DESCRIPTION
The skid control ECU (brake actuator assembly) sends signals such as brake request signals to the ECM. If an abnormal signal is detected, the ECM stores DTC P163081.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from |
---|---|---|---|---|---|
P163081 | Communication Error from VSC to ECM Invalid Serial Data Received | When the dynamic radar cruise control system is operating, the ECM detects abnormal data sent from the skid control ECU (brake actuator assembly) for approximately 1 second or more. |
| Does not come on | Cruise Control |
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the ECM, refer to Registration.
Click here
PROCEDURE
1. | CHECK FOR DTCs |
(a) Check for vehicle stability control system DTCs.
Chassis > Brake/EPB > 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. | CHECK FOR DTCs |
(a) Clear the DTCs.
Powertrain > Cruise Control > 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 > Cruise Control > Trouble Codes Result | Proceed to |
---|---|
DTC P163081 is not output | A |
DTC P163081 is output | B |
A | USE SIMULATION METHOD TO CHECK |
B | REPLACE ECM |
Lexus RX (RX 350L, RX450h) 2016-2024 Owners Manual > When trouble
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