BMW DTC P2803 – Transmission Range Sensor ‘B’ Circuit High
DTC P2803 meaning on BMW
The DTC P2803 code on a BMW indicates an issue with the Transmission Range Sensor ‘B’ Circuit High. This means that the signal voltage from the transmission range sensor ‘B’ is higher than the specified range, causing the control module to detect a fault.
BMW DTC P2803 symptoms
Some common symptoms associated with the BMW DTC P2803 code may include:
- Erratic shifting behavior
- Transmission stuck in a single gear
- Difficulty shifting gears
- Check Engine Light illuminated
BMW DTC P2803 causes
The potential causes of the BMW DTC P2803 code can include:
- Faulty transmission range sensor ‘B’
- Wiring or connector issues in the transmission range sensor circuit
- Internal control module fault
BMW DTC P2803 seriousness
While the BMW DTC P2803 code may not always result in immediate drivability issues, it is important to address the problem promptly to prevent potential transmission damage or unsafe driving conditions.
How to diagnose DTC P2803 on BMW
Diagnosing the DTC P2803 code on a BMW typically involves the following steps:
- Use a diagnostic scanner to retrieve the fault codes and freeze frame data
- Inspect the transmission range sensor ‘B’ and its wiring for any visible damage
- Perform a voltage test on the transmission range sensor circuit
- Check for any related technical service bulletins from BMW
How to fix DTC P2803 on BMW
To resolve the BMW DTC P2803 code, you may need to:
- Replace the faulty transmission range sensor ‘B’
- Repair any damaged wiring or connectors in the circuit
- Clear the fault codes and perform a test drive to verify the repair
How to erase DTC P2803 on BMW
To erase the DTC P2803 code on a BMW, you can use a diagnostic scanner to clear the fault codes from the vehicle’s memory. After clearing the codes, it is recommended to perform a test drive to ensure that the issue has been successfully resolved.
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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