VIDEO

Informace

Acura

Acura P2138

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

Acura P2138

Basic error definition

APP Sensor A B or 1 2 (Throttle Position (TP) Sensor D E) Incorrect Voltage Correlation (Includes Hybrid Models)

Cause of DTC

With the ignition ON (II) one of these conditions must be met for at least 300 milliseconds: (1) APP sensor B voltage exceeds the range from 0 V or less to 0.37 V or more when the APP sensor A voltage is 0.37 V. (2) APP sensor B voltage exceeds the range from 2.31 V or less to 2.69 V or more when the APP sensor A voltage is 5 V. The execution time is continuous and DTCs P2122, P2123, P2127, P2128 are not active. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.