Customer Passwords

TM 9-2320-312-24-2

Troubleshooting Section

1. Use the ET to access the Utilities Menu. Then

Note: On initial powerup of a new ECM, the following

access View Passwords under the Utilities Menu.

parameters must be programmed to avoid activating

253-02 Check Customer Or System Parameters

2. When the Factory Password screen appears,

(56): "Full Load Setting (FLS)", "Full Torque Setting

record the information that is listed on the Factory

(FTS)", "Vehicle Speed Calibration" (ppm), "Rating

Passwords Worksheet. Refer to Troubleshooting,

Number", and "Engine Serial Number".

"Factory Passwords Worksheet".

a. Use ET to access System Configuration

3. Obtain the factory passwords. The information

Parameters. Enter the following parameters

that is recorded on the Factory Passwords

that are recorded on the worksheet: "Full Load

Worksheet must be provided. When the factory

Setting (FLS)", "Full Torque Setting (FTS)",

passwords are obtained, a permanent record of

and "Engine Serial Number".

the access is generated at Caterpillar.

b. Use ET to access Customer Specified

4. From the Factory Password screen, enter the

Parameters. Enter the Customer Specified

factory passwords.

Parameters and the original Customer

Passwords that are recorded on the

5. When the Read Customer Passwords screen

worksheet.

appears, record the customer passwords. The

customer passwords may then be used to

c. Use ET to access Current Totals from

change customer parameters.

the Read/Change Current Totals main

menu. Record the information by using

the Troubleshooting, "Factory Passwords

i01641423

Worksheet" to obtain the factory passwords.

ECM Date/Time Stamped

Enter the totals from the original ECM that are

recorded on the worksheet.

Information

d. Select the following screens in order to

SMCS Code: 1901

calibrate the engine timing: "Service",

"Calibrations", and "Timing Calibration".

The date/time clock indicates the month, the day,

Calibrate the timing. Refer to Troubleshooting,

the year and the time of day. This clock is used to

"Engine Speed/Timing Circuit - Test".

time stamp the following diagnostic event codes:

10. Install the new ECM on the engine.

84-00 Vehicle Overspeed Warning

i01330282

110-11 Very High Coolant Temperature

Customer Passwords

111-11 Very Low Coolant Level

SMCS Code: 1901

190-00 Engine Overspeed Warning

If Customer passwords have been entered, then

The following types of ECM data are also time

the customer passwords are required to change

stamped information:

ANY customer parameter. Customer parameters

are those parameters that affect the vehicle speed

Diagnostic snapshots

limits, the power rating within an engine family

and the PTO operation. Refer to Troubleshooting,

Snapshots that are triggered by using the

"Customer Specified Parameters" for more detail on

set/resume switch

parameters that are customer programmable.

Quick Stop snapshots

An ET or a MPSI Pro-Link with the Caterpillar

cartridge may change customer parameters. To

obtain customer passwords, contact the owner

of the vehicle. If the owner has lost the owner's

passwords, customer passwords may be read by

using an ET.

Note: Factory passwords are required in order to

read customer passwords.

Use the following procedure in order to read

customer passwords with an ET: