BMW DTC P2138 – Throttle/Pedal Position Sensor/Switch ‘D’ / ‘E’ Voltage Correlation
DTC P2138 meaning on BMW
The Diagnostic Trouble Code (DTC) P2138 for BMW indicates a voltage correlation issue between the throttle position sensor and the pedal position sensor. This means that the signals from these sensors do not align as expected, potentially causing drivability issues.
BMW DTC P2138 symptoms
Symptoms of DTC P2138 on a BMW may include:
- Reduced engine power
- Unresponsive throttle
- Engine stalling
- Check Engine Light (CEL) illuminated
BMW DTC P2138 causes
Common causes of DTC P2138 on a BMW include:
- Faulty throttle position sensor
- Malfunctioning pedal position sensor
- Wiring or connector issues
- Electronic control module (ECM) problems
BMW DTC P2138 seriousness
DTC P2138 should be taken seriously as it can lead to unsafe driving conditions and potential engine damage if left unresolved. It is recommended to address this issue promptly to ensure the vehicle’s proper operation.
How to diagnose DTC P2138 on BMW
To diagnose DTC P2138 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the throttle position sensor and pedal position sensor for any visible damage
- Check the wiring and connectors for any signs of wear or corrosion
- Test the sensors using a multimeter to verify their functionality
How to fix DTC P2138 on BMW
To fix DTC P2138 on a BMW, you can try the following solutions:
- Replace the faulty throttle position sensor or pedal position sensor
- Repair any damaged wiring or connectors
- Reset the Electronic Control Module (ECM) to clear the fault code
- Perform a throttle relearn procedure to recalibrate the sensors
How to erase DTC P2138 on BMW
To erase DTC P2138 on a BMW, you can use a diagnostic scanner to clear the fault code from the vehicle’s memory. Once the issue has been addressed and fixed, you can reset the code to ensure that the Check Engine Light is turned off.