P2158 – BMW DTC

BMW DTC P2158 – Vehicle Speed Sensor ‘B’ Circuit

DTC P2158 meaning on BMW

The DTC P2158 code on a BMW indicates a problem with the Vehicle Speed Sensor ‘B’ circuit. This sensor is responsible for monitoring the speed of the vehicle and providing data to the engine control module.

BMW DTC P2158 symptoms

Symptoms of a DTC P2158 on a BMW may include:

• Check Engine Light illuminated
• Inaccurate speedometer readings
• Problems with cruise control functionality

BMW DTC P2158 causes

Common causes of a DTC P2158 on a BMW include:

• Faulty Vehicle Speed Sensor ‘B’
• Wiring or connector issues in the sensor circuit
• Corrosion or damage to sensor components

BMW DTC P2158 seriousness

While a DTC P2158 may not cause immediate drivability issues, it is important to address this code promptly. Ignoring the problem can lead to inaccurate speed readings and potential issues with other vehicle systems that rely on speed data.

How to diagnose DTC P2158 on BMW

To diagnose a DTC P2158 on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code
2. Inspect the Vehicle Speed Sensor ‘B’ and its wiring for damage or corrosion
3. Test the sensor’s output signal using a multimeter
4. Check for any related codes or issues in the vehicle’s system

How to fix DTC P2158 on BMW

To fix a DTC P2158 on a BMW, the following steps may be taken:

1. Replace the faulty Vehicle Speed Sensor ‘B’
2. Repair any damaged wiring or connectors in the sensor circuit
3. Clean or replace any corroded sensor components
4. Clear the fault code and test drive the vehicle to ensure the issue is resolved

How to erase DTC P2158 on BMW

To erase a DTC P2158 on a BMW, follow these steps:

1. Use a diagnostic scanner to clear the fault code
2. Disconnect the vehicle’s battery for a few minutes to reset the system
3. After performing the necessary repairs, clear the code again to ensure it does not return

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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