Engine-CodesDodge – P0978 Dodge

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

Quick Answer

The P0978 diagnostic trouble code (DTC) for Dodge vehicles indicates an issue with the shift solenoid 'C' control circuit's range or performance. Common causes include Faulty shift solenoid 'C', Wiring or electrical issues in the control circuit, Low transmission fluid levels or contaminated fluid. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0978 Dodge indicates Shift Solenoid 'C' Control Circuit Range/Performance.
Common causes
Common causes include Faulty shift solenoid 'C', Wiring or electrical issues in the control circuit, Low transmission fluid levels or contaminated fluid.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0978 Dodge Description

The P0978 diagnostic trouble code (DTC) for Dodge vehicles indicates an issue with the shift solenoid 'C' control circuit's range or performance. The shift solenoid is a crucial component of the transmission system responsible for controlling the flow of transmission fluid to engage specific gears. In this case, the control circuit for solenoid 'C' is not functioning within the expected range or performance parameters, leading to potential transmission problems.

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

Common Causes of P0978 Dodge

  1. Faulty shift solenoid 'C'
  2. Wiring or electrical issues in the control circuit
  3. Low transmission fluid levels or contaminated fluid
  4. Malfunctioning transmission control module (TCM)
  5. Mechanical issues in the transmission system

Symptoms of P0978 Dodge

  1. Erratic shifting behavior
  2. Delayed or harsh gear changes
  3. Transmission slipping or failure to shift
  4. Reduced acceleration and fuel efficiency

How to Fix P0978 Dodge

  1. Diagnose the specific cause of the P0978 code using a scan tool and diagnostic procedures.
  2. Inspect the shift solenoid 'C' and its wiring for any signs of damage or malfunction.
  3. Check the transmission fluid level and condition; replace or flush the fluid if necessary.
  4. Test the transmission control module (TCM) for proper operation and potential reprogramming.
  5. Repair or replace any faulty components identified during the diagnostic process.

Cost to Fix P0978 Dodge

The typical repair costs for addressing a P0978 code can vary depending on the specific cause and the extent of the repairs needed. In general, the cost of replacing a shift solenoid or repairing wiring issues can range from $150 to $400, including parts and labor. However, additional costs may be incurred if other components require attention or if the transmission fluid needs to be replaced. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on the individual circumstances of the vehicle. Keep in mind that labor rates can vary significantly, so it's essential to consider local rates and shop around for the best deal.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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