P0030

2A63 - P0030

Information saved in
DME

Fault code
2A63 - P0030

Fault text
Oxygen sensor heating before catalytic converter, activation

Fault description
Pre-catalyst oxygen sensor heater, activation

Condition for fault identification
Test condition:
Output stage diagnosis
Terminal condition: none
Voltage condition:
none

Condition for fault memory entry
0.5 sec.

Action in service
Check wiring harness between oxygen sensor and DME
Replace oxygen sensor
Replace DME

Fault effect and breakdown warning
It is possible to continue driving. Because the oxygen sensor
cannot be used for closed-loop control the exhaust emissions
will exceed the official limits.
MIL lights up
Higher exhaust emissions
Increased fuel consumption
Surge

Driver information
Warning light:
MIL ON

Service instruction
None