BMW DTC P135A – Ionic Current Control Module Control Line Ignition Cylinder 10 Open Circuit
DTC P135A meaning on BMW
DTC P135A indicates an issue with the Ionic Current Control Module Control Line Ignition Cylinder 10 Open Circuit in a BMW. This fault code specifically points to a problem with the control line for the ignition coil in cylinder 10.
BMW DTC P135A symptoms
Common symptoms associated with DTC P135A on a BMW may include rough idling, misfiring, loss of power, and in some cases, the vehicle may go into a limp mode where performance is severely limited.
BMW DTC P135A causes
The causes of DTC P135A in a BMW can vary, but common reasons include a faulty ignition coil, damaged wiring or connectors in the control circuit, or issues with the Ionic Current Control Module itself.
BMW DTC P135A seriousness
While DTC P135A may not always result in immediate drivability issues, it is important to address this fault code promptly to prevent potential engine damage or further complications.
How to diagnose DTC P135A on BMW
To diagnose DTC P135A on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a thorough inspection of the ignition coil, wiring, and control module to identify the root cause of the open circuit.
How to fix DTC P135A on BMW
Fixing DTC P135A on a BMW may involve replacing a faulty ignition coil, repairing damaged wiring or connectors, or replacing the Ionic Current Control Module if necessary. It is recommended to follow manufacturer guidelines and use OEM parts for the repair.
How to erase DTC P135A on BMW
Once the underlying issue causing DTC P135A has been resolved, the fault code can be cleared using a diagnostic scanner. This will reset the vehicle’s ECU and turn off the check engine light associated with the fault code.
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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