Engine-Codes - Generic - P0978

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

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|P0978 code possible causes

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

|How is the P0978 code repair?

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 P0978 code

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.

|What are P0978 code possible symptoms?

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

|What is P0978 code meaning?

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 .

|Need more information with the P0978 code?

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|P0978 code information for specific makes

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

|Need help with a P0978 code?

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