Lexus NX: Steering Angle Sensor Unusual Bank Angle Detected (C1440)
DESCRIPTION
If the skid control ECU (brake booster with master cylinder assembly) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (brake booster with master cylinder assembly) stores DTC C1440 while VSC operation is temporarily disabled.
This is not a malfunction if the system and sensor circuits are normal and if normal VSC operation resumes.
| DTC No. | Detection Item | INF Code | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|---|
| C1440 | Steering Angle Sensor Unusual Bank Angle Detected | - | Driving at a steep bank angle. | Yaw rate and acceleration sensor (Airbag ECU assembly) | - |
PROCEDURE
| 1. | CHECK DTC |
(a) Clear the DTCs.
Click here .gif)
(b) Turn the power switch off.
(c) Perform a road test.
(d) Check if the same DTC is output.
Click here
| Result | Proceed to |
|---|---|
| DTC C1440 is output. | A |
| DTC C1440 is not output. | B |
| Yaw rate and acceleration sensor DTCs are output. | C |
| B | .gif) | END |
| C | | REPAIR CIRCUITS INDICATED BY OUTPUT DTCS |
|
.gif)
| 2. | CLEAR DTC |
(a) Clear the DTCs.
Click here
HINT:
- If the skid control ECU (brake booster with master cylinder assembly) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (brake booster with master cylinder assembly) stores DTC C1440 while VSC operation is temporarily disabled.
- This is not a malfunction if the system and sensor circuits are normal and if normal VSC operation resumes.
| NEXT | | END |
READ NEXT:
Invalid Data Received from Deceleration Sensor (C1442,C1443)
DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) receives signals from the yaw rate and acceleration sensor (airbag ECU assembly) via the CAN communication system. The ai
Motor Drive Permission Malfunction (C1451)
DESCRIPTION If air bleeding has not been performed, the skid control ECU (brake booster with master cylinder assembly) stores DTC C1451 to prevent the entry of air due to pump motor operation. DTC C14
Control Module Communication Bus OFF (U0073,U0120,U0123,U0124,U0126,U0128,U0293)
DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) receives signals from the hybrid vehicle control ECU, steering sensor, parking brake ECU assembly, certification ECU (sma
SEE MORE:
Inspection
INSPECTION PROCEDURE 1. INSPECT PARKING BRAKE ACTUATOR ASSEMBLY (a) Parking brake actuator assembly operation inspection (1) Apply voltage to the terminals of the parking brake actuator assembly and check that it operates as specified. OK: LH Tester Connection Parking Brake Actuator Assembl
System Description
SYSTEM DESCRIPTION CAN COMMUNICATION SYSTEM (a) The blind spot monitor system uses CAN communication to transmit data between the right and left blind spot monitor sensors and each ECU. (b) If there is a problem in the CAN communication, the right and left blind spot monitor sensors output a CAN com
