DESCRIPTION
The forward recognition camera receives vehicle stability signals from the yaw rate and acceleration sensor (airbag sensor assembly). If the yaw rate and acceleration sensor (airbag sensor assembly) detects an abnormal yaw rate sensor signal or yaw rate sensor power supply voltage, it informs the forward recognition camera via CAN communication, and DTC C1AA4 or C1AA5 is stored.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1AA4 |
Yaw Rate Sensor Circuit |
After the ignition switch is turned to ON for 3 seconds or more, when the vehicle is being driven at a speed of 1 km/h or 1 mph or more, a signal from the yaw rate and acceleration sensor (airbag sensor assembly) indicating a malfunction in the yaw rate sensor is detected by the forward recognition camera for 5 seconds or more. |
|
C1AA5 |
Yaw Rate Sensor Power Supply Voltage Circuit |
After the ignition switch is turned to ON for 3 seconds or more, when the vehicle is being driven at a speed of 1 km/h or 1 mph or more, a signal from the yaw rate and acceleration sensor (airbag sensor assembly) indicating an abnormal yaw rate sensor power supply voltage signal is detected by the forward recognition camera for 5 seconds or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
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Click here
PROCEDURE
1. |
CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM) |
HINT:
Forward recognition camera system DTC C1AA4 or C1AA5 may be stored due to a malfunction in the vehicle stability control system. Therefore, it is necessary to check for and troubleshoot vehicle stability control system DTCs first.
(a) Check for DTCs.
Click here
Click here
Result |
Proceed to |
---|---|
Vehicle stability control system DTCs are not output |
A |
Vehicle stability control system DTCs are output (for Vacuum Brake Booster) |
B |
Vehicle stability control system DTCs are output (for Hydraulic Brake Booster) |
C |
B | ![]() |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
C | ![]() |
GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
2. |
CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM) |
(a) Clear the DTCs.
Click here
(b) Make sure that the DTC detection conditions are met.
HINT:
If the conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC C1AA4 and C1AA5 are not output |
A |
DTC C1AA4 or C1AA5 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
|
3. |
REPLACE FORWARD RECOGNITION CAMERA |
(a) Replace the forward recognition camera.
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(b) Perform forward recognition camera axis adjustment.
Click here
|
4. |
CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM) |
(a) Clear the DTCs.
Click here
(b) Make sure that the DTC detection conditions are met.
HINT:
If the conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC C1AA4 and C1AA5 are not output |
A |
DTC C1AA4 or C1AA5 is output |
B |
A | ![]() |
END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE) |
B | ![]() |
REPLACE YAW RATE AND ACCELERATION SENSOR (AIRBAG SENSOR ASSEMBLY) |
Steering Angle Sensor Output Malfunction (C1434)
DESCRIPTION
Steering angle sensor signals are input to the skid control ECU (brake actuator
assembly) via the CAN communication system.
HINT:
When a malfunction occurs in the communication line to the steering angle sensor,
U0126 is output. If a DTC related to the CAN communication line is ou ...
Dtc Check / Clear
DTC CHECK / CLEAR
CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / LKA/LDA / Trouble Codes.
(e) Check for DTCs.
Click here
CLEAR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn ...
System Diagram
SYSTEM DIAGRAM
Transmitting ECU (Transmitter)
Receiving ECU
Signal
Communication Method
4 wheel drive control ECU
Skid control ECU (Brake actuator assembly)
Rear differential lock status signal
H ...