P0796: Pressure Control Solenoid ‘C’ Performance or Stuck off OBD-II Trouble Code

A P0796 diagnostic trouble code is triggered when the pressure control solenoid either gets stuck in the ‘off’ position, or is not performing according to the manufacturer’s specifications.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

How Serious is the Code?

A P0796 DTC means the ECU can’t control the hydraulic pressure inside the transmission, which can lead to severe internal damage and safety issues (the engine can stall unexpectedly).

Symptoms

Symptoms of a P0796 include:

  • Check engine light
  • Harsh, delayed or erratic shifts
  • Slipping in-and-out of gear
  • Getting stuck in gear
  • Vehicle won’t move when in gear
  • Engine stalls
  • Reduced fuel economy
  • Transmission overheats
  • Limp mode

Causes

  • Low transmission fluid
  • Dirty transmission fluid / filter
  • Frayed wiring / damaged connectors
  • Failed pressure control solenoid
  • Failed transmission pump
  • Pressure blockage
  • Valve body issue
  • TCM or ECU failure

How to Diagnose the Code?

Because an OBD2 trouble code referring to pressure control solenoids, relates to pressure issues. The level and quality of transmission fluid needs to be considered when starting to diagnose a solenoid DTC. Dirty ATF is often a sign of internal problems, which may require a replacement transmission. Performing a transmission flush can sometimes provide a temporary fix. But if major damage to the transmission pump, valve body or torque convertor has already happened, it might not make any difference.

If there are no issues with the condition of the transmission fluid, then the wiring and connectors will need to be inspected before testing the pressure control solenoid directly. If testing finds no fault with the solenoid, then the valve body and transmission pump should be considered.

Common Mistakes When Diagnosing

It’s not uncommon for many mechanics to blame the transmission pump for this DTC, when it could actually be a wiring problem, or a faulty pressure control solenoid.

What Repairs Will Fix P0796?

  • Changing the fluid and filter
  • Replace faulty pressure control solenoid
  • Repair or replace a faulty transmission pump
  • Repair defective transmission valve body
  • Install a remanufactured valve body
  • Transmission flush to clean passages
  • Cleaning corrosion from connectors
  • Repairing or replacing wiring
  • Flashing or replacing PCM

Related Codes

P0795 – Pressure Control Solenoid ‘C’

P0797 – Pressure Control Solenoid ‘C’ Stuck On

P0798 – Pressure Control Solenoid ‘C’ Electrical

P0799 – Pressure Control Solenoid ‘C’ Intermittent

Fair Replacement Transmission Cost by Vehicle

  1. Find your transmission model in the table below for fair prices from reputable suppliers. Also fair labor cost for local installation at a local auto repair shop.

  2. Not Sure Which Transmission You Have?
    Click Here To Look It Up By Your Year, Make, Model
    Get Prices for Transmissions, Installation Hours and Estimated Install Cost

Fair Remanufactured Transmission Price Ranges by Transmission Model Updated for 2019

