2C4B - P3012 (DME)

2C4B - P3012

Information saved in
DME

Fault code
2C4B - P3012

Fault text
DME2: Control unit, internal fault, bank 2: oxygen-sensor
module

Fault description
Control module, internal fault: Oxygen sensor module

Condition for fault identification
Test condition:
Monitor for voltage adaptation value electr. calibration of
CJ125 IC
Calibration runs after engine start and in idle phases
Terminal condition: Terminal 15 ON
Voltage condition:
battery voltage<11V oder Ubatt > 16 volts

Condition for fault memory entry
Fault criterion:
Calibration adaptation value > 0.1 volts
Fault entry after 10 sec.

Action in service
Check plug, replace sensor

Fault effect and breakdown warning
none

Driver information
Warning light:
MIL on in 2nd DC

Service instruction
none