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.
Test requirement
- Coolant temperature at least 80 °C.
Procedure
-- Connect the scan tool.
-- Start the engine and run at idle.
-- Select "Diagnostic Mode 1: Obtain data.".
-- From the following table, select the desired the "PID" that is to be monitored, e.g. "PID $05 Coolant temperature".
The current values of the component or system that is being monitored will be displayed on the scan tool screen.
| PID | Description |
|---|---|
| 01: | Monitor status since DTC cleared |
| 03: | Fuel system 1 (Bank 1), Fuel system 2 (Bank 2) |
| 04: | Calculated load value |
| 05: | Coolant temperature |
| 06: | Short term fuel trim bank 1 |
| 07: | Long term fuel trim Bank 1 |
| 08: | Short term fuel trim Bank 2 |
| 09: | Long term fuel trim Bank 2 |
| 0C: | Engine RPM |
| 0D: | Vehicle speed sensor |
| 0E: | Ignition timing advance for # 1 cylinder |
| 0F: | Intake air temperature |
| 10: | Mass airflow sensor |
| 11: | Absolute throttle position |
| 13: | Location of oxygen sensors |
| 15: | Intake air temperature |
| 19: | Location of oxygen sensor monitoring (constant oxygen sensors) |
| 1C: | OBD certification requirements |
| 1F: | Time since engine start |
| 21: | Distance traveled with MIL active |
| 23: | Fuel rail pressure |
| 2E: | Commanded EVAP purge |
| 30: | Number of warm ups since DTC cleared |
| 31: | Distance traveled since DTC cleared |
| 33: | BARO pressure |
| 34: | Oxygen sensor current bank 1 sensor 1 |
| 38: | Oxygen sensor current bank 2 sensor 1 |
| 3C: | Catalyst temperature bank 1 sensor 1 |
| 3D: | Catalyst temperature bank 2 sensor 1 |
| 41: | Monitor status this driving cycle |
| 42: | Control module voltage |
| 43: | Absolute load value |
| 44: | Fuel / air commanded equivalence ratio |
| 45: | Relative throttle position |
| 46: | Ambient air temperature |
| 47: | Absolute throttle position B |
| 49: | Accelerator pedal position D |
| 4A: | Accelerator pedal position E |
| 4C: | Commanded throttle actuator control |
| 56: | Long term secondary O2 sensor fuel trim bank 1 |
| 58: | Long term secondary O2 sensor fuel trim bank 2 |
-- Switch the ignition OFF.