BMW DTC P134A – Ionic Current Control Module Control Line Ignition Cylinder 4 Open Circuit
DTC P134A meaning on BMW
DTC P134A on a BMW refers to an error code related to the Ionic Current Control Module Control Line Ignition Cylinder 4 Open Circuit. This code indicates that there is an issue with the control line for the ignition cylinder 4, which can lead to engine performance problems.
BMW DTC P134A symptoms
Symptoms of DTC P134A on a BMW may include rough idling, misfiring, loss of power, and potentially even stalling. The Check Engine Light may also illuminate on the dashboard.
BMW DTC P134A causes
The causes of DTC P134A on a BMW can vary, but common reasons include a faulty ignition coil, damaged wiring or connectors, or issues with the Ionic Current Control Module itself.
BMW DTC P134A seriousness
Ignoring DTC P134A on a BMW can lead to further engine damage and decreased performance. It is important to address this issue promptly to prevent potential long-term problems.
How to diagnose DTC P134A on BMW
To diagnose DTC P134A on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the error code and then perform a visual inspection of the ignition cylinder 4 components, wiring, and connectors. Testing the ignition coil and the Ionic Current Control Module may also be necessary.
How to fix DTC P134A on BMW
Fixing DTC P134A on a BMW may involve replacing the faulty ignition coil, repairing any damaged wiring or connectors, or replacing the Ionic Current Control Module if necessary. It is recommended to follow the manufacturer’s repair procedures and use quality replacement parts.
How to erase DTC P134A on BMW
Once the underlying issue causing DTC P134A on a BMW has been fixed, the error code can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow the vehicle’s onboard computer to monitor the system for any new faults.
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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