P319B – BMW DTC

BMW DTC P319B – Throttle Actuator Output Stage Over Temperature

DTC P319B meaning on BMW

DTC P319B indicates a fault with the Throttle Actuator Output Stage Over Temperature in a BMW vehicle. This fault code is triggered when the Engine Control Module (ECM) detects that the temperature of the throttle actuator has exceeded the specified limit.

BMW DTC P319B symptoms

Symptoms of DTC P319B in a BMW may include:

  • Reduced engine power
  • Engine stalling
  • Check Engine Light (CEL) illuminated
  • Throttle response issues

BMW DTC P319B causes

Common causes of DTC P319B in a BMW include:

  • Throttle actuator failure
  • Wiring or connector issues
  • Overheating of the throttle actuator

BMW DTC P319B seriousness

DTC P319B is a serious fault code as it can lead to drivability issues and potential safety concerns. It is recommended to address this issue promptly to avoid further damage to the vehicle.

How to diagnose DTC P319B on BMW

To diagnose DTC P319B on a BMW, a mechanic may perform the following steps:

  1. Use a diagnostic scanner to retrieve the fault code
  2. Inspect the throttle actuator for signs of overheating or damage
  3. Check the wiring and connectors for any issues
  4. Test the throttle actuator for proper functionality

How to fix DTC P319B on BMW

To fix DTC P319B on a BMW, the following steps may be taken:

  1. Replace the faulty throttle actuator
  2. Repair any damaged wiring or connectors
  3. Clean or replace the throttle body if necessary
  4. Clear the fault code and perform a test drive to ensure the issue is resolved

How to erase DTC P319B on BMW

To erase DTC P319B on a BMW, follow these steps:

  1. Use a diagnostic scanner to clear the fault code
  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

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