Diagnostic trouble code (DTC) information ECM-150A

Condition

Fig 1: Identifying Intake Air Temperature (IAT) Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

driving with engine coolant temperature (ECT) over 80 °C (176°F) (warm engine)
λ-active control.

The control module compares values between intake manifold pressure (MAP) sensor and mass air flow (MAF) pressure sensors in (g/RPM). Diagnostic trouble code (DTC) ECM-150A is stored if the control module registers that the deviation is too great.

Substitute Value

Non E.

Possible Source

Upper limit

the intake manifold (MAP) pressure sensor displays more than the mass air flow (MAF) sensor.

Lower limit

The mass air flow (MAF) sensor displays more than intake manifold (MAP) pressure.

This diagnostic trouble code is generated in combination with other trouble codes. Information on the possible root cause is described.

See Information about combined diagnostic trouble codes (DTCs)

Fault symptom[s]

Non E.