Lexus NX: Steering Position Sensor Malfunction (B2414)
DESCRIPTION
The headlight ECU sub-assembly LH receives steering angle signals from the steering sensor.
The headlight ECU sub-assembly LH outputs DTC B2414.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2414 | Steering Position Sensor Malfunction | Steering angle sensor malfunction |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this DTC.
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After the headlight ECU sub-assembly LH is replaced, vehicle information registration and initialization are necessary.
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The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.
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PROCEDURE
| 1. | CHECK FOR DTC |
(a) Clear the DTCs.
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(b) Check for DTCs.
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OK:
DTC B2414 output does not occur.
| OK | .gif) | USE SIMULATION METHOD TO CHECK |
|
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| 2. | REPLACE STEERING SENSOR |
(a) Temporarily replace the steering sensor with a new or normally functioning one.
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|
| 3. | CHECK FOR DTC |
(a) Clear the DTCs.
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(b) Check for DTCs.
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OK:
DTC B2414 output does not occur.
| OK | | END (STEERING SENSOR WAS DEFECTIVE) |
| NG | | REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
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Right Headlight ECU Malfunction (B242C,B242D)
DESCRIPTION These DTCs are output when an internal malfunction in the headlight ECU sub-assembly occurs. The headlight ECU sub-assembly LH outputs DTC B242C and B242D. DTC No. Detection Item DT
Open in IG Circuit (B242E)
DESCRIPTION This DTC is output when there is a problem in the power supply for the headlight ECU sub-assembly RH. The headlight ECU sub-assembly LH outputs DTC B242E. DTC No. Detection Item DTC
Headlamp LH Circuit (B2439,B243A)
DESCRIPTION This DTC is output when the headlight ECU sub-assembly receives an abnormal signal from the headlight unit. The headlight ECU sub-assembly LH outputs DTC B2439 and B243A DTC No. Detec
SEE MORE:
Installation
INSTALLATION PROCEDURE 1. INSTALL ACCELERATION SENSOR (a) for RH side: (1) Install the acceleration sensor with the 2 nuts. Torque: 8.5 N·m {87 kgf·cm, 75 in·lbf} NOTICE:
Avoid any impact to the acceleration sensor.
Do not drop the acceleration sensor. If it is dropped, replace it with a ne
Terminals Of Ecu
TERMINALS OF ECU NOTICE:
Turning the power switch on (IG) with connectors disconnected may cause DTCs to be stored. Make sure to clear the DTCs after inspection has been performed.
Do not apply excessive force to the millimeter wave radar sensor assembly connector.
CHECK MILLIMETER WAVE RAD
