Lexus ES manuals

Lexus ES: 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 normal VSC operation resumes.

DTC No.

Detection Item

INF Code

DTC Detection Condition

Trouble Area

MIL

Note

C1440

Steering Angle Sensor Unusual Bank Angle Detected

1157

Driving at a steep bank angle.

Yaw rate sensor (airbag ECU assembly)

Does not come on

VSC DTC

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Click here

Chassis > ABS/VSC/TRAC > Clear DTCs

(b) Turn the power switch off.

(c) Turn the power switch on (READY).

(d) Perform a road test.

(e) Check if the same DTC is output.

Click here

Chassis > ABS/VSC/TRAC > Trouble Codes

Result

Proceed to

DTC C1440 is output.

A

Yaw rate and acceleration sensor DTCs are output.

B

DTC C1440 is not output.

C

B

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

C

END (VSC TEMPORARILY DISABLED)

A

2.

CLEAR DTC

(a) Clear the DTCs.

Click here

Chassis > ABS/VSC/TRAC > Clear DTCs
NEXT

END

READ NEXT:

 Invalid Data Received from Deceleration Sensor (C1442,C1443)

DESCRIPTION The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition using 2 circuits (GL1, GL2). The skid control ECU (brake booster with master cylin

 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

 Calibration

CALIBRATION DESCRIPTION (a) After replacing any VSC related components or performing wheel alignment adjustment, clear and read the sensor calibration data. Refer to the table below and then perform t

SEE MORE:

 Freeze Frame Data

FREEZE FRAME DATA CHECK FREEZE FRAME DATA HINT: Whenever an active noise control system DTC is stored, the stereo component equalizer assembly stores the current vehicle state as freeze frame data. (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on

 Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Power Window Control System (for Gasoline Model) DTC No. Detection Item Link B2311 Power Window Motor Malfunction B2311 Power Window Motor Malfunction B2311 Power Window Motor Malfunction B2311 Power Window Motor Malfunction

© 2016-2024 Copyright www.lexguide.net