DESCRIPTION
The forward recognition camera receives vehicle speed signals from the skid control ECU. If the skid control ECU receives a vehicle speed sensor malfunction signal, it informs the forward recognition camera via CAN communication, and DTC C1AA3 is stored.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1AA3 |
Vehicle Speed Sensor Circuit |
3 seconds after the ignition switch is turned to ON, a signal from the skid control ECU indicating a malfunction in a vehicle speed sensor 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:
If DTC C1AA3 is stored, the vehicle stability control system may be malfunctioning. Check for DTCs related to the vehicle stability control system 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 C1AA3 is not output |
A |
DTC C1AA3 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 C1AA3 is not output |
A |
DTC C1AA3 is output (for Vacuum Brake Booster) |
B |
DTC C1AA3 is output (for Hydraulic Brake Booster) |
C |
A | ![]() |
END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE) |
B | ![]() |
REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
C | ![]() |
REPLACE SKID CONTROL ECU (MASTER CYLINDER SOLENOID) |
Sound Quality is Bad Only when CD is Played (Volume is Too Low)
PROCEDURE
1.
REPLACE CD AND RECHECK
(a) Replace the CD with a known good one and recheck.
(1) Check if the same malfunction occurs again.
OK:
Malfunction disappears.
OK
END
NG
REPLACE NAVIGATION RECEIVER ASSEMBLY ...
Road Test
ROAD TEST
PROBLEM SYMPTOM CONFIRMATION
HINT:
The dynamic radar cruise control system has 2 cruise control modes:
constant speed control mode and vehicle-to-vehicle distance control mode.
Vehicle-to-vehicle distance control mode is selected by default when
the dyna ...
Front Radar Sensor Region Code Mismatch (C1A0A)
DESCRIPTION
When the destination information in the millimeter wave radar sensor assembly
and forward recognition camera do not match, DTC C1A0A is stored.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
MIL
C1A0 ...