The P0984 code is an OBD-II trouble code that indicates a problem with the shift solenoid “E” control circuit in the vehicle’s transmission system. This code is significant as it relates to the vehicle’s ability to shift gears properly, which is vital for smooth operation.
What Does the P0984 Code Mean?
The P0984 code is triggered when the Transmission Control Module (TCM) detects that the shift solenoid “E” is not performing as expected. This solenoid controls the hydraulic pressure necessary for engaging the various clutch packs in the transmission, which in turn determines the gear ratios for efficient vehicle propulsion.
What Causes the P0984 Code?
- Transmission Control Module (TCM) failure
- Low transmission fluid level
- Failure of the transmission shift solenoid
- Wiring issues related to the solenoid or TCM
What Are the Symptoms of the P0984 Code?
- Transmission may not shift properly
- Increased fuel consumption
- Delayed or harsh shifting
How Serious Is the P0984 Code?
The P0984 code is considered urgent. It indicates a malfunction that can significantly affect the vehicle’s transmission performance, leading to potential severe damage to the transmission system or even posing safety risks to the driver and passengers if not addressed promptly.
How to Diagnose the P0984 Code
To diagnose the P0984 code, a mechanic will typically follow these steps:
- Use an OBD-II scanner to confirm the presence of the P0984 code.
- Inspect the transmission fluid level and condition.
- Check the wiring and connectors associated with the shift solenoid and TCM.
- Test the shift solenoid “E” for proper operation.
- Assess the TCM functionality.
Common Repairs for the P0984 Code
- Replacing the transmission shift solenoid
- Repairing or replacing damaged wiring or connectors
- Refilling or flushing the transmission fluid
- Replacing the Transmission Control Module (TCM)
How Much Does It Cost to Fix the P0984 Code?
The cost to fix the P0984 code can vary widely based on the underlying issue. Simple repairs, like changing the transmission fluid or solenoid, can range from $100 to $300. However, replacing the TCM might cost between $500 and $1,000 or more, depending on the vehicle make and model.
Can I Fix the P0984 Code Myself?
If you have experience with automotive repairs and diagnostics, you might be able to address some aspects of the P0984 code yourself, such as checking fluid levels or inspecting wiring. However, due to the complexity of transmission systems and the risks involved, it is often advisable to consult a professional for accurate diagnosis and repair.
