System Configuration Parameters

TM 9-2320-312-24-2

Troubleshooting Section

System Configuration

When a personality module is replaced this code

must match the code that is stored in the ECM. If

Parameters

the personality module code does not match the

code that is stored in the ECM, both of the following

situations will exist:

i01182873

The engine will only run at low idle.

System Configuration

Parameters

A 253-02 Check Customer Or System Parameters

(56) Diagnostic Code will also be generated.

SMCS Code: 1901

Note: The flash programming of a personality

module replaces the personality module.

System Configuration Parameters affect the

emissions of the engine or the power of the engine.

When the engine is being rerated, programming

System Configuration Parameters are programmed

this code to 0 will prompt the ECM to read the

at the factory. System Configuration Parameters

stored code and programming this code to 0 will

would never need to be changed through the

prompt the ECM to match the stored code to the

life of the engine normally. System Configuration

Personality Module Code. This code does not need

Parameters must be reprogrammed if an ECM is

to be programmed when a personality module is

replaced. Unless the engine rating has changed,

replaced under both of the following conditions:

System Configuration Parameters do not need to

be reprogrammed when the Personality Module

The new personality module is from the same

is replaced. Proper values for these parameters

family.

are stamped on the engine information ratings

plate. The engine information ratings plate is

The new personality module is from the same

located on the valve cover or the air inlet manifold.

emission year.

Factory Passwords are required to change

these parameters. The following information is a

If the Personality Module is from a different family,

description of the System Configuration Parameters.

the following components may need to be changed:

pistons, injectors, and other components. The

"Full Load Setting"

engine information ratings plate must also be

changed in order to reflect the new rating.

"Full Load Setting" is a number that represents the

adjustment to the fuel system that was made at

Some vehicle systems such as the cooling system

the factory in order to fine tune the fuel system.

or the transmission may also require changes when

The correct value for this parameter is stamped on

the engine is rerated. Please contact the local OEM

the engine information ratings plate. A new ECM

dealer for further information.

requires this parameter to be programmed to avoid

generating a 253-02 Check Customer Or System

"Engine Serial Number"

Parameters (56) Diagnostic Code.

The "Engine Serial Number" should be programmed

"Full Torque Setting"

to match the engine serial number that is stamped

on the engine information plate. When a new ECM

"Full Torque Setting" is similar to "Full Load Setting".

is delivered, the engine serial number in the ECM

This parameter must be programmed to avoid

is not programmed.

generating a 253-02 Check Customer Or System

Parameters (56) Diagnostic Code.

"Personality Module Release Date"

Personality Module Code

This parameter is defined by the Personality

Module and this parameter is not programmable.

The Personality Module Code is a code that

The "Personality Module Release Date" is used to

prevents the use of an incorrect personality module

provide the version of the software. The Customer

for this engine. Each horsepower family and each

parameters and the software change levels can be

emission certification has a different code that

monitored by this date. The date is provided in the

is associated with the horsepower family or the

month and the year (NOV99). NOV is the month

emission certification.

(November). 99 is the year (1999).