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 | Component or System |
|---|---|
| $00: | supported definition PIDs $01 thru $20 |
| $01: | Monitoring status since erasing DTC memory |
| $03: | Condition of fuel system |
| $04: | Calculated load value |
| $05: | Coolant temperature |
| $06: | Short term air fuel ratio bank 1 |
| $07: | Long term air fuel ratio bank 1 |
| $08: | Short term air fuel ratio bank 2 |
| $09: | Long term air fuel ratio bank 2 |
| $0C: | engine speed |
| $0D: | Vehicle speed |
| $0E: | Ignition timing advance for #1 cylinder |
| $0F: | Intake air temperature |
| $10: | Air flow rate from mass air flow sensor |
| $11: | Absolute throttle position |
| $12: | Secondary Air Injection |
| $13: | Location of the oxygen sensors |
| $15: | Oxygen sensor LSF sensor voltage (Bank 1, Sensor 2) |
| $19: | Oxygen sensor LSF sensor voltage (Bank 2, Sensor 2) |
| $1C: | OBD requirements |
| $1F: | Time since engine start |
| $20: | supported PIDs $21 thru $40 |
| $23: | Fuel rail pressure |
| $2E: | Commanded evap purge |
| $33: | Ambient pressure |
| $34: | Oxygen sensor actual value (Bank 1 - Sensor 1) |
| $38: | Oxygen sensor actual value (Bank 2 - Sensor 1) |
| $3C: | Catalytic converter temp. (Bank 1 - Sensor 1) |
| $3D: | Catalytic converter temp. (Bank 2 - Sensor 1) |
| $40: | supported definition PIDs 41 thru 60 |
| $41: | Monitor status in this operating cycle |
| $42: | Control module voltage |
| $43: | Absolute load value |
| $44: | Specified value of oxygen sensor signal |
| $45: | Relative throttle valve position |
| $46: | Ambient temperature |
| $47: | Throttle valve position 2 absolute |
| $49: | Driving pedal position 1 absolutely |
| $4A: | Driving pedal position 2 absolutely |
| $4C: | Butterfly valve target position |
| $56: | Lambda actual value Bank 1 - sensor 1 |
| $58: | Lambda actual value Bank 2 - sensor 1 |
| $67: | Coolant temperature 1 coolant temperature 2 |
-- Switch the ignition off.