BMW DTC P0984 – Shift Solenoid ‘E’ Control Circuit Range/Performance
DTC P0984 meaning on BMW
DTC P0984 on a BMW indicates a malfunction in the Shift Solenoid ‘E’ control circuit. This fault code is triggered when the Powertrain Control Module (PCM) detects that the input signal from the transmission control module (TCM) related to the operation of Shift Solenoid ‘E’ is outside the expected range or performance parameters.
BMW DTC P0984 symptoms
Symptoms of DTC P0984 on a BMW may include harsh shifting, delayed shifting, transmission slipping, transmission overheating, and in some cases, the transmission may go into a limp mode where it operates in a single gear only.
BMW DTC P0984 causes
The common causes of DTC P0984 on a BMW include faulty Shift Solenoid ‘E’, damaged wiring or connectors in the solenoid circuit, low transmission fluid level, dirty or contaminated transmission fluid, or a malfunctioning TCM.
BMW DTC P0984 seriousness
Ignoring DTC P0984 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 P0984 on BMW
To diagnose DTC P0984 on a BMW, a mechanic would typically start by using a diagnostic scanner to retrieve the fault codes from the PCM. They would then inspect the Shift Solenoid ‘E’ and its wiring for any visible damage or corrosion. Testing the solenoid’s resistance and checking the transmission fluid level and condition are also common diagnostic steps.
How to fix DTC P0984 on BMW
Fixing DTC P0984 on a BMW may involve replacing the faulty Shift Solenoid ‘E’, repairing or replacing damaged wiring or connectors, ensuring the transmission fluid is at the correct level and in good condition, and resetting the TCM. It is recommended to follow the manufacturer’s repair procedures and use genuine parts for a lasting solution.
How to erase DTC P0984 on BMW
Once the underlying issue causing DTC P0984 on a BMW has been fixed, the fault code can be erased using a diagnostic scanner. This will clear the code from the PCM’s memory and turn off the check engine light. It is important to verify that the issue has been resolved before clearing the fault code.
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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