Engine-Codes - Jeep - P0778 Jeep

P0778 Jeep Code - Shift Pressure Solenoid Circuit

- Code Popularity: 10,993 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code P0778 Jeep?

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty Shift Pressure Solenoid valve
  • Shift Pressure Solenoid valve harness is open or shorted
  • Shift Pressure Solenoid valve circuit poor electrical connection

|How to Fix the P0778 Jeep 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.

|Code P0778 Jeep Tech Notes

When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure and that the transmission will need to be rebuilt or replaced.

|What is the Cost to Diagnose the Code P0778 Jeep?

Labor: 1.0

The cost to diagnose the P0778 Jeep 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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|When is the P0778 Jeep Code Detected?

The TCM has detected voltage on the shift pressure solenoid during a period when the solenoid is not active

|What are Code P0778 Jeep Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Transmission shift shock

|What Does the P0778 Jeep Code Mean?

The shift pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).

P0778 Jeep Code - Shift Pressure Solenoid Circuit

|Need more Information on the P0778 Jeep Code?

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|Need Help with the P0778 Jeep Code?

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