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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 430 (Powertrain Control Module (Pcm) - Electrical Diagnostics - 66RFE Automatic Transmission - 2500 Hd & 3500) >> Diagnosis And Testing >> P0846-2C Pressure Switch Rationality >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
RELATED DTCS PRESENT
(T147) 2C PRESSURE SIGNAL CIRCUIT OPEN
(T147) 2C PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND
(T147) 2C PRESSURE SIGNAL CIRCUIT SHORTED TO OTHER CIRCUITS
EXCESSIVE FLUID LEAKAGE IN 2C CLUTCH CIRCUIT
NO. 5 CHECK BALL CUT OR DAMAGED
LOW LINE PRESSURE
TRANSMISSION SOLENOID/TRS ASSEMBLY
POWERTRAIN CONTROL MODULE (PCM)
WIRING AND CONNECTORS

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE   . 

GEAR  L/R  2C  4C  UD  OD     
REVERSE  OPEN OPEN OPEN OPEN OPEN    
P/N  CLOSED** OPEN OPEN OPEN OPEN    
1ST  CLOSED* OPEN OPEN CLOSED OPEN    
2ND  OPEN CLOSED OPEN CLOSED OPEN    
2ND PRIME  OPEN OPEN CLOSED CLOSED OPEN    
3RD  OPEN OPEN OPEN CLOSED CLOSED    
4TH  OPEN OPEN CLOSED OPEN CLOSED    
5TH  OPEN CLOSED OPEN OPEN CLOSED    
*L/R is closed if output speed is below 100 rpm in Drive and Manual 2. L/R is closed in Manual 1.
**May be open when rolling in Neutral or at low oil temperatures.