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 assembly 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 |
3 seconds after the ignition switch is turned to ON, the vehicle speed is 5 km/h (3 mph) or more and a signal from the yaw rate sensor 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 |
3 seconds after the ignition switch is turned to ON, the vehicle speed is 5 km/h (3 mph) or more and a signal from the yaw rate sensor 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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PROCEDURE
1. |
CHECK DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM) |
HINT:
If the yaw rate and acceleration sensor (airbag sensor assembly) is malfunctioning, DTCs for the vehicle stability control system will be stored. Troubleshoot the vehicle stability control system first.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Check for DTCs.
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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 DTC OUTPUT |
(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) Clear the DTCs.
Click here
(f) Make sure that the DTC detection conditions are met.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
(g) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC C1AA4 or C1AA5 is output. |
A |
DTC C1AA4 and C1AA5 are not output. |
B |
B |
USE SIMULATION METHOD TO CHECK |
|
3. |
REPLACE FORWARD RECOGNITION CAMERA |
(a) Replace the forward recognition camera.
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(b) Adjust the forward recognition camera.
Click here
|
4. |
CHECK DTC OUTPUT |
(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) Clear the DTCs.
Click here
(f) Make sure that the DTC detection conditions are met.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
(g) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC C1AA4 or C1AA5 is output. |
A |
DTC C1AA4 and C1AA5 are not output. |
B |
A |
REPLACE YAW RATE AND ACCELERATION SENSOR (AIRBAG SENSOR ASSEMBLY) |
B |
END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE) |
Data List / Active Test
DATA LIST / ACTIVE TEST
1. ACTIVE TEST
HINT:
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and
other items to be operated without removing any parts. This non-intrusive functional
inspection can be very useful because intermittent operation may be discovered befo ...
Slip Indicator Light Remains ON
DESCRIPTION
The skid control ECU (brake actuator assembly) is connected to the combination
meter assembly via CAN communication.
The slip indicator light blinks during VSC and/or TRAC operation.
If a malfunction is detected, the slip indicator light comes on to warn the driver
(See page ).
...
Inspection
INSPECTION
PROCEDURE
1. INSPECT AIR CONDITIONING CONTROL ASSEMBLY
(a) Check the blower switch resistance.
(1) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Component without harness connected
...