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 |
|---|---|
| $01: | Monitoring status since erasing DTC memory |
| $03: | Status of fuel system bank 1 and 2 |
| $04: | Calculated load value |
| $05: | Coolant temperature |
| $06: | Short term fuel trim bank 1 |
| $07: | Long term fuel trim bank 1 |
| $0B: | Intake manifold absolute pressure (MAP) |
| $0C: | Engine RPM |
| $0D: | Vehicle speed sensor |
| $0E: | Ignition timing advance for # 1 cylinder |
| $0F: | Intake air temperature |
| $11: | Absolute throttle position |
| $13: | Oxygen Sensor Bank 1 Sensor 1 |
| $15: | Oxygen Sensor Bank 1 Sensor 2 |
| $1C: | OBD requirements to engine certification |
| $1F: | Time since engine start |
| $21: | Distance driven with MIL ON |
| $2E: | Commanded evap purge |
| $30: | Warm up counts after DTC erased |
| $31: | Distance driven after erasing DTC memory |
| $33: | Barometric pressure |
| $34: | Heater current Bank 1 Sensor 1 |
| $3C: | Calculated catalyst temperature |
| $41: | Monitor status current drive 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: | 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 |
-- Switch the ignition OFF.