BMW DTC P2302 – Ignition Coil ‘A’ Secondary Circuit
DTC P2302 meaning on BMW
The DTC P2302 error code on a BMW indicates a problem with the ignition coil ‘A’ secondary circuit. This means that there is an issue with the electrical circuit that controls the ignition coil for cylinder ‘A’ in the engine.
BMW DTC P2302 symptoms
Symptoms of the BMW DTC P2302 code may include engine misfires, rough idling, loss of power, and potentially even stalling. The Check Engine Light may also illuminate on the dashboard.
BMW DTC P2302 causes
The most common causes of the BMW DTC P2302 code are a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the engine control module (ECM).
BMW DTC P2302 seriousness
Ignoring the DTC P2302 code on a BMW can lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components. It is important to address this issue promptly to prevent further problems.
How to diagnose DTC P2302 on BMW
To diagnose the DTC P2302 code on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the specific fault codes stored in the ECM. They would then inspect the ignition coil ‘A’ circuit, check for any visible damage or loose connections, and perform electrical tests to pinpoint the exact cause of the issue.
How to fix DTC P2302 on BMW
Fixing the DTC P2302 code on a BMW usually involves replacing the faulty ignition coil, repairing any damaged wiring or connectors, or addressing any issues with the ECM. Once the root cause of the problem is identified and resolved, the code can be cleared from the ECM.
How to erase DTC P2302 on BMW
To erase the DTC P2302 code on a BMW, a mechanic can use a diagnostic scanner to clear the code from the ECM’s memory. Once the underlying issue has been fixed and the code erased, the Check Engine Light should turn off, indicating that the problem has been resolved.
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.