AutoCodes – Generic – P1252

P1252 Code - Vacuum Reservoir Solenoid Short Circuit

Quick Answer

The Engine Control Module (ECM) detected a short to ground on the Vacuum Reservoir Solenoid control circuit Common causes include Faulty Vacuum Reservoir Solenoid, Vacuum Reservoir Solenoid harness is open or shorted, Vacuum Reservoir Solenoid 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 indicates Vacuum Reservoir Solenoid Short Circuit.
Common causes
Common causes include Faulty Vacuum Reservoir Solenoid, Vacuum Reservoir Solenoid harness is open or shorted, Vacuum Reservoir Solenoid 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 24,834
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 Description

The Engine Control Module (ECM) detected a short to ground on the Vacuum Reservoir Solenoid control circuit
OBDII Code P1252 - Vacuum Reservoir Solenoid Short Circuit - AutoCodes.com
P1252 Code - Vacuum Reservoir Solenoid Short Circuit

What are the Possible Causes of the DTC P1252?

  • Faulty Vacuum Reservoir Solenoid
  • Vacuum Reservoir Solenoid harness is open or shorted
  • Vacuum Reservoir Solenoid circuit poor electrical connection

How to Fix the DTC P1252?

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 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 P1252 code?

Need more information on how to fix the P1252 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1252 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P1252 Audi β€” Start Of Cold Start Injector Open/Short To Ground
  • P1252 BMW β€” Charge Air Pressure Actuator Short Circuit To Ground
  • P1252 Chrysler β€” Vacuum Reservoir Solenoid Short Circuit
  • P1252 Dodge β€” Vacuum Reservoir Solenoid Short Circuit
  • P1252 Ford β€” Fuel Pressure Control Solenoid Valve 2 Malfunction
  • P1252 Jeep β€” Vacuum Reservoir Solenoid Short Circuit
  • P1252 KIA β€” Pressure Regulator Control Solenoid Valve No. 2 Circuit Malfunction
  • P1252 Mazda β€” Fuel Pressure Control Solenoid Valve 2 Malfunction
  • P1252 Volkswagen β€” Start Of Cold Start Injector Open/Short To Ground
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 Code

1. What are the common symptoms of OBDII code P1252 (Vacuum Reservoir Solenoid Short Circuit)?

- Common symptoms include rough idling, poor engine performance, decreased fuel efficiency, and potential stalling.

2. What causes the OBDII code P1252 to trigger?

- The code is triggered when the Powertrain Control Module (PCM) detects a short circuit in the vacuum reservoir solenoid circuit.

3. How can I diagnose the Vacuum Reservoir Solenoid Short Circuit issue?

- Diagnosis involves inspecting the wiring harness for any damage or fraying, testing the vacuum reservoir solenoid for proper functionality, and checking the associated connectors for a secure connection.

4. Can a faulty vacuum reservoir solenoid cause other issues besides triggering the P1252 code?

- Yes, a faulty vacuum reservoir solenoid can also lead to poor engine performance, vacuum leaks, and potentially affect other emission control systems.

5. What are the repair options for fixing the Vacuum Reservoir Solenoid Short Circuit issue?

- Repair options include repairing or replacing damaged wiring, replacing the faulty vacuum reservoir solenoid, and resetting the OBDII code using a diagnostic tool.

6. Is it safe to continue driving with the P1252 code unresolved?

- It is not recommended to continue driving with the P1252 code unresolved, as it can lead to further engine performance issues and potential damage to other components.

7. Can a DIY enthusiast fix the Vacuum Reservoir Solenoid Short Circuit issue?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the issue. However, it is recommended to consult a professional mechanic for a proper diagnosis and repair.

8. How long does it typically take to repair the Vacuum Reservoir Solenoid Short Circuit problem?

- The repair time can vary depending on the extent of the damage and the accessibility of the components. A professional mechanic can usually complete the repair within a few hours.

9. Are there any preventive measures to avoid triggering the P1252 code in the future?

- Regular maintenance checks, such as inspecting the wiring harness and vacuum reservoir solenoid for signs of wear or damage, can help prevent the recurrence of the P1252 code.

10. Will resetting the OBDII code make the issue go away permanently?

- Resetting the OBDII code may temporarily clear the code, but if the underlying issue causing the Vacuum Reservoir Solenoid Short Circuit is not addressed, the code is likely to reappear.

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