DESCRIPTION The skid
control ECU (brake actuator assembly) sends signals such as cruise
control cancel signals and brake demand response signals to the ECM when
the dynamic radar cruise control system is operating. |
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
MIL | | P163081 |
Communication Error from VSC to ECM Invalid Serial Data Received |
While
the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar
cruise control system is operating, communication data from the skid
control ECU (brake actuator assembly) is logically inconsistent for
approximately 0.5 seconds or more. |
- CAN communication system
- Skid control ECU (brake actuator assembly)
- ECM
| Does not come on | CAUTION / NOTICE / HINT
NOTICE:
- First check the CAN communication system by following How to Proceed
with Troubleshooting. After checking that there are no malfunctions in
the CAN communication system, proceed with troubleshooting.
Click here 
- Before replacing the ECM, refer to Registration.
Click here
- After the skid control ECU (brake actuator assembly) is replaced,
perform the yaw rate sensor and G sensor zero point calibration and
store the system information.
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 |
|
OK |
 | |
(a) Clear the DTCs. Powertrain > Radar Cruise1 > Clear DTCs
(b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs. Powertrain > Radar Cruise1 > Trouble Codes
|
Result | Proceed to | |
DTC P163081 is not output |
A | | DTC P163081 is output |
B |
| A |
| USE SIMULATION METHOD TO CHECK |
|
B | |
| |
| 3. |
REPLACE BRAKE ACTUATOR ASSEMBLY | (a) Replace the brake actuator assembly.
Click here
|
NEXT | |
| |
(a) Clear the DTCs. Powertrain > Radar Cruise1 > Clear DTCs
(b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs. Powertrain > Radar Cruise1 > Trouble Codes
|
Result | Proceed to | |
DTC P163081 is not output |
A | | DTC P163081 is output |
B |
| A |
| END |
| B |
| REPLACE ECM | | 
