P0972 Fault Code

Shift Solenoid A Control Circuit Range/Performance

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0972 fault code indicates an issue with the Shift Solenoid A control circuit range or performance in a vehicle's transmission system. This code signifies that the Engine Control Module (ECM) detected an out-of-range performance problem in the solenoid circuit. It can lead to shifting issues, making it crucial to address promptly to maintain optimal vehicle performance.

What are the symptoms of the P0972 code?

If you encounter the P0972 code, you may experience the following symptoms:

• Harsh or Erratic Shifts: Noticeable delays or sudden shifts when changing gears.
• Check Engine Light: The dashboard's check engine light will illuminate, indicating that a fault has been detected.
• Reduced Acceleration: Lack of power during acceleration which may affect overall performance.
• Transmission Overheating: Increased temperatures due to improper fluid flow or malfunctioning components.

What causes the P0972 code?

Several factors can cause the P0972 code, such as:

• Faulty Shift Solenoid A: The solenoid might be defective and unable to function properly.
• Wiring Issues: Damaged or corroded wires and connectors in the shift solenoid circuit can disrupt the electrical flow.
• Transmission Fluid Level: Low or contaminated transmission fluid can affect solenoid operation and performance.
• ECM Malfunction: A failing engine control module could incorrectly report the solenoid performance, triggering the code.

How to fix P0972?

To resolve the P0972 fault code, you can take the following steps:

• Inspect Shift Solenoid A: Test and, if necessary, replace the shift solenoid to ensure proper functionality.
• Check Wiring and Connections: Examine the wiring harness and connectors for any damage, corrosion, or loose connections. Repair or replace as needed.
• Transmission Fluid Service: Verify and adjust the transmission fluid level, changing the fluid if dirty or contaminated.
• ECM Testing: Check the ECM for faults. If it's malfunctioning, replacing it might be necessary.