AutoCodes – BMW – P053A BMW

P053A BMW Code - Positive Crankcase Ventilation Heater Control Circuit / Open

Quick Answer

The Engine Control Module (ECM) monitors the Positive Crankcase Ventilation Heater Control Circuit. Common causes include Faulty Positive Crankcase Ventilation (PCV) heater assembly, Positive Crankcase Ventilation (PCV) heater assembly harness is open or shorted, Positive Crankcase Ventilation (PCV) heater assembly 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: P053A BMW indicates Positive Crankcase Ventilation Heater Control Circuit / Open.
Common causes: Common causes include Faulty Positive Crankcase Ventilation (PCV) heater assembly, Positive Crankcase Ventilation (PCV) heater assembly harness is open or shorted, Positive Crankcase Ventilation (PCV) heater assembly 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 6,484

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 Apr 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P053A BMW Description

The Engine Control Module (ECM) monitors the Positive Crankcase Ventilation Heater Control Circuit. The P053A codes set when the Powertrain Control Module (PCM) detects that the actual Positive Crankcase Ventilation Heater Control (PCVHC) circuit voltage is less than the desired voltage.

OBDII Code P053A BMW - Positive Crankcase Ventilation Heater Control Circuit / Open - AutoCodes.com — P053A BMW Code - Positive Crankcase Ventilation Heater Control Circuit / Open

What does this mean?

What are the Possible Causes of the DTC P053A BMW?

Faulty Positive Crankcase Ventilation (PCV) heater assembly
Positive Crankcase Ventilation (PCV) heater assembly harness is open or shorted
Positive Crankcase Ventilation (PCV) heater assembly circuit poor electrical connection

How to Fix the DTC P053A 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 P053A 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 P053A 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 P053A BMW Code

1. What are the common symptoms of OBDII code P053A in a BMW related to the Positive Crankcase Ventilation Heater Control Circuit / Open?

- Common symptoms include rough idling, decreased engine performance, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P053A in a BMW?

- Possible causes include a faulty positive crankcase ventilation (PCV) heater, damaged wiring or connectors in the heater circuit, or a malfunctioning PCM (powertrain control module).

3. How can I diagnose the issue related to OBDII code P053A in my BMW?

- A thorough inspection of the PCV heater, wiring, and connectors is recommended. Using a multimeter to check for continuity and resistance in the circuit can help pinpoint the problem.

4. Can I continue driving my BMW with OBDII code P053A present?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the engine or emissions system.

5. What are the repair options for fixing OBDII code P053A in a BMW?

- Repair options include replacing the faulty PCV heater, repairing any damaged wiring or connectors, and resetting the fault code using a scan tool.

6. Are there any preventive measures to avoid OBDII code P053A in a BMW?

- Regular maintenance of the PCV system, including checking for clogs or leaks, can help prevent issues that may trigger this fault code.

7. How much does it typically cost to repair OBDII code P053A in a BMW?

- The cost of repair can vary depending on the specific issue, but it may range from $200 to $500, including parts and labor.

8. Can I reset the OBDII code P053A in my BMW without repairing the issue?

- While you can reset the fault code using a scan tool, it is important to address the underlying problem to prevent further issues.

9. Is OBDII code P053A a common issue in BMW vehicles?

- While not extremely common, this fault code can occur in BMW vehicles with PCV heater systems, particularly in colder climates.

10. How long does it take to repair OBDII code P053A in a BMW?

- The repair time can vary based on the complexity of the issue, but it typically takes 1-2 hours for a trained technician to diagnose and fix the problem.