BMW DTC P2746 – Intermediate Shaft Speed Sensor ‘B’ Circuit Range/Performance
DTC P2746 meaning on BMW
DTC P2746 on a BMW indicates an issue with the Intermediate Shaft Speed Sensor ‘B’ circuit. This fault code is triggered when the signal from the sensor falls outside the expected range or performance parameters set by the vehicle’s engine control module (ECM).
BMW DTC P2746 symptoms
Symptoms of DTC P2746 on a BMW may include erratic shifting behavior, transmission slipping, harsh shifting, or the transmission going into limp mode. The Check Engine Light may also illuminate on the dashboard.
BMW DTC P2746 causes
The common causes of DTC P2746 on a BMW include a faulty Intermediate Shaft Speed Sensor ‘B’, damaged wiring or connectors in the sensor circuit, or issues with the transmission control module (TCM).
BMW DTC P2746 seriousness
Ignoring DTC P2746 on a BMW can lead to further damage to the transmission system and potentially result in costly repairs. It is important to address this issue promptly to prevent any long-term damage.
How to diagnose DTC P2746 on BMW
To diagnose DTC P2746 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the Intermediate Shaft Speed Sensor ‘B’ and its wiring. Testing the sensor’s resistance and checking for proper voltage signals can help pinpoint the issue.
How to fix DTC P2746 on BMW
Fixing DTC P2746 on a BMW may involve replacing the faulty Intermediate Shaft Speed Sensor ‘B’, repairing any damaged wiring or connectors in the circuit, 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 P2746 on BMW
To erase DTC P2746 on a BMW, the fault code can be cleared using a diagnostic scanner or by disconnecting the vehicle’s battery for a few minutes. However, it is recommended to address the underlying issue causing the fault code before clearing it to prevent it from reoccurring.
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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