BMW DTC P097B – Shift Solenoid ‘B’ Control Circuit/Open
DTC P097B meaning on BMW
DTC P097B indicates a malfunction in the Shift Solenoid ‘B’ control circuit on a BMW vehicle. The Powertrain Control Module (PCM) has detected an open circuit in the electrical connection related to the operation of the Shift Solenoid ‘B’. This solenoid is responsible for controlling the hydraulic pressure that engages and disengages the transmission gears.
BMW DTC P097B symptoms
Symptoms of DTC P097B on a BMW may include harsh shifting, delayed shifting, transmission slipping, or the transmission not shifting at all. The vehicle may also experience decreased fuel efficiency and an illuminated Check Engine Light on the dashboard.
BMW DTC P097B causes
The common causes of DTC P097B on a BMW include a faulty Shift Solenoid ‘B’, damaged wiring or connectors in the control circuit, low transmission fluid level, or a malfunctioning PCM.
BMW DTC P097B seriousness
Ignoring DTC P097B on a BMW can lead to further damage to the transmission system, potentially resulting in costly repairs. It is important to address this issue promptly to prevent any long-term damage to the vehicle.
How to diagnose DTC P097B on BMW
To diagnose DTC P097B on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes stored in the PCM. They would then inspect the Shift Solenoid ‘B’ and its wiring for any visible damage. Testing the solenoid’s resistance and checking the transmission fluid level may also be necessary to pinpoint the exact cause of the issue.
How to fix DTC P097B on BMW
Fixing DTC P097B on a BMW may involve replacing the faulty Shift Solenoid ‘B’, repairing any damaged wiring or connectors, topping up the transmission fluid, or reprogramming the PCM if necessary. It is recommended to follow the manufacturer’s repair procedures and use genuine parts to ensure a proper fix.
How to erase DTC P097B on BMW
After fixing the underlying issue causing DTC P097B on a BMW, the fault codes can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow the vehicle’s PCM to monitor the system for any new faults. It is important to verify that the issue has been resolved before clearing the codes.
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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