Diagnostic Mode 01 - Read Current System Data

Diagnostic Modes 01 - 09

Diagnostic Mode 01 - Read Current System Data

The information provided in Modes 01 through 09 displays the various levels of emission related data that may be monitored, as well as the ability to retrieve and read stored DTC trouble codes, erase stored DTC trouble codes, generate readiness codes, and select the various PIDs and Test-IDs used within the modes to monitor the engine, and emission related component parameters.

• Depending on scan tool and protocol used, the information in diagnostic mode 01 may be referred to by different names such as Test-ID (TID), Hex-ID, Component-ID (CID), or On-Board Diagnostic Monitor Identifier (OBDMID).

Diagnostic Mode 01 makes it possible to access current emissions-related measured values and diagnostic data. The original measured values (no replacement values), input and output data and system status information are displayed using Diagnostic Mode 1.

Conditions

• Coolant temperature must be at least 80° C => PID 05, Coolant temperature.

Work procedure

- Connect diagnostic tester.

- Depending on desired operating condition: switch on ignition or start engine and let run at idle.

- Under address word 33, select "Diagnostic mode 1: Check measured values".

- Select desired measured values "PID XX".

• The specified values for the measuring values can be found under the respective component- and function tests.

• The following list only serves as an overview.

• The measuring values are sorted according to the PID (parameter-identifications).

• Cylinder bank 1 with cylinders 1 through 6 is located at right in direction of travel.

• Cylinder bank 2 with cylinders 7 through 12 is located at left in direction of travel.









- End diagnosis and switch ignition off.