BMW DTC P316D – Cylinder 1 H2-Injector Low Side Circuit/Open
DTC P316D meaning on BMW
The DTC P316D for BMW indicates an issue with the Cylinder 1 H2-Injector Low Side Circuit/Open. This means that there is a problem with the fuel injector circuit for cylinder 1, specifically on the low side.
BMW DTC P316D symptoms
Symptoms of the BMW DTC P316D may include rough idling, misfires, decreased engine performance, reduced fuel efficiency, and potentially an illuminated check engine light on the dashboard.
BMW DTC P316D causes
The causes of the BMW DTC P316D can vary, but common reasons include a faulty fuel injector, wiring issues in the injector circuit, poor electrical connections, or a problem with the Engine Control Module (ECM).
BMW DTC P316D seriousness
While the BMW DTC P316D may not cause immediate harm to the vehicle, it can lead to poor engine performance, reduced fuel efficiency, and potential long-term damage if left unresolved. It is recommended to address this issue promptly.
How to diagnose DTC P316D on BMW
To diagnose the DTC P316D on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes and perform a thorough inspection of the fuel injector for cylinder 1, check the wiring and connections in the injector circuit, and test the ECM for any faults.
How to fix DTC P316D on BMW
Fixing the BMW DTC P316D may involve replacing the faulty fuel injector, repairing any damaged wiring or connections in the injector circuit, ensuring proper electrical continuity, and addressing any ECM issues if necessary. It is recommended to follow manufacturer guidelines and use quality replacement parts.
How to erase DTC P316D on BMW
Once the underlying issue causing the DTC P316D on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will erase the DTC P316D code from the vehicle’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
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