P2231

DTC P2231 O2 Sensor Signal Circuit Shorted to Heater Circuit (Bank1, Sensor1)

DESCRIPTION
In the case of the immobilizer system, the ECM carries out a check out the ignition key using a special encoding algorithm, which is programmed into the transponder as well as the ECM simultaneously. Only if the results are equal the engine can be started. The data of all the transponders, which are valid for the vehicle, are stored in the ECM.

DTC Detecting Condition:

Step 1 - 2:

Step 3:

INSPECTION PROCEDURES