Diagnostic Mode 01 - Read Current System Data
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.
Prerequisite
- Coolant temperature must be at least 80 C → PID 5, Coolant temperature.
Procedure
- Connect diagnostic tester → Diagnostic Tester, Connecting .
- Depending on the desired operating condition: switch on ignition
or start engine and let run at idle.
- Under address word 33, select "Diagnostic mode 1: Checking measured values."
- Select the desired measured values "PID XX".
NOTE:
- The specified values for the respective measuring values can be found at 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).
- Bank 1 = Cylinder bank 1, in direction of travel, right
- Bank 2 = Cylinder bank 2, in direction of travel, left
- Measuring values of Engine Control Module (ECM) are displayed under "10 - Engine electronics" and measuring values of Transmission Control Module (TCM) are displayed under "1A - Transmission electronics".
| PID | Display measuring values | 10 - Engine electronics | 1A - Transmission electronics |
|---|---|---|---|
| 01: | Monitoring status since erasing DTC memory | X | X |
| 03: | Condition of fuel system | X | - |
| 04: | Calculated load condition value | X | - |
| 05: | Coolant temperature/transmission oil | X | X |
| 06: | Short time gasoline-air ratio bank 1 | X | - |
| 07: | Gasoline-air ratio bank 1 | X | - |
| 08: | Short term gasoline-air ratio bank 2 | X | - |
| 09: | Gasoline-air ratio bank 2 | X | - |
| 12: | Engine rotations per minute (RPM) | X | X |
| 13: | Vehicle speed | X | X |
| 14: | Valve timing adjustment at 1. cyl. to advance | X | - |
| 15: | Intake air temperature | X | - |
| 16: | Air flow quantity at Mass Air Flow (MAF) sensor | X | - |
| 17: | Throttle valve position (absolute) | X | X |
| 18: | Availability status of secondary air | X | - |
| 19: | Available oxygen B1 to B2S1 to S4 (present or not present) | X | - |
| 20: | Sensor voltage Bank 1 - sensor 1 | X | - |
| 21: | Sensor voltage Bank 1 - sensor 2 | X | - |
| 24: | Sensor voltage Bank 2 - sensor 1 | X | - |
| 25: | Sensor voltage Bank 2 - sensor 2 | X | - |
| 28: | OBD-requirement for which this vehicle is designed - OBD and OBD II | X | X |
| 33: | Distance driving with MIL (catalytic converter monitoring warning lamp) on | X | - |
| 52: | Current value of oxygen sensor signal, bank 1, sensor 1 | X | - |
| 56: | Current value of oxygen sensor signal, bank 2, sensor 1 | X | - |
*PIDs that are not relevant are not listed.
- End diagnosis and switch ignition off.