Engine-Codes - Generic - P0978

P0978 Code - Shift Solenoid 'C' Control Circuit Range/Performance

- Code Popularity: 10,189 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC P0978?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Shift Solenoid 'C'
  • Shift Solenoid 'C' harness is open or shorted
  • Shift Solenoid 'C' circuit poor electrical connection
⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC P0978?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Search for P0978 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0978 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0978 Code Mean?

The Engine Control Module (ECM) commands gear shifts by turning the shift solenoid valves ON/OFF . When there is an open or short circuit in any shift solenoid valve circuit, the ECM detects the problem and illuminates the engine light and stores the Diagnostic Trouble Code (DTC), and the ECM performs the fail-safe function and turns the other shift solenoids valves in good condition ON/OFF .

P0978 Code - Shift Solenoid 'C' Control Circuit Range/Performance

Need more Information on the Code?

Need more information on how to fix the P0978 code? Get Access to Factory Service Manuals

Code P0978 Information for Specific Makes

  • P0978 Dodge Shift Solenoid 'C' Control Circuit Range/Performance

Need Help with the Code?

Get the P0978 code diagnosed by a professional: Find a repair shop in your area