Diagnostic Mode 1: Check Measured Values

Diagnostic Mode 1: Check Measured Values

Requirement
- Coolant temperature must be at least 80°C PID 5, Coolant temperature.

Procedure
- Connect diagnostic tester. [1][2]Reading and Clearing Diagnostic Trouble Codes
- Depending on the desired operating condition: switch on ignition or Start engine and let run at idle.
- Under address word 33, select "Diagnostic mode 1: Checking measured values."
- Select the desired measured values "PID XX".

NOTE:
- The specified values for the respective measuring values can be found at the respective component and function tests.
- The following list only serves as an overview.
- The measuring values are sorted according to the PID (parameter-identifications).

PID Display measuring values
01: Monitoring status since erasing DTC memory
02: DTC
- Only for vehicles with engine code AEG
03: Condition of the fuel system
04: Calculated load condition value
05: Coolant temperature
06: Short time gasoline-air ratio bank 1
07: Gasoline-air ratio bank 1
12: Engine rotations per minute (RPM)
13: Vehicle speed
14: Valve timing adjustment at 1. cyl. to "advance"
15: Intake Air Temperature (IAT)
16: Air flow quantity at Mass Air Flow (MAF) sensor
17: Throttle valve position (absolute)
18: Availability status of secondary air
21: Oxygen Sensor Voltage, Bank 1 - sensor 2
28: OBD requirement for which this vehicle is designed

Vehicles with engine code AEG

If DTCs are displayed in "PID 02":
- Repair stored malfunctions according to DTC table: Testing and Inspection

Continuation for all vehicles
- End diagnosis and switch ignition off.