BMW DTC P07B4 – Transmission Park Position Sensor/Switch ‘A’ Circuit High
DTC P07B4 meaning on BMW
The DTC P07B4 code on a BMW indicates an issue with the Transmission Park Position Sensor/Switch ‘A’ Circuit registering a high voltage signal. This sensor/switch is responsible for detecting the position of the transmission gear selector in the park position.
BMW DTC P07B4 symptoms
Symptoms of the BMW DTC P07B4 code may include:
- Difficulty shifting the transmission into or out of park
- Incorrect gear indicator display on the dashboard
- Vehicle may not start due to the park position sensor issue
BMW DTC P07B4 causes
Common causes of the BMW DTC P07B4 code include:
- Faulty transmission park position sensor/switch
- Wiring or connector issues in the circuit
- Corrosion or poor connections in the sensor/switch system
BMW DTC P07B4 seriousness
The DTC P07B4 code should be addressed promptly as it can lead to safety concerns and affect the drivability of the vehicle. Ignoring this issue may result in the vehicle not being able to start or shift gears properly.
How to diagnose DTC P07B4 on BMW
To diagnose the DTC P07B4 code on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer
- Inspect the wiring and connectors related to the transmission park position sensor/switch for any damage or corrosion
- Test the sensor/switch for proper operation using a multimeter
How to fix DTC P07B4 on BMW
To fix the DTC P07B4 code on a BMW, you can try the following solutions:
- Replace the faulty transmission park position sensor/switch
- Repair any damaged wiring or connectors in the circuit
- Clean or replace any corroded connections in the sensor/switch system
How to erase DTC P07B4 on BMW
To erase the DTC P07B4 code on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. Once the issue has been fixed and the codes cleared, the warning light should no longer be illuminated.
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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