BMW DTC P2802 – Transmission Range Sensor ‘B’ Circuit Low
DTC P2802 meaning on BMW
The Diagnostic Trouble Code (DTC) P2802 for BMW refers to the Transmission Range Sensor ‘B’ Circuit Low. This code indicates that there is a low voltage condition detected in the circuit related to the transmission range sensor ‘B’. The transmission range sensor is responsible for providing the engine control module (ECM) with information about the gear position selected by the driver.
BMW DTC P2802 symptoms
Symptoms of DTC P2802 on a BMW may include:
- Difficulty shifting gears
- Incorrect gear display on the instrument cluster
- Transmission stuck in one gear
- Check Engine Light (CEL) illuminated
BMW DTC P2802 causes
The common causes of DTC P2802 on a BMW include:
- Faulty transmission range sensor ‘B’
- Wiring or connector issues in the transmission range sensor circuit
- Corrosion or poor connections in the sensor circuit
- ECM software or hardware issues
BMW DTC P2802 seriousness
DTC P2802 should be addressed promptly as it can lead to drivability issues and potential transmission problems. Ignoring this code may result in further damage to the transmission system and affect the overall performance of the vehicle.
How to diagnose DTC P2802 on BMW
To diagnose DTC P2802 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the ECM.
- Inspect the wiring and connectors related to the transmission range sensor ‘B’ for any visible damage or corrosion.
- Test the transmission range sensor ‘B’ using a multimeter to check for proper voltage and resistance values.
- Check for any software updates available for the ECM that may address the issue.
How to fix DTC P2802 on BMW
To fix DTC P2802 on a BMW, you can try the following solutions:
- Replace the faulty transmission range sensor ‘B’ with a new one.
- Repair or replace any damaged wiring or connectors in the sensor circuit.
- Clean any corrosion in the sensor circuit and ensure proper connections.
- If needed, update the ECM software to the latest version.
How to erase DTC P2802 on BMW
To erase DTC P2802 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. After addressing the underlying issue causing the code, you can reset the codes to see if the problem has been resolved. It is important to ensure that the root cause of the DTC has been fixed before clearing the codes.
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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