P0978
Shift Solenoid C Control Circuit Range/Performance
P0978 is an OBD-II diagnostic trouble code meaning: Shift Solenoid C Control Circuit Range/Performance. Common causes: shift solenoid c malfunction, open or short circuit in control circuit. Estimated repair cost: $17–56.
Symptoms
- Incorrect gear shifting
- Hard gear shifts
- Transmission transition to emergency mode
- Check Engine light comes on
- Reduced transmission efficiency
Causes
- Shift solenoid C malfunction
- Open or short circuit in control circuit
- Poor connection or corrosion in connectors
- Transmission control module (TCM) malfunction
- Problems with the hydraulic transmission system
How to Fix
- Check solenoid C control circuit for opens and shorts.
- Check connections and connectors for corrosion or damage
- Check the resistance and functionality of solenoid C
- Replace solenoid C if necessary
- Check and, if necessary, replace the transmission control module (TCM)
Related codes
Error P0978 by Vehicle Brand
FAQ
What does the P0978 code mean?
P0978 is an OBD-II diagnostic trouble code that indicates: Shift Solenoid C Control Circuit Range/Performance
What causes a P0978 error code?
The most common causes of P0978 include: Shift solenoid C malfunction; Open or short circuit in control circuit; Poor connection or corrosion in connectors; Transmission control module (TCM) malfunction.
How do I fix a P0978 diagnostic trouble code?
To fix P0978: Check solenoid C control circuit for opens and shorts.. Check connections and connectors for corrosion or damage. Check the resistance and functionality of solenoid C. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0978?
Yes, but get it checked soon
How much does it cost to fix P0978?
The estimated repair cost for P0978 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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