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:
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Check the DTCs.
(1) Turn the ignition switch off.
(2) Connect the Techstream to the DLC3.
(3) Turn the ignition switch to ON.
(4) Turn the Techstream on.
(5) Read the DTCs following the prompts on the Techstream screen. Enter the following
menus: Powertrai ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Air Conditioning System
DTC Code
Detection Item
Memory
See page
B1411/11
Room Temperature Sensor Circuit
Memorized
(4 seconds or more)
B1412/12
...
Portable Player cannot be Registered
CAUTION / NOTICE / HINT
HINT:
Some versions of "Bluetooth" compatible audio players may not function, or the
function may be limited using the radio and display receiver assembly, even if the
portable audio player itself can play files (See page
).
PROCEDURE
1.
...
