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 01".
-- 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 PIDs $01-$20 |
| $01: | Monitoring status since erasing DTC memory |
| $03: | Fuel system status |
| $04: | Calculated load value |
| $05: | Coolant temperature |
| $06: | Lambda integrator Bank 1 |
| $07: | Lambda value adaptation Bank 1 |
| $0B: | Manifold Absolute Pressure |
| $0C: | Engine RPM |
| $0D: | Vehicle speed |
| $0E: | Firing angle cylinder 1 |
| $0F: | Intake Air Temperature |
| $11: | Throttle valve 1, sensor 1, throttle position absolutely |
| $12: | Secondary air status |
| $13: | Location of Oxygen Sensor |
| $15: | LSF / HEGO sensor values (jump probes) |
| $1C: | OBD Status of vehicle |
| $1F: | Time since engine start |
| $20: | Supported PIDs $21-$40 |
| $21: | Distance driven with MIL ON |
| $23: | Fuel pressure |
| $2E: | Tank vent valve activation |
| $2F: | Fuel Level (if used for diagnostics) |
| $30: | Number of warm up cycles since Fault Memory cleared |
| $31: | Distance driven after Fault Memory cleared |
| $33: | Barometric pressure |
| $34: | LSU/ UEGO sensor values (Wideband sensors) |
| $3C: | Catalyst Temperature Bank 1 Sensor 1 |
| $40: | Supported PIDs $41-$60 |
| $41: | Monitor status (Diesel) |
| $42: | Engine Control Module system voltage |
| $43: | Absolute Load |
| $44: | Lambda specified value |
| $45: | Relative Throttle Position |
| $46: | Ambient temperature |
| $47: | Throttle valve 1, Sensor 2, Throttle valve position absolute |
| $49: | Absolute Pedal Position |
| $4A: | Redundant Absolute Pedal Position |
| $4C: | Commanded Throttle Motor Position |
| $51: | Fuel Type |
| $56: | Offset oxygen sensor regulation after catalytic converter, Bank 1 |
| $60: | Supported PIDs $61-$80 |
| $70: | Boost Pressure Control |
-- Switch the ignition off.