DME 5.2.2 Diagnosis: Introduction: Structure
The manual is subdivided into several chapters:
- General
- Function description
- Engine specifications
- Tester description
- Tester display
- Component location
- Tools
- Troubleshooting
The chapter "Troubleshooting" is subdivided into several chapters:
- Service Number
The individual fault listings contain a 4-digit service code which coincides with the labor and damage codes in the Suggested Repair Times Catalogue.
Example: 28 73
- Diagnostic Trouble Code (DTC)
A specified 5-digit fault code is listed.
- Fault text
Here the text is shown as it appears in the system tester display.
- Function description
A brief function description of the component or sub-system is shown (example: recognition of misfire).
- Diagnostic conditions
Here the circumstances are described under what conditions the diagnostic routines are run by the DME-Engine Control Module (ECM). It is important, for example, to reach the driving ranges or operating conditions to make the diagnosis possible.
- Fault table
The fault conditions and the fault area are described in a fault table.
- Wiring Diagram
A partial wiring diagram is offered that shows the component or sub-system with the respective wiring to provide a quick overview.
- Diagnostic procedure
In the chapter "Diagnostic procedure", the troubleshooting is systematically described.
If the check points require additional explanations, the check points list a number. Check points with a number are fully explained at the end of the manual.
- Check Points
Full explanations of some Check Points.
Removal and installation procedures are not described in this manual. If such operations are necessary, look for information in the Technical Manual.
Troubleshooting is described for the use of the Porsche System Tester 2 because it offers more functions than a generic scan tool. Troubleshooting and repair are, however, also possible with a generic scan tool.