DESCRIPTION
This DTC is stored when the skid control ECU (brake actuator assembly) detects improper installation of the yaw rate and acceleration sensor (airbag sensor assembly) or an abnormality in the difference between the yaw rate sensor value and the control value estimated based on the acceleration sensor, steering angle sensor and speed sensor signals.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1436 |
Yaw Rate Sensor Malfunction |
Difference between the yaw rate sensor value and the control value estimated inside the skid control ECU (brake actuator assembly) is abnormal. |
|
PROCEDURE
1. |
READ VALUE USING TECHSTREAM (YAW RATE AND ACCELERATION SENSOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Select the Data List using the Techstream.
Click here
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|---|
Yaw Rate Sensor |
Yaw rate sensor |
Min.: -128 °/s, Max.: 127 °/s |
Vehicle stopped: 0 °/s Turning right: -128 to 0 °/s Turning left: 0 to 127 °/s |
- |
Tester Display |
---|
Yaw Rate Sensor |
(d) Check the yaw rate and acceleration sensor (airbag sensor assembly) output value displayed on the Techstream.
Result |
Proceed to |
---|---|
NG (The yaw rate and acceleration sensor (airbag sensor assembly) output value is 0 °/s when the vehicle is stationary, but the value fluctuates when turning.) |
A |
NG (The yaw rate and acceleration sensor (airbag sensor assembly) output value is not 0 °/s when the vehicle is stationary.) |
B |
OK |
C |
HINT:
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.
Click here
B | ![]() |
REPLACE AIRBAG SENSOR ASSEMBLY
|
C | ![]() |
USE SIMULATION METHOD TO CHECK
|
|
2. |
CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION |
(a) Turn the ignition switch off.
(b) Drive the vehicle straight ahead at 50 km/h (31 mph) or more for at least 30 seconds.
(c) Check that the steering wheel is correctly centered while driving straight ahead.
HINT:
If front wheel alignment and steering are adjusted as a result of an off-center steering wheel, acquire the yaw rate and acceleration sensor zero point again after the adjustments are completed.
OK:
The steering wheel is correctly centered.
NG | ![]() |
ADJUST FRONT WHEEL ALIGNMENT OR STEERING
|
|
3. |
CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION |
(a) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.
Click here
OK:
The airbag sensor assembly is tightened to the specified torque.
The airbag sensor assembly is not be installed in a tilted position.
HINT:
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.
Click here
OK | ![]() |
REPLACE AIRBAG SENSOR ASSEMBLY
|
NG | ![]() |
INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY
|
Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted
Air Conditioner Pressure Sensor): Lost Communication with ECM (U0100-U0142,U0155)
DESCRIPTION
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Memory
U0100
Lost Communication with ECM
No communication with ECM
CAN communication system
ECM
...
Toyota CH-R Service Manual > Can Communication System: Check Bus 1 Line for Short to +B
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and +B when no
resistance exists between terminal 23 (CA1H) of the central gateway ECU (network
gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 8 (CA1L) of the central
gateway ECU (network gateway ECU) and t ...