/Short To Ground

Quick Answer

P1252 Audi indicates Start Of Cold Start Injector Open/Short To Ground. Common causes include Faulty Cold Start Injector, Cold Start Injector harness is open or shorted, Cold Start Injector 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
P1252 Audi indicates Start Of Cold Start Injector Open/Short To Ground.
Common causes
Common causes include Faulty Cold Start Injector, Cold Start Injector harness is open or shorted, Cold Start Injector 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,360
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 22, 2019
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Code P1252 Audi Description

OBDII Code P1252 Audi - Start Of Cold Start Injector Open/Short To Ground - AutoCodes.com
P1252 Audi Code - Start Of Cold Start Injector Open/Short To Ground

What are the Possible Causes of the DTC P1252 Audi?

  • Faulty Cold Start Injector
  • Cold Start Injector harness is open or shorted
  • Cold Start Injector circuit poor electrical connection

How to Fix the DTC P1252 Audi?

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 P1252 Audi 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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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 P1252 Audi Code

What does the OBDII code P1252 mean on an Audi?

P1252 indicates an issue with the cold start injector circuit, specifically an open or short to ground that prevents proper operation.

What are the common symptoms of code P1252 in an Audi?

Symptoms may include difficulty starting the engine when cold, rough idling, poor fuel efficiency, or a stored check engine light.

What causes the P1252 code on an Audi?

Common causes include a faulty cold start injector, damaged wiring or connectors in the injector circuit, or a problem with the engine control module (ECM).

How do I diagnose the P1252 code on an Audi?

You can diagnose by inspecting the cold start injector, checking the wiring and connectors for damage, and testing the circuit for continuity using a multimeter.

Can a bad cold start injector trigger the P1252 code?

Yes, a malfunctioning cold start injector can prevent proper fuel delivery during startup and trigger the P1252 code.

Is it safe to drive an Audi with the P1252 code?

While the vehicle may still be drivable, prolonged issues with cold starts can lead to poor engine performance and increased wear, so prompt diagnosis is recommended.

How can I fix the P1252 code on an Audi?

Repairs may involve replacing the cold start injector, repairing or replacing damaged wiring, or updating/replacing the ECM if necessary.

How much does it cost to fix code P1252 on an Audi?

Repair costs vary depending on the specific issue but can range from $100 to $500 for parts and labor, excluding ECM replacement.

Can a P1252 code be cleared without fixing the issue?

Clearing the code without addressing the underlying fault will likely result in the code returning and continued symptoms.

What tools are needed to troubleshoot the P1252 code in an Audi?

You’ll need an OBDII scanner, a multimeter for circuit testing, and basic automotive tools for inspecting and repairing components.

Discuss the causes and fixes for P1252 Audi OBDII Code

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