IVMS Communication Diagnosis

IVMS communication diagnosis consists of the communication diagnosis, sleep diagnosis, and inactive communication diagnosis between BCM and each local unit (LCU), and display the results on the CONSULT-II screen.
NOTE: Sleep is a power saving function when a vehicle is stationary (all BCM related electrical equipment: OFF, and the timer: OFF).

The function also stores the communication malfunction records and inactive communication records, and displays the data on the CONSULT-II screen (Malfunction record diagnosis)

MALFUNCTION DESCRIPTION CHART

Malfunction description

CONSULT-II display item

Description

Communication malfunction

COMM DATA

Communicating with each LCU is judged sound when the communication is normally completed and the transmitted data and received data are identically the same. In other cases, it is judged malfunctioning. If the communication is inactive, no diagnosis result is displayed.

Inactive communication

NO RESPONSE

Communicating with each LCU is judged sound when at least one time communication is normally completed within three trials. In other cases, it is judged malfunctioning.

Sleep malfunction

SLEEP

Make sure that each LCU enters sleep mode.

Communication malfunction⁽¹⁾

PAST COMM DATA

The records when communication signal malfunctions were continuously detected while the communication was normal are displayed. Or the records when a malfunction is detected during the past sleep mode are displayed.

Inactive communication⁽¹⁾

PAST NO RESPONSE

The records when inactive communications were continuously detected while the communication was normal are displayed.

⁽¹⁾	malfunctioning item record