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 |
| $04: | Calculated load value |
| $05: | Coolant temperature |
| $0B: | Manifold Absolute Pressure |
| $0C: | Engine RPM |
| $0D: | Vehicle speed |
| $0F: | Intake Air Temperature |
| $10: | Air flow rate |
| $13: | Location of Oxygen Sensor |
| $1C: | OBD Status of vehicle |
| $1F: | Time since engine start |
| $21: | Distance driven with MIL ON |
| $23: | Fuel pressure |
| $24: | Bank 1 Sensor 1 (wide Range O2S) |
| $25: | Bank 1 Sensor 2 (wide Range O2S) |
| $2C: | Commanded EGR Position |
| $2D: | EGR error between Actual and Commanded |
| $2F: | Fuel Level (if used for diagnostics |
| $30: | Warm up counts after MIL erased |
| $31: | Distance driven after erasing DTC memory |
| $33: | Barometric pressure |
| $3C: | Catalyst Temperature Bank 1 Sensor 1 |
| $3D: | Catalyst Temperature Bank 2 Sensor 1 |
| $3E: | Catalyst Temperature Bank 1 Sensor 2 |
| $3F: | Catalyst Temperature Bank 2 Sensor 2 |
| $41: | Monitor status (Diesel) |
| $42: | Engine Control Module system voltage |
| $43: | Absolute Load |
| $45: | Relative Throttle Position |
| $46: | Ambient temperature |
| $49: | Absolute Pedal Position |
| $4A: | Redundant Absolute Pedal Position |
| $4C: | Commanded Throttle Motor Position |
| $4D: | Engine run time while MIL is activated |
| $4F: | External Test Equipment Configuration Information #1 |
| $5D: | Fuel Injection Timing |
| $5E: | Engine Fuel Rate |
| $61: | Driver's demand Engine - Percent Torque |
| $62: | Actual Engine Percent Torque |
| $63: | Engine Reference Torque |
| $67: | Engine Coolant Temperature |
| $69: | Commanded EGR and EGR Error |
-- Switch the ignition off.