BMW DTC P174E – Gear Shift Position 5/3 Circuit Duty Cycle Too Low
DTC P174E meaning on BMW
DTC P174E on a BMW indicates that the Gear Shift Position 5/3 Circuit Duty Cycle is too low. This means that the control module has detected a lower than expected duty cycle in the gear shift position sensor circuit for gears 5 and 3.
BMW DTC P174E symptoms
Symptoms of DTC P174E on a BMW may include erratic shifting behavior, difficulty engaging gears, transmission slipping, and in some cases, the transmission may go into limp mode.
BMW DTC P174E causes
The common causes of DTC P174E on a BMW include a faulty gear shift position sensor, damaged wiring or connectors in the gear shift position circuit, or a malfunctioning transmission control module.
BMW DTC P174E seriousness
DTC P174E should be addressed promptly as it can lead to drivability issues and potential transmission damage if left unresolved. Ignoring this fault code may result in further transmission problems and increased repair costs.
How to diagnose DTC P174E on BMW
To diagnose DTC P174E on a BMW, a mechanic would typically start by using a diagnostic scan tool to retrieve the fault codes from the transmission control module. They would then inspect the gear shift position sensor, wiring, and connectors for any visible damage or corrosion. Testing the sensor’s resistance and checking for proper voltage signals would help pinpoint the issue.
How to fix DTC P174E on BMW
Fixing DTC P174E on a BMW may involve replacing the faulty gear shift position sensor, repairing or replacing damaged wiring or connectors, or reprogramming the transmission control module if necessary. It is essential to follow the manufacturer’s diagnostic and repair procedures to ensure a proper fix.
How to erase DTC P174E on BMW
After the underlying issue causing DTC P174E on a BMW has been resolved, the fault code can be cleared using a diagnostic scan tool. This will reset the transmission control module and turn off the Check Engine Light. It is important to verify that the repair was successful by performing a test drive and ensuring that the fault code does not return.
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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