BMW DTC P174C – Gear Shift Position 5/3 Circuit Wrong Frequency
DTC P174C meaning on BMW
The DTC P174C for BMW indicates a fault with the Gear Shift Position 5/3 Circuit Wrong Frequency. This means that the control module has detected an incorrect frequency signal from the gear shift position sensor, specifically in the 5th gear or 3rd gear position.
BMW DTC P174C symptoms
Symptoms of the DTC P174C on a BMW may include issues with shifting gears, hesitation or jerking during acceleration, illuminated warning lights on the dashboard such as the transmission or check engine light, and potential limp mode operation where the vehicle may be limited to certain speeds.
BMW DTC P174C causes
The causes of the DTC P174C on a BMW can vary, but common reasons include a faulty gear shift position sensor, damaged wiring or connectors in the circuit, a malfunctioning transmission control module, or issues with the gear shift mechanism itself.
BMW DTC P174C seriousness
The seriousness of the DTC P174C fault code on a BMW depends on the underlying cause. Ignoring this issue can lead to further transmission problems, potential drivability issues, and increased risk of component damage. It is recommended to address this fault promptly to prevent further complications.
How to diagnose DTC P174C on BMW
To diagnose the DTC P174C on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes and perform a thorough inspection of the gear shift position sensor, wiring, connectors, and transmission control module. Testing the sensor’s output frequency and checking for any visible damage or corrosion in the circuit are essential steps in diagnosing this issue.
How to fix DTC P174C on BMW
Fixing the DTC P174C on a BMW may involve replacing the faulty gear shift position sensor, repairing damaged wiring or connectors, resetting the transmission control module, or addressing any underlying issues with the gear shift mechanism. It is recommended to follow the manufacturer’s diagnostic and repair procedures to ensure a proper fix for this fault code.
How to erase DTC P174C on BMW
To erase the DTC P174C on a BMW, a mechanic can use a diagnostic scanner to clear the fault codes stored in the vehicle’s system. After addressing the underlying cause of the fault code and making necessary repairs, the diagnostic tool can be used to reset the codes and clear the warning lights on the dashboard.
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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