VIDEO

Informace

Nissan

Nissan P2128

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

Nissan P2128

Basic error definition

Engine Control Module (ECM). Diagnostic Trouble Code (DTC) Stored In The ECM

Cause of DTC

The throttle position (TP) sensor signal from the engine control module (ECM) is a pulsed signal (between approximately 0 V and battery voltage) with a fixed frequency (approximately 50 Hz). The pulse ratio (% duty) changes as the throttle opens. If the engine control module (ECM) registers a fault in the signal from the throttle position (TP) sensor, the engine control module (ECM) transmits a special throttle position (TP) sensor signal to the DSA control module. This informs the DSA control module that the throttle position (TP) sensor signal to the engine control module (ECM) is faulty. Diagnostic trouble code (DTC) DSA-233 is stored when the DSA control module has received this signal. Note!The diagnostic trouble code (DTC) is only stored as long as the ignition is on the engine is running and the fault is permanent. If the fault in the engine management system disappears (the fault becomes intermittent) the diagnostic trouble code (DTC) in the DSA control module will no longer be stored.