2C39

2C39 - P0133

Information saved in
DME

Fault code
2C39 - P0133

Fault text
Oxygen sensor before catalytic converter, dynamics

Fault description
O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)

Condition for fault identification
Test condition:
Quotient of actual lambda amplitude to specified value
under forced activation is less than 0.4 (=40 %)
Terminal condition: Engine running
Voltage condition:
battery voltage<11V oder Ubatt > 16 volts

Condition for fault memory entry
Fault monitoring criterion must remain present over 1 sec.

Action in service
1. Replace LSU;
2. Repair leak in exhaust system

Fault effect and breakdown warning


Driver information
Warning light:
MIL on (in 2nd driving cycle);

Service instruction
none