Lexus NX: Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
NOTICE:
After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.
Waiting Time before Disconnecting Cable from Negative (-) Auxiliary Battery Terminal| System Name | See Procedure |
|---|---|
| Vehicle enrolled in Lexus Enform system or safety connect system | 6 minutes |
| Vehicle not enrolled in Lexus Enform system and safety connect system | 1 minute |
NOTICE:
-
When replacing the radio receiver assembly or navigation ECU, always replace it with a new one.
If a radio receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio receiver assembly or navigation ECU may not operate normally.
-
When performing the following work, the navigation system may restart when turning the power switch on (ACC) (due to radio receiver assembly and navigation ECU certification).
- Repair or replace the negative (-) auxiliary battery terminal due to it being disconnected or depleted.
- The radio receiver assembly or navigation ECU replacement or removal and installation.
- When replacing the DCM (telematics transceiver), make sure to replace it with a new one (w/ Manual [SOS] Switch).
- After replacing the radio receiver assembly, if the "New software is not compatible with the system. Contact your dealer." on-screen message is displayed on the multi-display assembly, update the software of the navigation ECU.
- After replacing the navigation ECU, if the "New software is not compatible with the system. Contact your dealer." on-screen message is displayed on the multi-display assembly, update the software of the radio receiver assembly.
PRECAUTION FOR NAVIGATION SYSTEM
(a) If replacing any of parts, do the settings shown in the table below.
w/ Manual (SOS) Switch| Replacement Part | Necessary Procedure | Link |
|---|---|---|
|
*1: w/ SXM System
*2: for Lexus Enform Remote Compatible Type | ||
| Radio receiver assembly | After replacing the radio receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, radio ID registration is necessary*1 | - |
| Re-install the eOwner's manual | - | |
| DCM (telematics transceiver) | Vehicle contract setting | |
| Code registration*2 | | |
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| Replacement Part | Necessary Procedure | Link |
|---|---|---|
| Radio receiver assembly | Re-install the eOwner's manual | - |
READ NEXT:
Parts Location
PARTS LOCATION ILLUSTRATION *A w/ Parking Assist Monitor System *B w/ Panoramic View Monitor System *1 NO. 2 ENGINE ROOM RELAY BLOCK - DCM FUSE (w/ Manual [SOS] Switch) - ECU-B NO.1 FU
System Diagram
SYSTEM DIAGRAM
System Description
SYSTEM DESCRIPTION NAVIGATION SYSTEM OUTLINE (a) Vehicle position tracking methods It is essential that the navigation system correctly tracks the current vehicle position and displays it on the map.
SEE MORE:
Hybrid Powertrain Control Module (P0A1D-721,P0A1D-722,P0A1D-723,P0A1D-787,P0A1D-818)
DESCRIPTION The hybrid vehicle control ECU monitors its internal operation, it will store a DTC and perform fail-safe control if it detects the following malfunction. If the following DTC is output, replace the hybrid vehicle control ECU. DTC No. Detection Item DTC Detection Condition Troub
Different Diameter Tire Malfunction (C1348)
DESCRIPTION If the hybrid vehicle control ECU receives a signal from the skid control ECU (brake booster with master cylinder assembly) that the AWD system is malfunctioning, the hybrid vehicle control ECU outputs this DTC. DTC No. Detection Item INF Code DTC Detection Condition Trouble A
