Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code ECM-16 is stored if the heated oxygen sensor (HO2S) signal cable short-circuits to ground / voltage or if there is an open-circuit in the circuit that the control module has interpreted as a fault.

Substitute value
Fuel trim disabled.

Possible source

Signal too high:
- Short-circuit to supply voltage in the signal cable.
- Faulty heated oxygen sensor (HO2S).

Signal too low:
- Short-circuit to ground in the signal cable.
- Faulty heated oxygen sensor (HO2S).
- Open-circuit in the signal cable.

Fault symptom[s]
- None.