VIDEO

Informace

BMW

BMW P1677

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

BMW P1677

Basic error definition

Adaptive Cruise Control No Activity Detected

Cause of DTC

Key on after 800ms or engine running for 100ms, the DME detected an electrical malfunction regarding the Adaptive Cruise Control circuit. Check the ACC fuse, the ECU or CAN for fault, measure the resistance on the BUS, check the wiring harness. If this fa