BMW DTC P17DC – Multiple Sensor Failure, Output Shaft Speed Sensor and Turbine Shaft Speed Sensor
DTC P17DC meaning on BMW
DTC P17DC on a BMW refers to a fault code indicating Multiple Sensor Failure, specifically related to the Output Shaft Speed Sensor and Turbine Shaft Speed Sensor. This code is triggered when the Engine Control Module (ECM) detects discrepancies or malfunctions in the signals received from these sensors.
BMW DTC P17DC symptoms
Symptoms of DTC P17DC in a BMW may include erratic shifting behavior, transmission slipping, harsh shifting, or the transmission going into limp mode. The vehicle may also display a warning light on the dashboard indicating a transmission fault.
BMW DTC P17DC causes
The causes of DTC P17DC in a BMW can vary, but common reasons include sensor malfunctions, wiring issues, sensor alignment problems, or internal transmission faults. Contaminated transmission fluid or a faulty transmission control module can also contribute to this fault code.
BMW DTC P17DC seriousness
DTC P17DC should be taken seriously as it directly affects the transmission system of the vehicle. Ignoring this fault code can lead to further damage to the transmission components and potentially result in costly repairs if left unresolved.
How to diagnose DTC P17DC on BMW
To diagnose DTC P17DC on a BMW, a diagnostic scan tool capable of reading transmission fault codes is required. The technician will need to inspect the Output Shaft Speed Sensor and Turbine Shaft Speed Sensor for proper operation, check the wiring harness for any damage or loose connections, and perform a thorough transmission fluid analysis.
How to fix DTC P17DC on BMW
Fixing DTC P17DC on a BMW may involve replacing the faulty Output Shaft Speed Sensor or Turbine Shaft Speed Sensor, repairing any damaged wiring, or addressing internal transmission issues. It is recommended to follow the manufacturer’s repair procedures and use genuine BMW parts for a reliable repair.
How to erase DTC P17DC on BMW
To erase DTC P17DC on a BMW, the fault code can be cleared using a diagnostic scan tool with the capability to reset transmission fault codes. After the repair has been completed, the technician can clear the code, and the vehicle should be test-driven to ensure the fault does not reoccur.
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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