BMW DTC P134C – Ionic Current Control Module Control Line Ignition Cylinder 6 Open Circuit
DTC P134C meaning on BMW
DTC P134C on a BMW refers to an issue with the Ionic Current Control Module Control Line for Ignition Cylinder 6. This fault code indicates an open circuit in the control line for the ignition coil of cylinder 6.
BMW DTC P134C symptoms
Symptoms of DTC P134C on a BMW may include rough idling, misfiring, loss of power, and potentially an illuminated check engine light on the dashboard.
BMW DTC P134C causes
The most common causes of DTC P134C on a BMW are a faulty ignition coil, damaged wiring or connectors in the control circuit, or a malfunctioning Ionic Current Control Module.
BMW DTC P134C seriousness
Ignoring DTC P134C on a BMW can lead to poor engine performance, reduced fuel efficiency, and potential damage to the catalytic converter over time. It is recommended to address this issue promptly.
How to diagnose DTC P134C on BMW
To diagnose DTC P134C on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the ignition coil, wiring, and connectors associated with cylinder 6. They may also conduct electrical tests to pinpoint the exact cause of the open circuit.
How to fix DTC P134C on BMW
Fixing DTC P134C on a BMW usually involves replacing the faulty ignition coil, repairing any damaged wiring or connectors, or replacing the Ionic Current Control Module if necessary. Once the root cause of the open circuit is addressed, the fault code should be cleared, and the vehicle should be tested to ensure the issue is resolved.
How to erase DTC P134C on BMW
To erase DTC P134C on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s computer system. After the repair has been completed and the issue resolved, the fault code should be cleared to turn off the check engine light and ensure 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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