Operation CHARM: Car repair manuals for everyone.

Diagnostic Trouble Code (DTC) Information






Diagnostic trouble code (DTC) information ECM-150A

Condition




- driving with engine coolant temperature (ECT) over 80 °C (176°F) (warm engine)
- lambda-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
None.

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.

Fault symptom[s]
None.