Diagnostic Mode 01 - Read Current System Data
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.
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 "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 - $20 |
| $01: | Monitoring Status Since Erasing DTC Memory |
| $03: | Fuel System Status |
| $04: | Calculated Load Value |
| $05: | Coolant Temperature |
| $06: | Short Term Air Fuel Ratio |
| $07: | Long Term Air Fuel Ratio |
| $0B: | Intake Manifold Pressure |
| $0C: | Engine RPM |
| $0D: | Vehicle Speed |
| $0E: | Ignition Timing Advance For #1 Cylinder |
| $0F: | Intake Air Temperature |
| $11: | Throttle 1, Sensor 1, Throttle Position Absolute |
| $13: | Oxygen Sensor Bank 1 Sensor 1 |
| $15: | Oxygen Sensor Bank 1 Sensor 2 |
| $1C: | OBD Requirements |
| $1F: | Time Since Engine Start |
| $20: | Supported Definition PIDs $21 - $40 |
| $21: | Distance Driven With MIL On |
| $23: | Fuel Rail Pressure |
| $2E: | Commanded Evap Purge |
| $2F: | Tank Level |
| $30: | Warm Up Counts After MIL Erased |
| $31: | Distance Driven After Erasing DTC Memory |
| $33: | Ambient Air Pressure |
| $34: | Heater Current Bank 1 Sensor 1 |
| $3C: | Catalyst Temperature Bank 1 - Sensor 1 |
| $3E: | Catalyst Temperature Bank 1 - Sensor 2 |
| $40: | Supported Definition PIDs $41 - $60 |
| $41: | Monitor Status Current Drive Cycle |
| $42: | Control Module Voltage |
| $43: | Absolute Load Value |
| $44: | Lambda Desired Value |
| $45: | Relative Throttle Valve Position |
| $46: | Ambient Air Temperature |
| $47: | Throttle Valve Position 2 Absolute |
| $49: | Accelerator Pedal Position 1 Absolute |
| $4A: | Accelerator Pedal Position 2 Absolute (Redundant) |
| $4C: | Throttle Value |
| $51: | Fuel Type |
| $56: | Offset Oxygen Sensor Regulation After Catalytic Converter |
| $60: | Supported Definition PIDs $61 - $80 |
| $70: | Boost Pressure Control |
-- Switch the ignition off.