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

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

DESCRIPTION

If the skid control ECU (brake actuator assembly) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (brake actuator 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	DTC Detection Condition	Trouble Area
C1440	Steering Angle Sensor Unusual Bank Angle Detected	Driving at a steep bank angle	Yaw rate and acceleration sensor (Airbag sensor assembly)

PROCEDURE

CHECK DTC

(a) Clear the DTCs (See page (b) Turn the ignition switch off. ).

(b) Turn the ignition switch off.

(d) Perform a road test.

(e) Check if the same DTC is recorded (See page Result 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

END

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

CLEAR DTC

(a) Clear the DTCs (See page ).

HINT:

If the skid control ECU (brake actuator assembly) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (brake actuator assembly) 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.

END

Steering Angle Sensor Initialization Incomplete (C1439,C1445)

DESCRIPTION The skid control ECU (brake actuator assembly) acquires steering angle sensor zero point every time the ignition switch is turned ON and the vehicle is driven at 35 km/h (22 mph) or m ...

Open in ABS Solenoid Relay Circuit (C146E,C146F)

DESCRIPTION The ABS solenoid relay supplies power to the ABS solenoid and TRAC solenoid. The solenoid relay is turned on 1.5 seconds after the ignition switch is turned ON, and is turned off if an ...

Other materials:

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE STEERING INTERMEDIATE SHAFT ASSEMBLY (a) Put matchmarks on the steering intermediate shaft assembly and steering main shaft assembly. (b) Remove the bolt and steering intermediate shaft assembly. 2. REMOVE UPPER STEERING COLUMN BRACKET WITH SWITCH ASSEMBLY (w ...

Installation
INSTALLATION PROCEDURE 1. INSTALL REAR AXLE SHAFT OIL SEAL (a) Using SST and a hammer, install a new oil seal. SST: 09950-60020 09951-00770 SST: 09950-70010 09951-07150 2. INSTALL REAR AXLE SHAFT WITH BACKING PLATE (a) Install a new O-ring. (b) Install the rear axle shaft with backing ...

Transfer Case Rear Oil Seal
Components COMPONENTS ILLUSTRATION Replacement REPLACEMENT PROCEDURE 1. DRAIN TRANSFER OIL 2. REMOVE PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY (See page ) 3. REMOVE OUTPUT SHAFT COMPANION FLANGE SUB-ASSEMBLY 4. REMOVE TRANSFER EXTENSION HOUSING TYPE T OIL SEAL ( ...