|
| |
TM 9-2320-360-20-3
Section 1
HOW TO USE THIS BOOK
1.
Section 2 (Basic Knowledge Required) and Section 3 (Testing the DDEC III System) should be read and understood com-
pletely.
2.
If basic mechanical checks have been made, no trouble was found, and the problem is now believed to be in the
DDEC III System, turn to Section 4 - Troubleshooting Charts. Always start with the first Chart (labeled START) on Page
H-25. if a Diagnostic Data Reader (DDR) is not available, the chart labeled CEL (Check Engine Light) can be used.
3.
Use the charts to pinpoint the problem and perform repairs. The charts are in a three-column format. The first column lists
the test steps to perform and in what sequence to perform them. The second column gives the list of possible results you
may obtain, based on the steps performed. The third column indicates what to do next, based on your results.
4.
The charts will always instruct you to clear the codes after all repair wok is done, and confirm the repair (typically by run-
ning the engine and checking if the codes and/or symptoms have returned).
H-1
|
