VIDEO

Informace

Hyundai

Hyundai P1688

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

Hyundai P1688

Basic error definition

RKE Fob 4 - Signal Amplitude Minimum

Cause of DTC

The RF Hub Module uses a transponder mode to query the Frequency Operated Button with Integrated Key (FOBIK) for low battery state in keyed ignition systems. This is done after the FOBIK authentication is complete so that it does not impact the starting system timing. The Low Battery condition determination is the responsibility of the FOBIK. The RF Hub receives FOBIK Battery Low information by two methods: 1) If any FOBIK has a low battery condition during authentication for the Keyless-Go feature. 2) If any FOBIK reports a low battery condition within its Remote Keyless Entry (RKE) command to the RFHUB.