Circuit/System Description
WARNING: This page is about a different variant/trim than selected.
For an overview of the component/system, refer to: Compressor Air Intake Turbocharger System Description
| Circuit | Description |
|---|---|
| Signal - Terminal 1 | The control module input circuit has an internal resistance connected to 0.5 V. |
| Signal - Terminal 2 | The control module input circuit has an internal resistance connected to 2.5 V. |
| Component | Description |
|---|---|
| B193A Charge Air Cooler Air Temperature Sensor - Inlet B193B Charge Air Cooler Air Temperature Sensor - Outlet |
The temperature sensor is a negative temperature coefficient thermistor, a resistor which changes based on temperature. |
| K20 Engine Control Module | The control module contains a microprocessor used to process input data to control outputs. The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly. |
The charge air cooler efficiency is computed as a ratio between the following inputs:
- B9 Ambient Air Temperature Sensor
- B34K Charge Air Cooler Coolant Temperature Sensor - Inlet
- B193A Charge Air Cooler Air Temperature Sensor - Inlet
- B193B Charge Air Cooler Air Temperature Sensor - Outlet
The diagnostic monitors the average temperature reduction ratio of the charge air cooler.