2-4 or 2C Pressure Switch Rationality
Table of contents
P0846 RAM Possible Causes
- 2/4 Pressure Switch harness is open or shorted
- 2/4 Pressure Switch circuit poor electrical connection
- Faulty 2/4 Pressure Switch
- Internal transmission damage
- Faulty Powertrain Control Module (PCM)
- Faulty Transmission Control Module (TCM)
How do I fix code P0846 RAM?
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’s pins.
Cost of diagnosing the P0846 RAM code
The cost of diagnosing the P0846 RAM code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission will not shift gears.
P0846 RAM Description
The Powertrain Control Module (PCM) uses three pressure switches to monitor the fluid pressure in the LR, 2/4, and OD clutch circuits. The pressure switches are continuously monitored for the correct states in each gear as shown below. This Diagnostic Trouble Code (DTC) is set if the 2/4 pressure switch is open or closed at the wrong time in a given gear.