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P1642 – BMW DTC

BMW DTC P1642 – Throttle Valve Adaptation Stop due to Environmental Values

DTC P1642 meaning on BMW

The Diagnostic Trouble Code (DTC) P1642 for BMW indicates a Throttle Valve Adaptation Stop due to Environmental Values. This means that the vehicle’s Engine Control Module (ECM) has detected an issue with the adaptation of the throttle valve based on environmental factors.

BMW DTC P1642 symptoms

Symptoms of DTC P1642 on a BMW may include:

  • Reduced engine power
  • Engine stalling
  • Difficulty accelerating
  • Check Engine Light illuminated

BMW DTC P1642 causes

Common causes of DTC P1642 on a BMW include:

  • Throttle valve malfunction
  • Environmental factors affecting throttle adaptation
  • Faulty throttle position sensor
  • Wiring or connection issues

BMW DTC P1642 seriousness

DTC P1642 should be addressed promptly as it can lead to drivability issues and potential safety concerns. Ignoring this code may result in further damage to engine components.

How to diagnose DTC P1642 on BMW

To diagnose DTC P1642 on a BMW, a mechanic would typically perform the following steps:

  1. Use a diagnostic scanner to retrieve the fault codes
  2. Inspect the throttle valve and related components for any visible damage
  3. Check the throttle position sensor for proper operation
  4. Test the wiring and connections for continuity and proper voltage

How to fix DTC P1642 on BMW

To fix DTC P1642 on a BMW, the following steps may be taken:

  1. Clean or replace the throttle valve if necessary
  2. Reset the throttle adaptation values using a diagnostic tool
  3. Replace the throttle position sensor if faulty
  4. Repair any wiring or connection issues

How to erase DTC P1642 on BMW

To erase DTC P1642 on a BMW, follow these steps:

  1. Use a diagnostic scanner to clear the fault codes
  2. Perform a test drive to ensure the code 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

← All BMW Diagnostic Trouble Codes

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