C1440

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C1440: Steering Angle Sensor Unusual Bank Angle Detected

DTC C1440 - Steering Angle Sensor Unusual Bank Angle Detected

DESCRIPTION

If the skid control ECU determines that the vehicle is being driven at a steep bank angle, the skid control ECU stores DTC C1440 while VSC operation is temporarily disabled.
It is not a malfunction if the system and sensor circuits are normal and if the normal VSC operation resumes, which automatically clears DTC 1440, after the vehicle is returned to a normal position.
HINT:
DTC C1440 and the yaw rate and acceleration sensor DTC are stored when the skid control ECU determines that the vehicle is being driven at a steep bank angle and either of the following conditions is present:
- The yaw rate and acceleration sensor is installed at a titled angle.
- The yaw rate and acceleration sensor signal output is stuck.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Drive the vehicle at a speed of 30 km/h (19 mph) or more, turn the steering wheel, and decelerate the vehicle (depress the brake pedal).
(c) Check if the same DTC is recorded Reading and Clearing Diagnostic Trouble Codes.
HINT:
Drive the vehicle straight on a level road during the road test, and check if DTC 1440 and the yaw rate and acceleration sensor DTC are output again.

Result:






B -- REPAIR CIRCUIT INDICATED BY OUTPUT DTC
A -- END