Diagnostic Trouble Code (DTC) Information

ECM-220F REAR HEATED OXYGEN SENSOR (HO2S)
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION




Condition
After starting the engine and with rear Heated Oxygen Sensor (HO2S) control active the control module continuously checks the 9 adaption areas which must lie within their ranges. These are calculated together and if the control module registers that the total exceeds a fault range Diagnostic Trouble Code (DTC) ECM-220F is stored.

Condition
Rear Heated Oxygen Sensor (HO2S) control is switched off.

Possible source
- Defective rear Heated Oxygen Sensor (HO2S).
- Air leakage.

Condition
None.