BMW DTC P0352 – Ignition Coil ‘B’ Primary Control Circuit/Open
DTC P0352 meaning on BMW
DTC P0352 for BMW indicates a malfunction in the ignition coil ‘B’ primary control circuit, specifically an open circuit. This fault code is triggered when the Engine Control Module (ECM) detects that the primary circuit of the ignition coil ‘B’ is not functioning properly.
BMW DTC P0352 symptoms
Symptoms of DTC P0352 on a BMW may include engine misfires, rough idling, loss of power, and in some cases, the Check Engine Light may illuminate on the dashboard. The vehicle may also experience poor fuel efficiency and overall performance issues.
BMW DTC P0352 causes
The common causes of DTC P0352 on a BMW include a faulty ignition coil ‘B’, damaged wiring or connectors in the ignition coil circuit, or a problem with the Engine Control Module (ECM). Additionally, corrosion or poor connections can also lead to this fault code.
BMW DTC P0352 seriousness
Ignoring DTC P0352 on a BMW can lead to further damage to the ignition system and potentially cause more severe engine problems. It is important to address this issue promptly to prevent any long-term damage to the vehicle.
How to diagnose DTC P0352 on BMW
To diagnose DTC P0352 on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then inspect the ignition coil ‘B’, wiring, and connectors for any visible damage or corrosion. Testing the continuity of the circuit and checking for proper voltage supply are also essential steps in diagnosing this issue.
How to fix DTC P0352 on BMW
Fixing DTC P0352 on a BMW usually involves replacing the faulty ignition coil ‘B’ and repairing any damaged wiring or connectors in the circuit. It is crucial to use high-quality replacement parts to ensure proper functionality. After the repairs are completed, the vehicle should be tested to verify that the issue has been resolved.
How to erase DTC P0352 on BMW
To erase DTC P0352 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 scanner can be used to reset the Check Engine Light and erase the fault code from the system.
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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