BMW DTC P317F – Cylinder 3 H2-Injector Low Side Circuit High
DTC P317F meaning on BMW
DTC P317F is a fault code that indicates an issue with the Cylinder 3 H2-Injector Low Side Circuit High in a BMW vehicle. This fault code specifically points to a problem with the fuel injector circuit for cylinder 3, where the low side of the circuit is reading a high voltage.
BMW DTC P317F symptoms
Symptoms of DTC P317F in a BMW may include rough idling, misfires, loss of power, poor fuel efficiency, and potentially an illuminated check engine light on the dashboard.
BMW DTC P317F causes
The causes of DTC P317F on a BMW can vary, but common reasons include a faulty fuel injector for cylinder 3, wiring issues in the injector circuit, a poor electrical connection, or a problem with the Engine Control Module (ECM).
BMW DTC P317F seriousness
While DTC P317F may not always result in immediate drivability issues, it is important to address this fault code promptly to prevent potential engine damage and ensure optimal performance of the vehicle.
How to diagnose DTC P317F on BMW
To diagnose DTC P317F on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform further testing on the fuel injector for cylinder 3, inspect the wiring and connections in the injector circuit, and check the ECM for any faults or programming issues.
How to fix DTC P317F on BMW
Fixing DTC P317F on a BMW may involve replacing the fuel injector for cylinder 3 if it is found to be faulty, repairing any damaged wiring or connections in the injector circuit, ensuring proper electrical continuity, and addressing any ECM issues that may be contributing to the fault code.
How to erase DTC P317F on BMW
Once the underlying issue causing DTC P317F has been resolved, the fault code can be cleared using a diagnostic scanner that has the capability to reset fault codes. This will turn off the check engine light and ensure that the vehicle’s ECM no longer registers the fault code.
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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