Lexus ES: 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) |
|
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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-
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.
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 CodesOK:
No DTCs are output.
| OK |  | USE SIMULATION METHOD TO CHECK |
|
| 2. | CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - RADIO RECEIVER ASSEMBLY) |
| (a) Disconnect the G113 multi-display assembly connector. |
|
(b) Disconnect the G101 radio receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| G101-2 (GVIF+) - G113-1 (GVIF+) | Always | Below 1 Ω |
| G101-1 (GVIF-) - G113-2 (GVIF-) | Always | Below 1 Ω |
| G101-3 (GND) - G113-3 (GND) | Always | Below 1 Ω |
| G101-2 (GVIF+) or G113-1 (GVIF+) - Body ground | Always | 10 kΩ or higher |
| G101-1 (GVIF-) or G113-2 (GVIF-) - Body ground | Always | 10 kΩ or higher |
| G101-3 (GND) or G113-3 (GND) - 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.
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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 CodesOK:
No DTCs are output.
| OK | | END (MULTI-DISPLAY ASSEMBLY IS DEFECTIVE) |
| NG | | REPLACE RADIO RECEIVER ASSEMBLY |
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