Engine-Codes - Generic - P0978

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

- Code Popularity: 9,317 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code P0978?

  • Faulty Shift Solenoid 'C'
  • Shift Solenoid 'C' harness is open or shorted
  • Shift Solenoid 'C' circuit poor electrical connection

|How to Fix the P0978 Code?

Start by checking 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's pins.

|What is the Cost to Diagnose the Code P0978?

Labor: 1.0

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

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|What are Code P0978 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 P0978 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 P0978 Code?

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