VIDEO

Informace

Mazda

Mazda U0167

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

Mazda U0167

Basic error definition

5-Volt Reference 1 Circuit High Voltage

Cause of DTC

Key on or engine running; and the ECM detected the 5v Reference circuit was out of tolerance for 10 seconds. The 5v VREF 1 circuit from the ECM is used to provide power to the The Fuel Tank Pressure (FTP) sensor. The air conditioning (A C) refrigerant pressure sensorThe Accelerator Pedal Position (APP) sensor 1. The exhaust Camshaft Position (CMP) sensor. The intake CMP sensor. The Throttle Position (TP) sensor 2. The Intake Manifold Tuning Valve (IMTV) sensorThe ECM detects a voltage out of range condition on the 5-volt reference 1 or 2 buss for more than 0.5 second.