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 |
Engine Speed Signal Error (Test Mode DTC) (C2194/94)
DESCRIPTION
The tire pressure warning ECU receives an engine speed signal from the ECM. This
DTC is stored upon entering signal check mode (test mode), and cleared when an engine
speed signal of 1000 rpm is detected for 3 seconds or more. This DTC is outp ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY
NOTICE:
Do not disassemble the retractor.
(a) Before installing the front seat outer belt assembly, check the ELR.
(1) When the inclination of the retractor is 15° or less, check that the ...
Camshaft Position "A" Actuator Circuit (Bank 1) (P0010)
DESCRIPTION
The Variable Valve Timing (VVT) system adjusts the intake valve timing to improve
driveability. The engine oil pressure turns the VVT controller to adjust the valve
timing.
The camshaft timing oil control valve assembly is a solenoid valve an ...