DESCRIPTION
The skid control ECU (brake actuator assembly) sends signals such as brake request signals to the ECM. When the ECM detects logic error signals sent from the skid control ECU (brake actuator assembly) for a certain period of time, DTC P163181 is stored.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
---|---|---|---|---|
P163181 | Communication Error from ECM to VSC Invalid Serial Data Received | When the ignition switch is ON and the dynamic radar cruise control system is operating, the ECM detects logic error signals sent from the skid control ECU (brake actuator assembly) for approximately 1 second or more. |
| Radar Cruise1 |
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the ECM, refer to Service Bulletin.
PROCEDURE
1. | CHECK FOR DTCs |
(a) Check for vehicle stability control system DTCs.
Chassis > Brake > Trouble Codes Result | Proceed to |
---|---|
Vehicle stability control system DTCs are not output | A |
Vehicle stability control system DTCs are output | B |
B |
![]() | GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
2. | CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Radar Cruise1 > Clear DTCs
|
3. | CHECK FOR DTCs |
(a) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(b) Check for DTCs.
Powertrain > Radar Cruise1 > Trouble Codes Result | Proceed to |
---|---|
DTC P163181 is not output | A |
DTC P163181 is output | B |
A |
![]() | USE SIMULATION METHOD TO CHECK |
B |
![]() | REPLACE ECM |
WARNING
Never allow a person to ride in the luggage compartment/trunk
Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision.
Do not drive with the liftgate/trunk lid open