P2258 – BMW DTC

BMW DTC P2258 – AIR System Control ‘A’ Circuit High

DTC P2258 meaning on BMW

The Diagnostic Trouble Code (DTC) P2258 for BMW refers to the AIR System Control ‘A’ Circuit High. This code indicates that there is a high voltage condition detected in the control circuit of the secondary air injection system.

BMW DTC P2258 symptoms

Symptoms of DTC P2258 on a BMW may include:

• Check Engine Light illuminated on the dashboard
• Reduced engine performance
• Increased fuel consumption
• Engine may run rough or stall

BMW DTC P2258 causes

Common causes of DTC P2258 on a BMW include:

• Faulty AIR system control solenoid
• Short circuit or open circuit in the wiring of the AIR system
• Defective AIR system control module
• Issues with the AIR pump or related components

BMW DTC P2258 seriousness

While DTC P2258 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential damage to the vehicle’s emissions system and ensure optimal engine performance.

How to diagnose DTC P2258 on BMW

To diagnose DTC P2258 on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the wiring and connectors of the AIR system for any visible damage or corrosion
3. Test the AIR system control solenoid and related components for proper operation
4. Check the AIR pump and associated hoses for any blockages or malfunctions

How to fix DTC P2258 on BMW

To fix DTC P2258 on a BMW, the following steps may be taken:

1. Replace any faulty components identified during the diagnostic process, such as the AIR system control solenoid or module
2. Repair any damaged wiring or connectors in the AIR system circuit
3. Clean or replace the AIR pump if necessary
4. Clear the fault code and reset the Check Engine Light using a diagnostic scanner

How to erase DTC P2258 on BMW

To erase DTC P2258 on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port
2. Access the scanner’s menu to clear the fault codes stored in the vehicle’s ECU
3. Follow the on-screen prompts to erase the DTC P2258 code
4. Once the code is cleared, start the vehicle and ensure the Check Engine Light does not reappear

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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