Lexus NX: GVIF Disconnected (from EMV/MM Integrated Device to Multi Display) (B1575)
DESCRIPTION
| 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) |
|
WIRING DIAGRAM
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CAUTION / NOTICE / HINT
NOTICE:
When replacing the radio receiver assembly, always replace it with a new one.
If a radio receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio receiver assembly may not operate normally.
HINT:
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.
Click here
(b) Turn the power switch off.
(c) Recheck for DTCs and check that no DTCs are output.
Click here
OK:
No DTCs are output.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
|
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| 2. | CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - RADIO RECEIVER ASSEMBLY) |
| (a) Disconnect the I165 multi-display assembly connector. |
|
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(b) Disconnect the I162 radio receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I162-2 (GVI+) - I165-1 (GV+) | Always | Below 1 Ω |
| I162-1 (GVI-) - I165-2 (GV-) | Always | Below 1 Ω |
| I162-3 (GVG1) -I165-3 (GVG) | Always | Below 1 Ω |
| I162-2 (GVI+) - Body ground | Always | 10 kΩ or higher |
| I162-1 (GVI-) - Body ground | Always | 10 kΩ or higher |
| I162-3 (GVG1) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | CHECK MULTI-DISPLAY ASSEMBLY |
(a) Replace the multi-display assembly with a new or known good one.
Click here
(b) Clear the DTCs.
Click here
(c) Turn the power switch off.
(d) Recheck for DTCs and check that no DTCs are output.
Click here
OK:
No DTCs are output.
| OK | | END (MULTI-DISPLAY ASSEMBLY IS DEFECTIVE) |
| NG | | REPLACE RADIO RECEIVER ASSEMBLY |
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SEE MORE:
System Description
SYSTEM DESCRIPTION HEADUP DISPLAY SYSTEM DESCRIPTION HINT:
The meter mirror sub-assembly receives signals from the combination meter assembly via the CAN communication line. Information is displayed on the front window based on received signals.
The meter mirror sub-assembly receives navigation
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE If there are no DTCs but the problem still occurs, check the suspected areas for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page. NOTICE: When replacing the skid control ECU (brake booster with master cylinder assembl
