DESCRIPTION
The headlight leveling ECU assembly receives signals indicating the height of the vehicle from the rear height control sensor sub-assembly RH.
DTC No. |
DTC Detecting Condition |
Trouble Area |
---|---|---|
B241A |
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If either of the following is performed, initialization of the headlight leveling
ECU assembly is necessary (See page ).
PROCEDURE
1. |
CHECK FOR DTC |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
OK:
DTC B241A is not output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK |
|
2. |
READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / HL Auto Leveling / Data List.
(e) Read the display on the Techstream.
HL Auto Leveling
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Height Sens Pw Supply Val |
Rear height control sensor power supply value / 0.00 to 5.00 V |
Approx. 5 V |
- |
Rr Height Sens Signal Val |
Rear height control sensor signal value / 0.00 to 5.00 V |
Approx. 2.5 V (When the vehicle is level) |
Value changes according to vehicle height |
OK:
Normal conditions listed above are displayed.
OK | ![]() |
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY |
|
3. |
INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH |
(a) Remove the rear height control sensor sub-assembly RH (See page
).
(b) Inspect the rear height control sensor sub-assembly RH (See page
).
NG | ![]() |
REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH |
|
4. |
CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING ECU ASSEMBLY - REAR HEIGHT CONTROL SENSOR RH) |
(a) Disconnect the A40 headlight leveling ECU assembly connector.
(b) Disconnect the N1 rear height control sensor sub-assembly RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A40-19 (SHRL) - N1-2 (SHRR) |
Always |
Below 1 Ω |
A40-19 (SHRL) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Back Camera Disconnected (C1622)
DESCRIPTION
This DTC is stored if the navigation receiver assembly*1 or radio and display
receiver assembly*2 judges that the signals or signal lines between the navigation
receiver assembly*1 or radio and display receiver assembly*2, and the rear televis ...
Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT TAILLIGHT RELAY (TAIL)
(a) Remove the taillight relay from the main body ECU (driver side junction
block assembly).
(b) Measur ...
Operation Check
OPERATION CHECK
1. NOTICE WHEN CHECKING THE FOLLOWING
(a) Power door lock/unlock function:
This wireless door lock control function operates only when the following 3 conditions
are met:
(1) There is no key in the ignition key cylinder.
(2) All doors ar ...