The ECU has three status LEDs on the cover: green (power), yellow (alarm), and red (shutdown) (see Figure 4.00-4). The green LED is on whenever power is applied to the ECU. The yellow and red LEDs flash codes when an alarm or shutdown occurs. A fault code is determined by counting the sequence of flashes for each color.
Figure 4.00-4. ECU Status LEDs
View Faults Manual Actuator Calibration
Reset Status LEDs Version Details
Start Logging All Stop Logging All
Send Calibration to ECU Change Units
Save to ECU Start Editing
Undo Last Change Undo All Changes
View Faults
Table 4.00-1. Acronyms in Fault Log Descriptions
ACRONYM DEFINITION
BK Back
FLT Fault
FT Front
IGN Ignition
IMAP Intake Manifold Air Pressure LB Left Bank
OC Open Circuit RB Right Bank SC Short Circuit
SH Scale High (sensor value higher than normal operating range)
SL Scale Low (sensor value lower than normal operating range)
FAULT TYPE
FAULT DESCRIPTION OPEN CIRCUIT
ALM211 OIL PRESS OC
3-DIGIT CODE
STATUS LEDs
At the start of the code sequence, both the red and yellow LEDs will flash three times simultaneously. If there are any emergency shutdown faults, the red LED will flash a three-digit code for each shutdown fault that occurred. Then, if there are any alarm faults, the yellow LED will flash a three-digit code for each alarm that occurred.
Between each three-digit code, both yellow and red LEDs will flash once at the same time to indicate that a new code is starting. The fault codes display in the order that they occur (with the oldest displayed code first and the most recent code displayed last).
NOTE: Once the fault is corrected, the status LEDs on the ECU will remain flashing until either the LEDs are cleared using ESP or the engine is restarted.
Using Fault Codes for Troubleshooting
Once you have determined the fault code, you can begin ESM troubleshooting. ESP features an elec-tronic help file named E-Help that has detailed trouble-shooting information for each fault. However, if you do not have access to a PC, Table 4.00-2 and Table 4.00-3 provide information on the ESM alarm and shutdown codes.
E-HELP
ESP contains a help file named E-Help that provides fault code troubleshooting information. Navigation in E-Help is done through hypertext links from subject to subject. E-Help is automatically installed when the ESP software is installed.
NOTE: Although E-Help is accessible through ESP, E-Help is its own program and opens in a new window, separate from ESP. To return to ESP and continue monitoring, you need to minimize or close the E-Help window.
USING E-HELP
To access E-Help while using ESP, press the [F1] function key on the keyboard or select
“Help Contents...” from the Help menu. E-Help will open the help file at the ESM E-Help welcome screen (see Figure 4.00-5).
Click on the “16V275GL” button and select either
“Alarm Codes” or “Shutdown Codes” to display a fault code list of that type.
NOTE: E-Help provides fault code troubleshooting for all ESM-equipped Dresser Waukesha engine models.
Pay special attention as you navigate E-Help that you are diagnosing for the correct engine model.
Figure 4.00-5. E-Help Welcome Screen
E-Help can also be accessed and opened to a specific alarm or shutdown code through the fault log on the [F10] Status Panel.
To open E-Help to a specific fault code, view the Fault Log by clicking the “View Faults” button on the [F10] Status Panel. Then double-click on the fault description. E-Help will open to the specific fault’s trou-bleshooting procedure.
NOTE: Once open, the Fault Log does not refresh itself. If the Fault Log remains open, you must occasionally update or refresh the log by clicking the
“Refresh” button.
Figure 4.00-6. E-Help Troubleshooting Information for ALM211
E-HELP WINDOW DESCRIPTION
The E-Help window is divided into two panes. The left pane is the navigation pane; the right pane is the document pane (see Figure 4.00-7). Above the panes is the command bar.
Using the Command Bar
The command bar has four buttons: “Hide/Show” ton, “Back” button, “Forward” button, and “Print” but-ton.
• “Hide/Show” button: You can hide the navigation pane if desired. When the navigation pane is closed, the document pane can be maximized to the size of the full screen.
•• To hide the navigation pane, click the “Hide” but-ton.
•• To view the navigation pane, click the “Show”
button.
• “Back” and “Forward” buttons: E-Help includes
“Back” and “Forward” buttons for navigating, just like Internet browsing software.
•• To return to the previously viewed topic, click the
“Back” button.
•• To go to the window that was displayed prior to going back, click the “Forward” button.
• “Print” button: To print the information displayed in the document pane, click the “Print” button. You can chose to print the selected topic (as seen in the doc-ument pane), or you can print the selected heading and all subtopics.
1) COMMAND BAR 2) NAVIGATION PANE 3) DOCUMENT PANE
Figure 4.00-7 E-Help Command Bar, Navigation Pane, and Document Pane 2
3 1
Using the Navigation Pane
The navigation pane navigates the user through E-Help. At the top of the navigation pane are three tabs. Clicking these tabs allows you to see a table of contents for E-Help, an index tool, and a glossary of ESM-related terms.
• “Contents” Tab: Click the “Contents” tab to scroll through the table of contents for E-Help. Double-clicking the closed book icons in the contents listing will reveal all relevant topics. Double-clicking on an open book icon will close the contents listing.
• “Index” Tab: Click the “Index” tab to search for topics by using an index of help subjects. The
“Index” tab is similar to an index at the back of a book. Type in a key word to find a word listed in the index. Double-click an index entry to view that entry in the document pane.
• “Glossary” Tab: Click the “Glossary” tab to view a glossary of terms used in the ESM documentation.
Click on a term to view its definition.
Using the Document Pane
Navigating through E-Help is done with links. Links are usually identifiable as underlined and/or blue text.
When you move the cursor over a link, the cursor changes from an arrow into a hand. When clicked, a link will jump you from one topic or window to another topic or window. Some links cause a pop-up window to appear, displaying additional information (see Figure 4.00-8).
Figure 4.00-8. Sample of Pop-Up Window