MasterTuning Fault code dictionary (DTC)

P20C7 — G3/12 (left O2 sensor,after CAT,cylinder 10-12),no special condition change

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningG3/12 (left O2 sensor,after CAT,cylinder 10-12),no special condition change.
FamilyPowertrain (P)

Frequently asked questions

What does code P20C7 mean?

G3/12 (left O2 sensor,after CAT,cylinder 10-12),no special condition change. G3/12 (left O2 sensor,after CAT,cylinder 10-12),no special condition change.

Can I keep driving with code P20C7 active?

With caution: limp mode possible, have it checked soon

How do you fix code P20C7?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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