BMW DTC P173E – Shift Rod 1/3 Sensor Circuit Low
DTC P173E meaning on BMW
DTC P173E indicates a fault in the Shift Rod 1/3 Sensor Circuit on a BMW vehicle. This fault is related to the sensor that monitors the position of the shift rod, specifically between gears 1 and 3.
BMW DTC P173E symptoms
Symptoms of DTC P173E on a BMW may include erratic shifting behavior, transmission slipping, harsh shifting between gears 1 and 3, and in some cases, the transmission may go into limp mode.
BMW DTC P173E causes
The most common causes of DTC P173E on a BMW are a faulty shift rod 1/3 sensor, damaged wiring or connectors in the sensor circuit, or a malfunction in the transmission control module.
BMW DTC P173E seriousness
DTC P173E should be addressed promptly as it can lead to further transmission issues if left unresolved. Ignoring this fault may result in more severe transmission problems and potential safety hazards.
How to diagnose DTC P173E on BMW
To diagnose DTC P173E on a BMW, a mechanic will typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the shift rod 1/3 sensor and its wiring. They may also conduct tests to check the sensor’s functionality and the integrity of the circuit.
How to fix DTC P173E on BMW
Fixing DTC P173E on a BMW usually involves replacing the faulty shift rod 1/3 sensor, repairing any damaged wiring or connectors, or addressing any issues with the transmission control module. Once the root cause is identified and resolved, the fault code should be cleared.
How to erase DTC P173E on BMW
To erase DTC P173E on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s memory. After the repair has been completed and the underlying issue fixed, the fault code can be erased to reset the system and ensure that the problem 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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.