Craftsman 3130eSC Manuale Utente

 

 

 

 

 

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Chrysler Motors introduced its first electronic fuel injected vehicle in late 
1983. The on-board computer management systems used on Chrysler 
vehicles have evolved over the years, and their names have changed 
accordingly. 

1983-87:  The on-board computer used in these vehicles is a split-
system, composed of two separate units: the Logic Module and the 
Power Module. The Logic Module contains a microprocessor which 
processes data received from sensors located throughout the vehicle 
and makes decisions (based on these inputs) which effect engine 
operation. The Logic Module is usually located on the right-hand side, 
behind the kick panel. The Power Module supplies operating power to 
the Logic Module, and contains the circuits which control the high-
current devices. Power Module operation is controlled by the Logic 
Module. The Power Module is located in the engine compartment, near 
the vehicle’s battery. 

1987-90:  This system is called a Single Module Engine Controller 
(SMEC). This system still uses two separate circuit boards (Logic 
Module and Power Module). However, both circuit boards are located in 
a common enclosure. 

1989-95:  This system is called a Single Board Engine Controller 
(SBEC). On this system, the Logic Module and Power Module circuit 
boards are integrated on a single circuit board. 

1993-97:  Beginning in 1993, the computer was renamed the 
Powertrain Control Module (PCM). In addition to controlling the engine 
management system and emission system, the computer also takes 
an active role in controlling powertrain (transmission system) 
operation. 

1993-95:  In 1993, Jeep on-board computer systems (fuel injected 
vehicles only) were converted to the Chrysler on-board computer 
systems. All 1993 through 1995 fuel injected Jeep and Chrysler vehicles 
are equipped with similar on-board computer systems.