P0974 Fault Code
P0974 OBD-II Trouble Code Short Description
Shift Solenoid A Control Circuit High
What does trouble code P0974 mean?
The P0974 fault code indicates a problem with the Shift Solenoid A Control Circuit. This code is triggered when the vehicle's transmission control module detects an out-of-range signal from the shift solenoid A, which is responsible for managing the hydraulic pressure needed to shift gears. An irregular signal can result in gear shifting issues or erratic transmission behavior.
Symptoms
What are the symptoms of the P0974 code?
- Harsh or delayed shifting between gears
- Transmission overheating
- Warning lights illuminated on the dashboard
- Unusual noises coming from the transmission
- Possible failure to shift into certain gears
Causes
What causes the P0974 code?
- Failed shift solenoid A
- Open or short circuit in the wiring harness
- Poor electrical connections or corroded connectors
- Faulty transmission control module (TCM)
- Low transmission fluid levels or contamination
Possible Solutions
How to fix P0974?
- Inspect and repair any damaged wiring or connectors related to the shift solenoid A
- Replace the faulty shift solenoid A
- Check and ensure the transmission fluid is at the correct level and free of contamination
- Reset the TCM and clear the fault codes to see if the issue persists
- If necessary, replace the transmission control module