5V Supply

5V Supply

Diagram:

The following sensors are supplied with 5 V from control module pins 69 and 46. The two 5 V supplies are internally coupled to each other in the throttle body.
^ Manifold absolute pressure sensor
^ Charge air absolute pressure sensor
^ Differential pressure sensor, tank
^ Pedal position sensors
^ Throttle position sensor

Diagnostics
A short circuit on the 5 V supply will put the throttle in limp-home mode and can be caused by a fault in the wiring harness or a sensor supplied with 5 V. As the two 5 V supplies are internally coupled in the throttle housing, no symptoms will appear if there is a break in just one of them.