transmission repair cost
Download Replacement Transmission Cost Guide PDF

Full Transmission DTC Codes Table

Trouble CodeDescription
P0218Transmission Over Temperature Condition
P0700Transmission Control System (MIL Request)
P0701Transmission Control System Range/Performance
P0702Transmission Control System Electrical
P0703Torque Converter/Brake Switch B Circuit
P0704Clutch Switch In put Circuit Malfunction
P0705Transmission Range Sensor Circuit Malfunction (PRNDL Input)
P0706Transmission Range Sensor Circuit Range/Performance
P0707Transmission Range Sensor Circuit Low Input
P0708Transmission Range Sensor Circuit High Input
P0709Transmission Range Sensor Circuit intermittent
P0710Transmission Fluid Temperature Sensor Circuit
P0711Transmission Fluid Temperature Sensor Circuit Range/Performance
P0712Transmission Fluid Temperature Sensor Circuit Low Input
P0713Transmission Fluid Temperature Sensor Circuit High Input
P0714Transmission Fluid Temperature Sensor Circuit Intermittent P0715
P0715Input/Turbine Speed Sensor Circuit
P0716Input/Turbine Speed Sensor Circuit Range/Performance 
P0717Input/Turbine Speed Sensor Circuit No Signal
P0718Input/Turbine Speed Sensor Circuit Intermittent
P0719Torque Converter/Brake Switch B Circuit Low
P0720Output Speed Sensor Circuit
P0721Output Speed Sensor Circuit Range/Performance
P0722Output Speed Sensor Circuit No Signal
P0723Output Speed Sensor Circuit Intermittent
P0724 Torque Converter/Brake Switch B Circuit High
P0725Engine Speed Input Circuit
P0726Engine Speed Input Circuit Range/Performance
P0727Engine Speed Input Circuit No Signal
P0728Engine Speed Input Circuit Intermittent
P0729Gear 6 Incorrect Ratio
P0730Incorrect Gear Ratio
P0731Gear 1 Incorrect Ratio
P0732Gear 2 Incorrect Ratio
P0733Gear 3 Incorrect Ratio
P0734Gear 4 Incorrect Ratio
P0735Gear 5 Incorrect Ratio
P0736Reverse Incorrect Ratio
P0738TCM Engine Speed Output Circuit
P0739TCM Engine Speed Output Circuit Low
P0740Torque Converter Clutch Circuit Malfunction
P0741Torque Converter Clutch Circuit
P0742Torque Converter Clutch Circuit Stuck On
P0743Torque Converter Clutch Circuit Electrical
P0744Torque Converter Clutch Circuit Intermittent
P0745Pressure Control Solenoid 'A'
P0746Pressure Control Solenoid 'A' Performance or Stuck Off
P0747Pressure Control Solenoid 'A' Stuck On
P0748Pressure Control Solenoid 'A' Electrical
P0749Pressure Control Solenoid 'A' Intermittent
P0750Shift Solenoid 'A'
P0751Shift Solenoid 'A' Performance or Stuck Off
P0752Shift Solenoid 'A' Stuck On
P0753Shift Solenoid 'A' Electrical
P0754Shift Solenoid 'A' Intermittent
P0755Shift Solenoid 'B'
P0756Shift Solenoid 'B' Performance or Stuck Off
P0757Shift Solenoid 'B' Stuck On
P0758Shift Solenoid 'B' Electrical
P0759Shift Solenoid 'B' Intermittent
P0760Shift Solenoid 'C'
P0761Shift Solenoid 'C' Performance or Stuck Off
P0762Shift Solenoid 'C' Stuck On
P0763Shift Solenoid 'C' Electrical
P0764Shift Solenoid 'C' Intermittent
P0765Shift Solenoid 'D'
P0766Shift Solenoid 'D' Performance or Stuck Off
P0767Shift Solenoid 'D' Stuck On
P0768Shift Solenoid 'D' Electrical
P0769Shift Solenoid 'D' Intermittent
P0770Shift Solenoid 'E'
P0771Shift Solenoid 'E' Performance or Stuck Off
P0772Shift Solenoid 'E' Stuck On
P0773Shift Solenoid 'E' Electrical
P0774Shift Solenoid 'E' Intermittent
P0775Pressure Control Solenoid 'B'
P0776Pressure Control Solenoid 'B' Performance or Stuck Off
P0777Pressure Control Solenoid 'B' Stuck On
P0778Pressure Control Solenoid 'B' Electrical
P0779Pressure Control Solenoid 'B' Intermittent
P0780Shift Malfunction
P07811-2 Shift
P07822-3 Shift
P07833-4 Shift
P07844-5 Shift
P0785Shift/Timing Solenoid
P0786Shift/Timing Solenoid Range/Performance
P0787Shift/Timing Solenoid Low
P0788Shift/Timing Solenoid High
P0789Shift/Timing Solenoid Intermittent
P0790Normal/Performance Switch Circuit
P0791Intermediate Shaft Speed Sensor Circuit
P0792Intermediate Shaft Speed Sensor Circuit Range/Performance
P0793Intermediate Shaft Speed Sensor Circuit No Signal
P0794Intermediate Shaft Speed Sensor Circuit Intermittent
P0795Pressure Control Solenoid 'C'
P0796Pressure Control Solenoid 'C' Performance or Stuck off
P0797Pressure Control Solenoid 'C' Stuck On
