DESCRIPTION
The ECM sends signals such as A/T information signals, dynamic radar cruise control operation signals, brake operation demand signals, and buzzer operation demand signals to the skid control ECU (brake actuator assembly) when the dynamic radar cruise control is operating. Therefore, if the skid control ECU (brake actuator assembly) detects a communication error with the ECM, it sends a malfunction signal back to the ECM.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
P1631 |
Communication Error from ECM to VSC |
While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, the ECM continuously receives a logical error signal from the skid control ECU (brake actuator assembly) for approximately 1 second or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
w/o Smart Key System: Click here
w/ Smart Key System: Click here
Click here
PROCEDURE
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Using the Techstream, check if the CAN communication system is functioning normally.
Click here
Result |
Proceed to |
---|---|
CAN communication system DTCs are not output |
OK |
CAN communication system DTCs are output |
NG |
NG |
GO TO CAN COMMUNICATION SYSTEM |
|
2. |
CHECK FOR DTCs (RADAR CRUISE1) |
(a) Clear the DTCs.
Click here
(b) Perform the following to make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the malfunction cannot be detected.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC P1631 is not output |
A |
DTC P1631 is output |
B |
A |
USE SIMULATION METHOD TO CHECK |
|
3. |
REPLACE ECM |
(a) Replace the ECM.
Click here
|
4. |
CHECK FOR DTCs (RADAR CRUISE1) |
(a) Clear the DTCs.
Click here
(b) Perform the following to make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the malfunction cannot be detected.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC P1631 is not output |
A |
DTC P1631 is output |
B |
A |
END |
B |
REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
Power Outlet Socket(for Rear Side)
Components
COMPONENTS
ILLUSTRATION
*1
USB CHARGER SOCKET
-
-
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR CONSOLE BOX ASSEMBLY
Click here
2. REMOVE USB CHARGER SOCKET
(a) Disengage the 4 claws to remove the USB charger soc ...
Radar Cruise Control Presence Determination Malfunction (Engine / HV) (C1A52)
DESCRIPTION
DTC C1A52 is stored when the ECM cannot recognize the millimeter wave radar sensor
assembly.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1A52
Radar Cruise Control Presence Determination Malfuncti ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for both the RH and LH sides.
The procedure described below is for the LH side.
PROCEDURE
1. INSTALL CURTAIN SHIELD AIRBAG ASSEMBLY
(a) Insert the 6 hooks, install 7 new bolts, 2 new clips (A) with pins and 2
...