P0980 Fault Code

Shift Solenoid C Control Circuit High

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

The P0980 fault code indicates an issue with the Shift Solenoid C Control Circuit. This solenoid is responsible for regulating the flow of transmission fluid to enable the smooth shifting of gears. If the control circuit is sending a high signal or experiencing a malfunction, it can lead to improper shifting, which can affect vehicle performance.

What are the symptoms of the P0980 code?

Symptoms associated with a P0980 code may include:

• Harsh or delayed shifting between gears
• Inability to shift into certain gears
• Transmission slipping or hesitating during gear changes
• Warning lights on the vehicle’s dashboard, indicating a transmission issue
• Increased engine RPM without corresponding vehicle speed

What causes the P0980 code?

The potential causes of a P0980 code include:

• Faulty shift solenoid C
• Wiring issues such as frayed or damaged wires in the control circuit
• Poor electrical connections at the solenoid or PCM (Powertrain Control Module)
• A malfunctioning PCM that fails to send appropriate signals to the solenoid
• Transmission fluid issues, such as low levels or contamination

How to fix P0980?

To resolve the P0980 fault code, follow these steps:

1. Inspect the wiring and connectors for damage or corrosion, and repair as necessary.
2. Test the shift solenoid C for proper operation. Replace it if it's faulty.
3. Check the transmission fluid level and quality; change it if it's dirty or low.
4. Scan the PCM for additional error codes that may provide more insight into the issue; address any other codes present.
5. If everything else appears fine, consider reprogramming or replacing the PCM after exhausting other options.