Electronic Component Description 7D1
Should any transmission operation by the PCM begin to operate outside its pre-set parameters, the PCM has the ability to store a range of diagnostic codes that can be accessed by the servicing Technician, thereby localizing the problem.
PCM Sensors and Actuators
As indicated earlier, there are a number of sensors and switches that provide input information for the PCM programming that will allow the PCM to change the shift pattern, shift feel and torque converter clutch operation.
The PCM does this by comparing this input information with its predetermined values on shift pattern, fluid pressure maps, shift duration parameters, extreme heat protection programming and adaptive controls.
In addition, each input signal and output actuator operation is also monitored and if outside its pre-set parameters, a diagnostic code is logged for future reference by the servicing Technician.
