BMW DTC P174D – Gear Shift Position 5/3 Circuit Duty Cycle Too High
DTC P174D meaning on BMW
The DTC P174D on a BMW indicates that the Gear Shift Position 5/3 Circuit Duty Cycle is too high. This fault code is specific to the transmission control module and relates to the duty cycle of the gear shift position sensor in the transmission.
BMW DTC P174D symptoms
Symptoms of the DTC P174D on a BMW may include erratic shifting behavior, harsh shifting between gears, transmission slipping, and in some cases, the transmission may go into limp mode. The Check Engine Light may also be illuminated on the dashboard.
BMW DTC P174D causes
The most common causes of the DTC P174D on a BMW include a faulty gear shift position sensor, damaged wiring or connectors in the circuit, or issues with the transmission control module itself. It is important to perform a thorough diagnosis to pinpoint the exact cause.
BMW DTC P174D seriousness
The DTC P174D should be addressed promptly as it can lead to drivability issues and potential damage to the transmission if left unresolved. Ignoring this fault code may result in further transmission problems and increased repair costs.
How to diagnose DTC P174D on BMW
To diagnose the DTC P174D on a BMW, a scan tool capable of reading transmission fault codes is required. The technician should inspect the gear shift position sensor, check the wiring and connectors for any damage, and perform a thorough inspection of the transmission control module.
How to fix DTC P174D on BMW
Fixing the DTC P174D on a BMW may involve replacing the gear shift position sensor, repairing any damaged wiring or connectors, or reprogramming the transmission control module. It is recommended to follow the manufacturer’s diagnostic and repair procedures to ensure a proper fix.
How to erase DTC P174D on BMW
Once the underlying issue causing the DTC P174D on a BMW has been resolved, the fault code can be cleared using a scan tool. By clearing the code, the Check Engine Light will turn off, indicating that the fault has been addressed. It is important to verify that the issue does not reoccur after clearing the 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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