LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volkswagen >> 2004 >> R32 >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (2.8L - Fuel Injection Ignition, Engine Code(S): AFP (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> Readiness code >> Readiness code (function 15), displaying >> Explanation of 8 digit readiness code
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Explanation of 8 digit readiness code

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 Volkswagen Jetta, 2002 Volkswagen GTI, 2001 Volkswagen Jetta, 2001 Volkswagen GTI, and 2000 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
Readiness code is generated only when all display values = 0
1 2 3 4 5 6 7 8 Diagnostic function
              0 Three Way Catalytic Converter (TWC)
            0   TWC heating (not applicable/always "0" )
          0     EVAP system and fuel tank leak detection test
        0       Secondary Air Injection (AIR) system
      0         Air conditioning system (currently no diagnostic/always "0" )
    0           Oxygen Sensor O2S control
  0             Oxygen Sensor (HO2S) heating
0               Exhaust Gas Recirculation (EGR) system (not applicable/always "0" )