#Dodge ram pressure switch location code#

#Dodge ram pressure switch location code#

Mitsubishi, noticing that the strategy with pressure switches 5 & 6 had related solenoid activity, decided not to split the code and assigned them both to the same code: P0761. The exceptions to this are P0766 and P0706. Mitsubishi chose to assign the code directly to the pressure switch itself Dodge chose to call it a performance code with the solenoid related to the operation of the pressure switch. The chart in Figure 4 illustrates this point exactly by comparing Mitsubishi with Dodge. Understanding how a pressure-switch code can set also explains the different ways a manufacturer will present the code. When a pressure-switch code sets, the cause can be a mechanically failed solenoid, a stuck shift valve, a mechanically faulty pressure switch or the wire going to the switch being open or shorted to ground.

The AS68RC uses a total of eight pressure switches, most of which monitor solenoid activity ( Figure 3). With this unit being in Mitsubishi as early as 2005, our tech lines have already received numerous calls concerning this unit, most of which have been in regard to pressure-switch codes. In addition to Dodge vehicles, this transmission is found in Mitsubishi (AS6), Nissan (M036A6) and Isuzu (A465) medium-duty trucks. The six-speed AS68RC transmission uses a similar strategy ( figures 1 and 2). If the solenoid is performing poorly, or the valve is sticking, the pressure switch will not close, causing the associated code to set. A solenoid needs to stroke a valve, which then sends oil pressure to the switch to close it. When an Allison 1000/2000 transmission produces a pressure-switch code, it does not necessarily mean the pressure switch is faulty.

Essential Reading: Rebuilder, Diagnostician.Vehicle Applications: Dodge, Isuzu, Mitsubishi and Nissan medium-duty trucks.Subject: Causes of pressure-switch codes.