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
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 Audio and Visual System.
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PROCEDURE
| 1. | CHECK DTC |
(a) Clear the DTCs.
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(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. |
|
(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.
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(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:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use these procedures to troubleshoot the smart access system with push-button start (for start function).
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshoo
Relay
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. INSPECT FRONT WIPER DEICER RELAY (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 3 - 5 Auxiliary battery voltage is not applied betw
