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 |
Short in Front Pretensioner Squib RH Circuit (B1900/73-B1903/73)
DESCRIPTION
The front pretensioner squib RH circuit consists of the center airbag sensor
assembly and front seat outer belt assembly RH.
The center airbag sensor assembly uses this circuit to deploy the seat belt pretensioner
when deployment conditions a ...
Removal
REMOVAL
PROCEDURE
1. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP
2. REMOVE FRONT PILLAR GARNISH
3. REMOVE NO. 2 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY
4. REMOVE FRONT NO. 4 SPEAKER ASSEMBLY (for 13 Speakers)
(a) Remove the 2 ...
Automatic High Beam Mirror (B124A)
DESCRIPTION
The DTC is stored when the main body ECU (driver side junction block assembly)
detects malfunctions in the inner rear view mirror assembly.
DTC No.
DTC Detection Condition
Trouble Area
B124A
...