BMW DTC P1700 – Double Error Output Speed and Input/Turbine Speed
DTC P1700 meaning on BMW
DTC P1700 on a BMW indicates a Double Error Output Speed and Input/Turbine Speed malfunction. This fault code is related to the transmission system of the vehicle and specifically points to issues with the speed sensors and their respective signals.
BMW DTC P1700 symptoms
Symptoms of DTC P1700 on a BMW may include erratic shifting behavior, harsh shifting, transmission slipping, delayed engagement when shifting gears, and in some cases, the transmission may go into a fail-safe or limp mode. The vehicle’s check engine light may also be illuminated.
BMW DTC P1700 causes
The common causes of DTC P1700 on a BMW include faulty input speed sensor, output speed sensor, wiring issues, damaged connectors, or a malfunctioning transmission control module (TCM). Additionally, low transmission fluid levels or contaminated fluid can also trigger this fault code.
BMW DTC P1700 seriousness
DTC P1700 should be taken seriously as it directly affects the transmission’s performance and can lead to further damage if left unresolved. Driving with this fault code present can cause additional stress on the transmission components and may result in costly repairs if not addressed promptly.
How to diagnose DTC P1700 on BMW
To diagnose DTC P1700 on a BMW, a professional diagnostic scanner capable of reading transmission fault codes is required. The technician will perform a scan to retrieve the specific error code and then proceed to inspect the input and output speed sensors, wiring connections, and the TCM for any visible signs of damage or corrosion. Testing the sensors for proper resistance and signal output will help pinpoint the root cause of the issue.
How to fix DTC P1700 on BMW
Fixing DTC P1700 on a BMW typically involves replacing the faulty input or output speed sensor, repairing any damaged wiring or connectors, or addressing issues with the TCM. It is essential to use genuine BMW parts to ensure proper functionality and compatibility. Once the faulty component is replaced, the system should be cleared of any stored fault codes and retested to confirm the repair.
How to erase DTC P1700 on BMW
To erase DTC P1700 on a BMW, the fault code can be cleared using a diagnostic scanner with the capability to reset transmission codes. After the repair has been completed and the root cause of the issue addressed, the technician can access the vehicle’s onboard computer system, navigate to the transmission module, and clear the stored fault codes. Once the DTC P1700 has been successfully erased, a test drive can be conducted to ensure the issue has been resolved.
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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