The P0980: Shift Solenoid ‘C’ Control Circuit High refers to an issue where the shift solenoid ‘C’ control circuit is experiencing higher than expected voltage. This can cause the solenoid to malfunction, leading to improper transmission operation and shifting issues.
P0980 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0980: Shift Solenoid ‘C’ Control Circuit High |
| Is it serious? | Yes, high voltage can damage the solenoid and cause improper shifting, affecting transmission performance. |
| Possible causes | – High voltage in the shift solenoid ‘C’ control circuit – Faulty shift solenoid ‘C’ – Wiring or connector issues |
| How to diagnose? | – Check the circuit for high voltage – Inspect wiring and connectors – Replace the shift solenoid ‘C’ if necessary |
P0980 Meaning
The P0980: Shift Solenoid ‘C’ Control Circuit High code indicates that the voltage in the shift solenoid ‘C’ control circuit is higher than the expected range. High voltage can prevent the solenoid from operating properly, leading to transmission shifting problems such as rough shifts, delayed engagement, or transmission slippage.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for additional fault codes that may provide more information about the high voltage issue. | OBD-II Scanner |
| Test for High Voltage | Use a multimeter to check the voltage in the shift solenoid ‘C’ control circuit. Compare the voltage readings with manufacturer specifications to determine if they are too high. | Multimeter |
| Inspect Wiring and Connectors | Inspect the wiring and connectors for signs of damage, corrosion, or loose connections that could be causing high voltage in the solenoid circuit. | Flashlight, Multimeter |
| Test the Solenoid | Test the shift solenoid ‘C’ for proper functionality. Replace the solenoid if it is malfunctioning or receiving excessive voltage. | Diagnostic Tool, Replacement Solenoid |
| Clear the Code and Test Drive | After making repairs, clear the code using an OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the system to ensure the P0980 code does not return after the test drive. | OBD-II Scanner |
Free PDF: How to choose OBD2 scanner
I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.
✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners
PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide.
Just tell me where to send it.
Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)