Symptom Table: BCI

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Perform the self-diagnosis with CONSULT before the symptom diagnosis. Perform the trouble diagnosis if any DTC is detected.

NOTE: Refer to the operation condition of the BCI system. Refer to System Description .

Symptom		Possible cause	Inspection item/Reference
Indicator/warning lamps do not illuminate when ignition switch OFF => ON.	Backup Collision Intervention ON indicator (Green) does not illuminate	Backup Collision Intervention ON indicator lamp signal (CAN) Combination meter ADAS control unit Backup Collision Intervention ON indicator (combination meter)	ADAS control unit Active test "BCI ON INDICATOR". Refer to CONSULT Function (ICC/ADAS) . ADAS control unit Data monitor "BCI WARN LMP". Refer to CONSULT Function (ICC/ADAS) . Combination meter Data monitor "BCI W/L". Refer to CONSULT Function (METER/M&A) .
	All of indicator/warning lamps do not illuminate; Backup Collision Intervention warning lamp Backup Collision Intervention ON indicator Warning systems ON indicator	Power supply and ground circuit of ADAS control unit ADAS control unit Combination meter	Power supply and ground circuit of ADAS control unit. Refer to Diagnosis Procedure .
	Backup Collision Intervention indicator does not turn ON	Harness between side radar and Backup Collision Intervention indicator Side radar LH/RH Backup Collision Intervention indicator	Perform self-diagnosis of side radar. Refer to CONSULT Function (SIDE RADAR LEFT) or CONSULT Function (SIDE RADAR RIGHT) .
	Sonar buzzer is not sounding	Buzzer power supply circuit. Harness between sonar control unit and sonar buzzer Harness between sonar buzzer and ground. Sonar buzzer Sonar control unit	Refer to sonar buzzer for repair Diagnosis Procedure .
Warning buzzer is not sounding		Power supply and ground circuit of ADAS control unit 2 Harness between the ADAS control unit 2 and warning buzzer Warning buzzer ADAS control unit 2	Power supply and ground circuit of ADAS control unit 2. Refer to Diagnosis Procedure . Warning buzzer circuit. Refer to Diagnosis Procedure .