Engine-Codes - Generic - P0988

P0988 Code - 4C Pressure Switch Sense Circuit

- Code Popularity: 18,845 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 P0988?

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 4C Pressure Switch
  • 4C Pressure Switch harness is open or shorted
  • 4C Pressure Switch circuit poor electrical connection
  • Open Transmission Control Relay
  • Faulty Transmission Control Module (TCM)
⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC P0988?

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 P0988 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0988 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 P0988 Code Mean?

The Diagnostic Trouble Code (DTC) P0988 will set if 4C (4th clutch) pressure switch is open or closed at the wrong time in a given gear. For example, this DTC would be set if the 4C pressure switch came on while the transmission was in second gear. The transmission system will default to an immediate shutdown routine.

P0988 Code - 4C Pressure Switch Sense Circuit

Need more Information on the Code?

Need more information on how to fix the P0988 code? Get Access to Factory Service Manuals

Code P0988 Information for Specific Makes

Need Help with the Code?

Get the P0988 code diagnosed by a professional: Find a repair shop in your area