Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: GVIF Disconnected (from Extension Module to H/U) (B153A)
DESCRIPTION
The radio receiver assembly and navigation ECU 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 |
|---|---|---|---|
| B153A | GVIF Disconnected (from Extension Module to H/U) | GVIF disconnected (from navigation ECU to 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 Audio and Visual System.
Click here .gif)
PROCEDURE
| 1. | CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs(b) Turn the engine switch off.
(c) Turn the engine switch on (IG).
(d) Press the "MAP" switch and check for DTCs.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
| OK |  | USE SIMULATION METHOD TO CHECK |
|
| 2. | CHECK NO. 1 NAVIGATION WIRE (RADIO RECEIVER ASSEMBLY - NAVIGATION ECU) |
| (a) Disconnect the z31 radio receiver assembly connector. |
|
(b) Disconnect the z32 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| z31-1 (GV2-) - z32-1 (GVO-) | Always | Below 1 Ω |
| z31-2 (GV2+) - z32-2 (GVO+) | Always | Below 1 Ω |
| z31-3 (GVG2) - z32-3 (GVG1) | Always | Below 1 Ω |
| NG | | REPLACE NO. 1 NAVIGATION WIRE |
|
| 3. | REPLACE NAVIGATION ECU |
(a) Replace the Navigation ECU with a new or known good one.
Click here
|
| 4. | CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs(b) Turn the engine switch off.
(c) Turn the engine switch on (IG).
(d) Press the "MAP" switch and check for DTCs.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
| OK | | END (NAVIGATION ECU IS DEFECTIVE) |
| NG | | REPLACE RADIO RECEIVER ASSEMBLY |
NTSC Disconnected (from Park Assist/Monitoring ECU) (B1535,C1622)
DESCRIPTION These DTCs are stored if the radio receiver assembly judges that the signals or signal lines between the rear television camera assembly and the multi-display assembly are not normal as a ...
Extension Module Disconnected 2 (B1543)
DESCRIPTION If the radio receiver assembly cannot detect the navigation ECU for a certain period of time (90 seconds) after the engine switch is turned on (ACC) and the radio receiver assembly confirm ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Steering Pad: Components
COMPONENTS ILLUSTRATION *1 HORN BUTTON ASSEMBLY *2 LOWER NO. 2 STEERING WHEEL COVER *3 LOWER NO. 3 STEERING WHEEL COVER - - ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Dynamic Torque Control Awd System: Control Module Communication Bus Off (U0073)
DESCRIPTION The 4WD ECU assembly stores this DTC when a communication malfunction is detected. DTC No. Detection Item DTC Detection Condition Trouble Area U0073 Control Module Communication Bus Off
When the following continues for 5 seconds or more:
Signals from the 4WD ECU as ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0165