Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Steering Angle Sensor Unusual Bank Angle Detected (C1440)

Toyota Tacoma (2015-2018) Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System(for Hydraulic Brake Booster) / Steering Angle Sensor Unusual Bank Angle Detected (C1440)

DESCRIPTION

If the skid control ECU (master cylinder solenoid) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (master cylinder solenoid) 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 C1440, after the vehicle is returned to a normal position.

HINT:

DTC C1440 and the yaw rate and acceleration sensor (airbag sensor assembly) DTC are stored when the skid control ECU (master cylinder solenoid) determines that the vehicle is being driven at a steep bank angle and either of the following conditions is met:

  • The yaw rate and acceleration sensor (airbag sensor assembly) is installed at an angle.
  • The yaw rate and acceleration sensor (airbag sensor assembly) signal output is stuck.

DTC Code

DTC Detection Condition

Trouble Area

C1440

Driving at a steep bank angle.

Yaw rate and acceleration sensor (airbag sensor assembly)

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs (See page ). (b) Perform a road test. ).

(b) Perform a road test.

(c) Check if the same DTC is output (See page ). Result ).

Result

Result

Proceed to

DTC C1440 is output

A

DTC C1440 is not output

B

Yaw rate and acceleration sensor DTC is output

C
B

END
C

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

A

2.

CHECK DTC

(a) Clear the DTCs (See page ). ).

HINT:

  • If the skid control ECU (master cylinder solenoid) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (master cylinder solenoid) 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 C1440, after the vehicle is returned to a normal position.
NEXT

END
Steering Angle Sensor Initialization Incomplete (C1439,C1445)
DESCRIPTION The skid control ECU (master cylinder solenoid) acquires steering angle sensor (spiral cable with sensor sub-assembly) zero point every time the ignition switch is turned to ON and th ...

Invalid Data Received from Deceleration Sensor (C1442,C1443)
DESCRIPTION The skid control ECU (master cylinder solenoid) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system. The airbag senso ...

Other materials:

System Description
SYSTEM DESCRIPTION 1. FUNCTION DESCRIPTION (a) ABS (Anti-lock Brake System) (1) The ABS helps prevent the wheels from locking when the brakes are applied firmly or when braking on a slippery surface. (b) EBD (Electronic Brake force Distribution) (1) The EBD control utilizes ABS, and performs ...

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL FRONT BUMPER COVER INSERT LH (a) Engage the clip to install the front bumper cover insert LH. (b) Install the bolt. Torque: 5.9 N·m {60 kgf·cm, 52 in·lbf} 2. INSTALL FRONT BUMPER COVER INSERT RH HINT: U ...

Short in GPS Antenna (B15C0,B15C1)
DESCRIPTION These DTCs are stored when a malfunction occurs in the navigation antenna assembly. DTC No. DTC Detection Condition Trouble Area B15C0 Navigation antenna error Navigation antenna assembly Radio and ...

© 2011-2026 Copyright www.ttguide.net