BMW DTC P13E1 – Ignition and Injectors Relay Power Supply Circuit Injection Circuit High (Bank 2)
DTC P13E1 meaning on BMW
DTC P13E1 on a BMW refers to the Ignition and Injectors Relay Power Supply Circuit Injection Circuit High fault detected in Bank 2. This fault code indicates that there is a high voltage condition in the power supply circuit for the ignition and injectors in Bank 2 of the engine.
BMW DTC P13E1 symptoms
Symptoms of DTC P13E1 on a BMW may include engine misfires, rough idling, loss of power, poor fuel efficiency, and in some cases, the Check Engine Light may be illuminated on the dashboard.
BMW DTC P13E1 causes
The common causes of DTC P13E1 on a BMW include a faulty ignition or injector relay, wiring issues in the power supply circuit, a malfunctioning injector, or a problem with the Engine Control Module (ECM).
BMW DTC P13E1 seriousness
Ignoring DTC P13E1 on a BMW can lead to poor engine performance, potential damage to the catalytic converter, and increased emissions. It is important to address this fault code promptly to prevent further issues.
How to diagnose DTC P13E1 on BMW
To diagnose DTC P13E1 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and perform a thorough inspection of the ignition and injector relay, wiring, and related components in Bank 2. Testing the voltage levels in the circuit and checking for any visible signs of damage or corrosion can help pinpoint the exact cause of the fault.
How to fix DTC P13E1 on BMW
Fixing DTC P13E1 on a BMW may involve replacing a faulty ignition or injector relay, repairing any damaged wiring, addressing issues with the injector, or reprogramming the Engine Control Module (ECM) if necessary. It is recommended to follow the manufacturer’s diagnostic and repair procedures to ensure a proper fix.
How to erase DTC P13E1 on BMW
Once the underlying issue causing DTC P13E1 on a BMW has been resolved, the fault code can be cleared using a diagnostic scanner. By clearing the code, the Check Engine Light should turn off, indicating that the fault has been addressed. It is important to verify that the issue has been fixed before clearing 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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