Diagnostic Mode 1: Check Measured Values

2004 Audi A6 Quattro Sedan (4B2) V8-4.2L (AWN)SECTION Diagnostic Mode 1: Check Measured Values


Mode 1: Check Measured Values

In this diagnostic mode, all emissions-relevant measured values are displayed.

Test requirement:
- Coolant temperature at least 80 degree C "PID 05: Cooling fluid temperature".

Work procedure
- Connect diagnostic tester. Diagnostic Tester, Connecting
- In diagnostic function "33 - OBD", select "Mode 1: Check measuring values".
- Select the desired measured value according to the PID (Parameter Identification), e.g. "PID 05. Cooling fluid temperature", via the following table.

NOTE:
- Specified values assigned to the measuring values are found in the corresponding component- and function tests.
- Bank 1 = cylinder bank 1 in direction of travel, right; Bank 2 = cylinder bank 2 in direction of travel, left.
- Measuring values of Engine Control Module (ECM) are displayed under "10 - Engine electronics" and measuring values of Transmission Control Module (TCM) are displayed under "1A - Transmission electronics".

PID 1) Display measuring values
01: Monitoring status since erasing DTC memory
03: Condition of the fuel system
04: Calculated load condition value
05: Cooling fluid temperature
06: Short time gasoline-air ratio bank 1
07: Gasoline-air ratio bank 1
08: Short time gasoline-air ratio bank 2
09: Gasoline-air ratio bank 2
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
19: Available oxygen B1 to B2-S1 to S4 (present or not present)
20: Sensor voltage Bank 1 - sensor 1
21: Sensor voltage Bank 1 - sensor 2
24: Sensor voltage Bank 2 - sensor 1
25: Sensor voltage Bank 2 - sensor 2
28: OBD-requirement for which this vehicle is equipped -OBD II

1) PIDs that are not relevant are not listed.

- End diagnosis and switch ignition off.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.