Engine-Codes - Generic - P0872

P0872 - Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0872 Possible Causes

  • 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 is the P0872 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 P0872 code

Labor: 1.0

The cost to diagnose the P0872 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

P0872 Meaning

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 OFF when the transmission is in 5th gear for 2 seconds or greater.

More Information

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Information for specific makes

  • P0872 ACURA 4th Clutch Transmission Fluid Pressure Switch Short Or Stuck ON
  • P0872 BUICK Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low
  • P0872 CADILLAC Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low
  • P0872 CHEVROLET Pressure Switch Solenoid 'E' Circuit Low/Stuck Closed
  • P0872 CHEVROLET Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low
  • P0872 DODGE Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low
  • P0872 GMC Pressure Switch Solenoid 'E' Circuit Low/Stuck Closed
  • P0872 GMC Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low
  • P0872 HONDA 4th Clutch Transmission Fluid Pressure Switch Short Or Stuck ON
  • P0872 PONTIAC Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low
  • P0872 SATURN Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low
  • P0872 TOYOTA Transmission Fluid Pressure Sensor/Switch 'C' Circuit Low

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