BMW DTC P317A – Cylinder 2 H2-Injector Low Side Circuit/Open
DTC P317A meaning on BMW
The DTC P317A for BMW indicates an issue with the Cylinder 2 H2-Injector Low Side Circuit/Open. This means that there is a problem with the fuel injector circuit for cylinder 2, specifically on the low side.
BMW DTC P317A symptoms
Symptoms of the BMW DTC P317A may include rough idling, misfires, decreased engine performance, and potentially an illuminated check engine light on the dashboard.
BMW DTC P317A causes
The causes of the BMW DTC P317A can vary, but common reasons include a faulty fuel injector, wiring issues in the injector circuit, or a problem with the engine control module (ECM).
BMW DTC P317A seriousness
Ignoring the DTC P317A on a BMW can lead to poor engine performance, reduced fuel efficiency, and potential damage to the engine over time. It is important to address this issue promptly.
How to diagnose DTC P317A on BMW
To diagnose the DTC P317A on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes and then perform a visual inspection of the fuel injector and its wiring. They may also conduct tests to check the injector’s resistance and functionality.
How to fix DTC P317A on BMW
Fixing the DTC P317A on a BMW may involve replacing the faulty fuel injector, repairing any damaged wiring in the circuit, or addressing issues with the engine control module. It is recommended to follow the manufacturer’s repair procedures for a proper fix.
How to erase DTC P317A on BMW
Once the underlying issue causing the DTC P317A on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will erase the code from the ECM’s memory and turn off the check engine light.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.