Lexus NX: Height Control Sensor Data Out of Range When Initializing (B2452)
DESCRIPTION
The headlight ECU sub-assembly LH stores this DTC if the value from the rear height control sensor sub-assembly LH is out of range when performing initialization of the headlight ECU sub-assembly LH, such as when the vehicle is not level or jacked up.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2452 | Height Control Sensor Data Out of Range When Initializing |
|
|
WIRING DIAGRAM
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CAUTION / NOTICE / HINT
NOTICE:
-
If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.
Click here
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After the rear height control sensor sub-assembly LH is replaced or removed and installed, initialization is necessary.
Click here
PROCEDURE
| 1. | INITIALIZATION HEADLIGHT ECU SUB-ASSEMBLY LH |
(a) Perform initialization of the headlight ECU sub-assembly LH.
Click here
|
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| 2. | CHECK FOR DTC |
(a) Clear the DTCs.
Click here
(b) Turn the power switch on (IG).
(c) Check for DTCs.
Click here
OK:
DTC B2452 is not output.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
|
| 3. | CHECK REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH |
(a) Check the rear height control sensor sub-assembly LH installation condition.
OK:
Rear height control sensor sub-assembly LH installation condition is normal.
| NG | | INSTALL PARTS CORRECTLY |
|
| 4. | INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH |
(a) Remove the rear height control sensor sub-assembly LH.
Click here
(b) Inspect the rear height control sensor sub-assembly LH.
Click here
| NG | | REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH |
|
| 5. | CHECK HARNESS AND CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY LH - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH) |
(a) Disconnect the A19 headlight ECU sub-assembly LH connector.
(b) Disconnect the R1 rear height control sensor sub-assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A19-16 (SBR) - R1-3 (SHB) | Always | Below 1 Ω |
| A19-17 (SHRL) - R1-2 (SHRR) | Always | Below 1 Ω |
| A19-15 (SGR) - R1-1 (SHG) | Always | Below 1 Ω |
| A19-16 (SBR) or R1-3 (SHB) - Body ground | Always | 10 kΩ or higher |
| A19-17 (SHRL) or R1-2 (SHRR) - Body ground | Always | 10 kΩ or higher |
| A19-15 (SGR) or R1-1 (SHG) - Body ground | Always | 10 kΩ or higher |
| OK | | REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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Compass
The compass on the inside rear
view mirror indicates the direction
in which the vehicle is heading.
Operation and displays
To turn the compass on or off, press the
button for more than 3 seconds.
Directions are displayed as follows:
■Conditions unfavorable to correct
operation
The com
For your information
Main Owner's Manual
Please note that this manual applies to
all models and explains all equipment,
including options. Therefore, you may
find some explanations for equipment
not installed on your vehicle.
All specifications provided in this manual
are current at the time of printing.
How
