BMW DTC P1430 – Diagnostic Module Tank Leakage (DM-TL) Heater Control Circuit Low
DTC P1430 meaning on BMW
The Diagnostic Trouble Code (DTC) P1430 for BMW refers to the Diagnostic Module Tank Leakage (DM-TL) Heater Control Circuit Low. This code indicates that there is a malfunction in the control circuit of the DM-TL heater, which is responsible for managing the tank leakage detection system in the vehicle.
BMW DTC P1430 symptoms
Some common symptoms associated with BMW DTC P1430 may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Decreased fuel efficiency
- Issues with the evaporative emissions system
BMW DTC P1430 causes
The potential causes of BMW DTC P1430 can vary, but some common reasons include:
- Faulty DM-TL heater
- Wiring or connection issues in the heater control circuit
- Defective DM-TL module
BMW DTC P1430 seriousness
While BMW DTC P1430 may not cause immediate drivability issues, it is essential to address this code promptly to prevent potential problems with the vehicle’s emissions system and overall performance.
How to diagnose DTC P1430 on BMW
To diagnose BMW DTC P1430, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the DM-TL heater and its wiring for any visible damage or corrosion
- Test the DM-TL heater control circuit for continuity and proper voltage
How to fix DTC P1430 on BMW
To fix BMW DTC P1430, the following steps may be taken:
- Replace the faulty DM-TL heater if necessary
- Repair any damaged wiring or connections in the heater control circuit
- If the DM-TL module is defective, it may need to be replaced
How to erase DTC P1430 on BMW
To erase DTC P1430 on a BMW, you can use a diagnostic scanner to clear the code after the underlying issue has been addressed and fixed. This will reset the Check Engine Light and remove the DTC from the vehicle’s memory.
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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