BMW DTC P1726 – Turbine Speed and Engine Speed in Transmission Range N Correlation
DTC P1726 meaning on BMW
DTC P1726 on a BMW refers to the ¨Turbine Speed and Engine Speed in Transmission Range N Correlation¨ fault. This diagnostic trouble code indicates that there is a discrepancy between the rotational speeds of the transmission turbine and the engine while the transmission is in neutral.
BMW DTC P1726 symptoms
Symptoms of DTC P1726 on a BMW may include abnormal shifting behavior, harsh gear engagement, transmission slipping, reduced fuel efficiency, and in some cases, the transmission may go into a fail-safe mode to prevent further damage.
BMW DTC P1726 causes
The causes of DTC P1726 on a BMW can vary and may include issues with the transmission speed sensors, wiring harness faults, faulty transmission control module (TCM), mechanical problems within the transmission, or software glitches.
BMW DTC P1726 seriousness
DTC P1726 should not be ignored as it can lead to further transmission damage if left unresolved. Driving with this fault present can cause additional stress on the transmission components and may result in costly repairs if not addressed promptly.
How to diagnose DTC P1726 on BMW
To diagnose DTC P1726 on a BMW, a diagnostic scan tool capable of reading transmission fault codes is required. The technician will need to perform a thorough inspection of the transmission system, including checking the speed sensors, wiring connections, and the TCM for any signs of damage or malfunction.
How to fix DTC P1726 on BMW
Fixing DTC P1726 on a BMW may involve replacing faulty speed sensors, repairing damaged wiring, updating the TCM software, or addressing any mechanical issues within the transmission. It is recommended to consult with a qualified mechanic or BMW specialist to accurately diagnose and repair the fault.
How to erase DTC P1726 on BMW
Once the underlying issue causing DTC P1726 on a BMW has been resolved, the fault code can be cleared using a diagnostic scan tool. By erasing the fault code, the vehicle’s onboard computer will reset the transmission system adaptations and monitor for any recurring issues.
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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