Data display. -726280177

TM 9-2320-364-20-1

(4)

Data display.

(a)

Data readout. The main function of the DDR is to provide you with data from the truck's on-board

computer, called the ATEC electronic control unit (ECU). This is what the DDR automatically does

after the system type has been determined.

If the DDR is unable to established communication with the ATEC ECU in the truck, you will

see a NO DATA display. Press ENTER to command the DDR to try again.

NO ATEC DATA

RECEIVED

ENTER TO RETRY

Data Readout Window

If communication cannot be establish and the NO DATA display reappears, see Step (4)(b).

When communication is established and the correct transmission type input, you will see the

system configuration screen.

ATEC I SYSTEM

DATA LIST

MT(B) 600 OR V. VH (B)

OR C(L)(B)T 700

Data Readout Window

This display will appear for about three seconds.

ECU A/N 16035879

DIAG CODES 21 32

TPS 128 CNTS 50 2%

RANGE SEL N ATT N

Data Readout Window

Use the UP and DOWN arrow keys to scroll through the entire data list. Pressing a key causes

the display to move one line. Holding a key causes the display to scroll quickly. Pressing the

LEFT arrow key causes the display to advance four lines. Pressing the RIGHT arrow key

causes the display to move backward four lines. When you reach the end of the list, you will

see the display that tells you which system you are testing.

NOTE

Parameters in the data list that do not pertain to the system you are testing will be

designated by NA, meaning not available.

For an explanation of each of the items in the data list, refer to Steps (11) through (30) of this

section.

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