Volkswagen Passat 1995 Official Factory Repair Manual page 1558

Readiness code
Evaluation PID 01: System status-information (right 8-digit number block:)
1 2 3 4 5 6 7 8
0
0
0
0
0
0
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
Meaning if display position = 0
Exhaust gas recirculation OK
not available/always "0"
Oxygen sensor heater OK
Oxygen sensors OK
A/C system OK
not available/always "0"
Secondary Air Injection (AIR) system OK
EVAP canister system (tank ventilation system) OK
0 Catalytic converter heater OK
not available/always "0"
0 Catalytic converter OK
Diagnostic function
If a 1 is displayed instead of a 0 in the 8-digit
number block:
- Generate readiness code
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ST-51
Page ST-52 .
6/12/2004