TROUBLESHOOTING INSTRUCTIONS (CONT). -726280172

TM 9-2320-364-20-1

2-11. TROUBLESHOOTING INSTRUCTIONS (CONT).

(c)

Observe the data readout window displaying a second message indicating communication with the

DDEC Electronic Control Module (ECM). If needed, press ENTER on the DDR to display the

screen.

(d)

After a few seconds, the first four lines in a data list will appear on the screen.

(e)

Use the UP and DOWN arrow keys to move through the list. The first four lines appear as follows:

ACTIVE CODES

YES

HISTORIC CODE

YES

ENGINE RPM

xxxx

ECM VOLTAGE

xxx

Data Readout Window

(f)

If, at any time, you observe a NO DATA message on the screen, check the cable connector and

ensure the ENGINE switch is ON. Lastly, troubleshoot the DDEC ECM (Para 2-13).

(g)

Press the FUNC key to display the following screen:

FUNCTION SELECTIONS

SELECT DESIRED

[ENGINE] <- - - > PRO LINK

Data Readout Window

(h)

Use the LEFT arrow key to toggle to the ENGINE choice, then press ENTER.

(i)

Observe the Engine menu with a list of choices. You can move up and down on the list using the

UP and DOWN arrow keys.

ENG MENU SELECTIONS

DIAGNOSTIC CODES

Data Readout Window

(j)

Select DIAGNOSTIC CODES and press ENTER to display the next menu screen:

DIAGNOSTIC CODE MENU

MODE 01

ACTIVE CODES

Data Readout Window

(k)

Use the UP and DOWN arrow keys to select MODE 1 ACTIVE codes, MODE 2 HISTORIC

CODES and MODE 40 CLEAR CODES. Press ENTER for desired selections.

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