User's Manual
Table Of Contents
- 17 MARS-3102 User Manual_0904
- 17 MARS-3102 User Manual_0731
- Safety Information
- Contents
- Using This Manual
- Introduction
- Getting Started
- Navigation
- Scanner Operations
- OBD Direct Operations
- Component Test Operations
- Scope Multimeter Operations
- Ask-a-Tech Operations
- Information Operations
- Vehicle History Operations
- Data Manager Operations
- Help Operations
- System Settings Operations
- Maintenance
- Software License Agreement, North America
- Index
- 文件2
- 17 MARS-3102 User Manual_0731
- RF Exposure Information (SAR) CCS
53
OBD Direct Operations OBD Health Check
Figure 6-2 Sample OBD Health Check menu
6.1.1 Global OBD II Code Check
This option displays any stored emission related generic DTCs reported by the ECM. Selecting
opens a submenu with two choices: Codes and Pending Codes.
Select an option to display the code list. Refer to
Codes Menu on page 36 and the Global OBD
Vehicle Communication Software Manual for additional information.
Codes
Codes displays a list of current emission related DTCs. OBD-II/EOBD Codes have a priority
according to their emission severity, with higher priority codes overwriting lower priority codes.
The priority of the code determines the illumination of the MIL and the code erase procedure.
Manufacturers rank codes differently, so expect to see differences between makes.
Pending Codes
The purpose of this service is to enable the scan tool to obtain “pending” or maturing diagnostic
trouble codes. These are codes whose setting conditions were met during the last drive cycle, but
need to be met on two or more consecutive drive cycles before the DTC actually sets.
The intended use of this service is to assist the service technician after a vehicle repair and after
clearing diagnostic information, by reporting test results after a single driving cycle.
• If a test failed during the driving cycle, the DTC associated with that test is reported. If the
pending fault does not occur again within 40 to 80 warm-up cycles, the fault is automatically
cleared from memory.
• Test results reported by this service do not necessarily indicate a faulty component or system.
If test results indicate another failure after additional driving, then a DTC is set to indicate a
faulty component or system, and the MIL is illuminated.