Engine-Codes - Dodge - P0870 DODGE

P0870 DODGE Code - OD Hydraulic Pressure Test

- Code Popularity: 14,893 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0870 DODGE Code?

  • Faulty OD Hydraulic Pressure Switch
  • OD Hydraulic Pressure Switch harness is open or shorted
  • OD Hydraulic Pressure Switch circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
  • Internal transmission problem

|How to Fix the P0870 DODGE 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 P0870 DODGE code?

Labor: 1.0

The cost to diagnose the P0870 DODGE 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 P0870 DODGE code possible symptoms?

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

|What Does the P0870 DODGE Code Mean?

Pressure switches are normally off or open (no pressure applied) and read high (+12 volts). When an element is applied, the corresponding pressure switch closes to ground (0 volts) or turns on. The controller tests the OD and 2/4 pressure switches when they are off (when the corresponding friction element is not applied) by briefly applying the OD and 2/4 elements which will cause the corresponding pressure switch to close. The test verifies that the switches are operational and that the switch will close when the corresponding element is applied. If a switch fails to respond, it is re-tested. The MIL illuminates and the transmission system defaults to Limp-in mode.
After a shift into a forward gear, with engine speed greater than 1000 RPM, the PCM momentarily turns on element pressure to the clutch circuits that don't have pressure to identify the correct pressure switch closes. If the pressure switch does not close 2 times the Diagnostic Trouble Code (DTC) sets.

OD Hydraulic Pressure Test

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