BMW DTC P1875 – 6-5 Shift Circuit High
DTC P1875 meaning on BMW
DTC P1875 on a BMW refers to the 6-5 Shift Circuit High fault. This diagnostic trouble code indicates that there is an electrical issue in the transmission’s 6-5 shift circuit, specifically that the voltage signal is higher than expected.
BMW DTC P1875 symptoms
Symptoms of DTC P1875 on a BMW may include harsh shifting between gears, delayed shifting, transmission slipping, and in some cases, the transmission may go into a limp mode where it operates in a single gear only.
BMW DTC P1875 causes
The common causes of DTC P1875 on a BMW include faulty wiring or connectors in the 6-5 shift circuit, a malfunctioning transmission control module (TCM), or a defective shift solenoid.
BMW DTC P1875 seriousness
DTC P1875 should be addressed promptly as it can lead to further transmission issues if left unresolved. Ignoring this fault may result in more severe transmission damage and potentially costly repairs.
How to diagnose DTC P1875 on BMW
To diagnose DTC P1875 on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes from the TCM. They would then inspect the wiring and connectors in the 6-5 shift circuit for any signs of damage or corrosion. Testing the shift solenoid and TCM functionality may also be necessary to pinpoint the exact cause of the fault.
How to fix DTC P1875 on BMW
Fixing DTC P1875 on a BMW may involve repairing or replacing any damaged wiring or connectors in the 6-5 shift circuit. If the issue lies with the shift solenoid or TCM, these components may need to be replaced. It is recommended to follow the manufacturer’s diagnostic and repair procedures to ensure a proper fix.
How to erase DTC P1875 on BMW
Once the underlying issue causing DTC P1875 on a BMW has been resolved, the fault code can be cleared using a diagnostic scanner. By clearing the code, the TCM will no longer register the fault, provided the repair was successful.
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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