Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Engine control module (ECM) checks the signal from the air temperature sensor (integrated in boost pressure sensor) which is located between the turbocharger and the throttle module.

Note! The boost pressure sensor and air temperature sensor are integrated in the same component, the boost pressure sensor.

The diagnostic trouble code (DTC) is stored if the control module detects that:
- The temperature (measured in the boost pressure sensor) deviates too much from the coolant temperature, outdoor temperature, or air temperature in the mass air flow (MAF) sensor.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on.
- Once per operating cycle, but only when the engine's temperature has dropped by approx 50°C (from operating temperature) since the previous operating cycle.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Substitute value
- The value for the air temperature (measured between the turbo compressor and the throttle) is the same as the value for the air temperature (measured in the mass air flow (MAF) sensor).

Possible source
- Contact resistance in connector.
- Damaged air temperature sensor (integrated in boost pressure sensor).

Fault symptom[s]
- Driving/Poor performance/lacks power/At take off
- Driving/Poor performance/lacks power
- Driving/Hesitates/surges/Unsure when/at all times
- Driving/Hesitates/surges/During acceleration
- Driving/Hesitates/surges/During deceleration
- Driving/Hesitates/surges/At steady speed
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication