Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: GVIF Disconnected (from EMV/MM Integrated Device to Multi Display) (B1575)

DESCRIPTION

The radio receiver assembly and multi-display assembly are connected via video signal (digital) lines.

This DTC is stored when a video signal (digital) line is disconnected.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B1575	GVIF Disconnected (from EMV/MM Integrated Device to Multi Display)	GVIF disconnected (from radio receiver assembly to multi-display assembly)	Harness or connector (GVIF cable) Multi-display assembly Radio receiver assembly

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

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PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Turn the engine switch off.

(c) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.	CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - RADIO RECEIVER ASSEMBLY)

(a) Disconnect the J165 multi-display assembly connector.

*a Front view of wire harness connector (to Radio Receiver Assembly) *b Front view of wire harness connector (to Multi-display Assembly)

(b) Disconnect the J166 radio receiver assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
J166-2 (GVI+) - J165-1 (GV+)	Always	Below 1 Ω
J166-1 (GVI-) - J165-2 (GV-)	Always	Below 1 Ω
J166-3 (GVG1) - J165-3 (GVG)	Always	Below 1 Ω
J166-2 (GVI+) or J165-1 (GV+) - Body ground	Always	10 kΩ or higher
J166-1 (GVI-) or J165-2 (GV-) - Body ground	Always	10 kΩ or higher
J166-3 (GVG1) or J165-3 (GVG) - Body ground	Always	10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.	CHECK MULTI-DISPLAY ASSEMBLY

(a) Replace the multi-display assembly with a new or known good one.

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(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(c) Turn the engine switch off.

(d) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END (MULTI-DISPLAY ASSEMBLY IS DEFECTIVE)

NG

REPLACE RADIO RECEIVER ASSEMBLY