VIDEO

Informace

Chrysler

Chrysler P0073

See the basic definition of a diagnostic error. This will help you to clarify the main causes of the fault code. You will understand the program of the control unit
Basic DTC analysis according to OBD2 protocol standard.

OBD2 or On-Board Diagnostics displays messages for basic group styles. More comprehensible code composition has been standard since 2000. The DTC code consists of five characters and its composition will be shown in this video

Insight into programming

The basic unit for the operation of any computer is the bit. Logic 0 and 1 are expressed by a single bit. Diagnostics The error code is composed of 16 bits. The first two bits define one of the four basic circuits. The video will show you a comprehensive overview of the composition of the error report

A diagnostically understandable description of the Diagnostic Trouble Code

Chrysler P0073

Basic error definition

AMBIENT AIR TEMPERATURE SENSOR CIRCUIT HIGH

Cause of DTC

The Ambient Air Temperature (AAT) Sensor reading is a bussed message from the Totally Integrated Power Module (TIPM) to the Powertrain Control Module (PCM). The AAT Sensor is a variable resistor that functions as a typical sensor. The TIPM supplies a 5 volt reference and a ground to the sensors low reference signal circuit. When the ambient air temperature is low, the sensor resistance is high. When the ambient air temperature is high, the sensor resistance is low.