Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-2210

Condition




The engine control module (ECM) checks whether there is a short-circuit to ground or supply voltage in the preheating circuit heated oxygen sensor (HO2S). It also checks for an open-circuit or whether the heating resistor is faulty. The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers any of these.
The diagnostic trouble code (DTC) can be diagnosed at ignition on and if the battery voltage is in the range 10-16 V.

Substitute value
- Rear heated oxygen sensor (HO2S) preheating shut off.

Possible source

Signal too high
- Short-circuit to supply voltage in the power cable
- Damaged rear heated oxygen sensor (HO2S).

Signal too low
- Open-circuit in the power cable
- Short-circuit to ground in the power cable
- Damaged rear heated oxygen sensor (HO2S).

Faulty signal
- Contact resistance and/or oxidation in the terminals
- Damaged rear heated oxygen sensor (HO2S).

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.