Engine-Codes - Generic - P0873

P0873 Code - Transmission Fluid Pressure Sensor/Switch 'C' Circuit High

- Code Popularity: 14,681 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0873 Code?

  • Faulty Transmission Fluid Pressure Sensor/Switch 'C'
  • Transmission Fluid Pressure Sensor/Switch 'C' harness is open or shorted
  • Transmission Fluid Pressure Sensor/Switch 'C' circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

|How to Fix the P0873 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 P0873 code?

Labor: 1.0

The cost to diagnose the P0873 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 P0873 code possible symptoms?

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

|What Does the P0873 Code Mean?

The 4th clutch pressure switch is located in the hydraulic passage to the 4th clutch. When oil pressure is supplied to the 4th clutch, the switch is grounded, LOW. When oil pressure is not supplied, the switch is open, HI. The PCM receives the signal from the 4th clutch pressure switch to detect the fluid pressure status, in order to reduce the shift shock when shifting into 4th gear, from 3rd to 4th or 5th to 4th. If the 4th clutch pressure switch is ON when the gear ratio is not 4th gear, the PCM determines it is a fault and Diagnostic Trouble Code (DTC) P0872 sets. DTC P0872 is a type C DTC. The Diagnostic Trouble Code (DTC) will set if the 4th clutch pressure switch is ON when the transmission is in 5th gear for 2 seconds or greater.

Transmission Fluid Pressure Sensor/Switch 'C' Circuit High

|Need more information with the P0873 code?

Need more information on how to fix the P0873 code?
Get Access to Factory Service Manuals

|P0873 code information for specific makes

  • P0873 ACURA 4th Clutch Transmission Fluid Pressure Switch Short Or Stuck OFF
  • P0873 BUICK Transmission Fluid Pressure Sensor/Switch 'C' Circuit High
  • P0873 CADILLAC Transmission Fluid Pressure Sensor/Switch 'C' Circuit High
  • P0873 CHEVROLET Transmission Fluid Pressure Sensor/Switch 'C' Circuit High
  • P0873 DODGE Transmission Fluid Pressure Sensor/Switch 'C' Circuit High
  • P0873 GMC Transmission Fluid Pressure Sensor/Switch 'C' Circuit High
  • P0873 HONDA 4th Clutch Transmission Fluid Pressure Switch Short Or Stuck OFF
  • P0873 PONTIAC Transmission Fluid Pressure Sensor/Switch 'C' Circuit High
  • P0873 SATURN Transmission Fluid Pressure Sensor/Switch 'C' Circuit High
  • P0873 TOYOTA Transmission Fluid Pressure Sensor/Switch 'C' Circuit High

|Need help with a P0873 code?

Get the P0873 code diagnosed by a professional: Find a repair shop in your area