Toyota Tacoma (2015-2018) Service Manual: 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 .gif)
).
(b) Perform a road test.
(c) Check if the same DTC is output (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC C1440 is output |
A |
|
DTC C1440 is not output |
B |
|
Yaw rate and acceleration sensor DTC is output |
C |
| B | .gif) |
END |
| C | |
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS |
|
.gif)
|
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:
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...
Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
(P2769,P2770)
DESCRIPTION
Shift solenoid valve SL is turned on and off by signals from the ECM to control
the hydraulic pressure acting on the lock-up relay valve, which then controls operation
of the lock-up clutch.
DTC No.
DTC Detection Condition
Trouble Area
...
Fuel Tank Cap
Inspection
INSPECTION
PROCEDURE
1. INSPECT FUEL TANK CAP ASSEMBLY
(a) Check the appearance of the fuel tank cap assembly.
(1) Check that there is no deformation or damage to the fuel tank cap assembly
or fuel tank cap gasket.
*1
Fuel Tank Cap Gasket
If the ...
