DTC ECM-1100

Condition







Diagnostic trouble code (DTC) ECM-1100 is stored if the control module registers that the sensor circuit has a short-circuit to ground/voltage or if there is an open-circuit in the circuit.

Substitute value
If the mass air flow (MAF) sensor temperature sensor is OK, the value from it is used. Otherwise the value is set at 20 degrees C (68 degrees F).

Possible source

Signal too high:
- open-circuit in signal cable
- short-circuit to supply voltage in the signal cable
- defective outside temperature sensor.

Signal too low:
- short-circuit to ground in the signal cable
- defective outside temperature sensor.

Fault symptom[s]
None.