P0798Pressure Control Solenoid 'C' Electrical
P0799Pressure Control Solenoid 'C' Intermittent
P0810Transmission Fluid Pressure Manual Valve Position Switch
P0811Maximum Adaptive and Long-Term Shift Times
P0812Transmission Fluid Overtemperature
P0813Torque Control Solenoid Malfunction
P0814Torque Converter Overstressed
P0816Transmission Fluid Pressure Manual Valve Position Switch Park/Neutral with Drive Ratio
P0817Transmission Fluid Pressure Manual Valve Position Switch Reverse with Drive Ratio
P0818Transmission Fluid Pressure Manual Valve Position Switch Drive without Drive Ratio
P0819Internal Mode Switch No Start/Wrong Range
P0820Internal Mode Switch Circuit ‘A’ Low
P0876Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance
P1821Internal Mode Switch Circuit ‘B’ Low
P1822Internal Mode Switch Circuit ‘B’ High
P1822Internal Mode Switch Circuit ‘B’ High
P1823Internal Mode Switch Circuit ‘P’ Low
P1824Internal Mode Switch Circuit ‘P’ High
P1825Internal Mode Switch Invalid Range
P1826Internal Mode Switch Circuit ‘C’ High
P1831Pressure Control Solenoid Power Circuit Low
P1832Pressure Control Solenoid Power Circuit High
P1833GM – TCC Solenoid Power Control Circuit Low Voltage
P1834GM – TCC Solenoid Power Control Circuit High Voltage
P1835Kick-Down Switch Circuit
P1836Kick-Down Switch Failed Open
P1837Kick-Down Switch Failed Short
P18421-2 Shift Solenoid Low Voltage
P18431-2 Shift Solenoid High Voltage
P1844Subaru – Transmission Fluid Pressure Sensor ‘A’ Circuit Intermittent
P18452-3 Shift Solenoid Low Voltage
P18472-3 Shift Solenoid High Voltage
P1850Brake Band Apply Solenoid Circuit
P1851Brake Band Apply Solenoid Performance
P1852Brake Band Apply Solenoid Low Voltage
P1853Brake Band Apply Solenoid High Voltage
P1860TCC PWM Solenoid Circuit Electrical
P1864Torque Converter Enable Solenoid Electrical Fault
P1866TCC PWM Solenoid Circuit Low Voltage
P1870Transmission Component Slipping: GM Transmission
P1871Undefined Gear Ratio
P1873Torque Converter Clutch Stator Temperature Switch Circuit Low Voltage
P1874Torque Converter Clutch Stator Temperature Switch Circuit High Voltage
P1886Transaxle Shift Timing Solenoid Performance
P1887Torque Converter Clutch Release Switch
P1890CVT Speed Control System
P1891Problem in Start Clutch Control System
P2700Transmission Friction Element A Apply Time Range/Performance
P2701Transmission Friction Element B Apply Time Range/Performance
P2702Transmission Friction Element C Apply Time Range/Performance
P2703Transmission Friction Element D Apply Time Range/Performance
P2704Transmission Friction Element E Apply Time Range/Performance
P2705Transmission Friction Element F Apply Time Range/Performance
P2706Transmission Friction Element F Malfunction
P2707Shift Solenoid F Performance / Stuck Off
P2708Shift Solenoid F Stuck On
P2709Shift Solenoid F Electrical
P2710Shift Solenoid F Intermittent
P2711Unexpected Mechanical Gear Disengagement
P2712Hydraulic Power Unit Leakage Intermittent
P2713Pressure Control Solenoid ‘D’
P2714Pressure Control Solenoid ‘D’ Performance or Stuck Off
P2715Pressure Control Solenoid ‘D’ Stuck On
P2716Pressure Control Solenoid ‘D’ Electrical
P2717Pressure Control Solenoid ‘D’ Intermittent
P2718Pressure Control Solenoid ‘D’ Circuit Open
P2719Pressure Control Solenoid ‘D’ Circuit Range/Performance
P2720Pressure Control Solenoid ‘D’ Control Circuit Low Voltage
P2721Pressure Control Solenoid ‘D’ Control Circuit High Voltage
P2722Pressure Control Solenoid ‘E’ Malfunction
P2723Pressure Control Solenoid ‘E’ Stuck Off
P2724Pressure Control Solenoid ‘E’ Stuck On
P2725Pressure Control Solenoid ‘E’ Electrical
P2726Pressure Control Solenoid ‘E’ Intermittent
P2727Pressure Control Solenoid E Ctrl Circ / Open
P2728Pressure Control Solenoid E Ctrl Circ Range/Perf
P2729Pressure Control Solenoid E Ctrl Circ Low Voltage
P2730Pressure Control Solenoid E Ctrl Circ High Voltage
P2731Pressure Control Solenoid F
P2732Pressure Control Solenoid F Performance or Stuck Off
P2733Pressure Control Solenoid F Stuck On
P2734Pressure Control Solenoid F Electrical
P2735Pressure Control Solenoid F Intermittent
P2736Pressure Control Solenoid F Ctrl Circ/Open

Leave a Comment