BMW DTC P1384 – Knock Sensor 3 Circuit
DTC P1384 meaning on BMW
The DTC P1384 for BMW indicates a fault in the Knock Sensor 3 Circuit. The knock sensor is responsible for detecting abnormal combustion in the engine, which can cause knocking or pinging. When the ECM (Engine Control Module) detects an issue with the Knock Sensor 3 Circuit, it triggers the P1384 fault code.
BMW DTC P1384 symptoms
Symptoms of the DTC P1384 on a BMW may include engine knocking or pinging noises, reduced engine performance, hesitation during acceleration, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P1384 causes
The common causes of the DTC P1384 in a BMW include a faulty knock sensor, damaged wiring or connectors in the knock sensor circuit, or issues with the ECM itself.
BMW DTC P1384 seriousness
Ignoring the DTC P1384 in a BMW can lead to decreased engine performance, potential engine damage, and increased fuel consumption. It is important to address this issue promptly to prevent further complications.
How to diagnose DTC P1384 on BMW
To diagnose the DTC P1384 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then inspect the knock sensor and its wiring for any visible damage or corrosion. Testing the sensor’s resistance and checking the signal output can help pinpoint the issue.
How to fix DTC P1384 on BMW
Fixing the DTC P1384 on a BMW usually involves replacing the faulty knock sensor or repairing any damaged wiring or connectors in the circuit. It is important to use OEM (Original Equipment Manufacturer) parts to ensure proper functionality. Once the repair is completed, the fault codes can be cleared from the ECM.
How to erase DTC P1384 on BMW
To erase the DTC P1384 on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the ECM. After the repair has been made and the issue resolved, the codes can be reset to turn off the Check Engine Light and ensure that the system is functioning properly.
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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