Lexus ES: Communication Error from VSC to ECM Invalid Serial Data Received (P163081)
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 | Engine |
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the ECM, refer to Registration.
Click here .gif)
PROCEDURE
| 1. | CHECK FOR DTCs |
(a) Check for electronically controlled brake system DTCs.
Chassis > Brake/EPB > Trouble Codes| Result | Proceed to |
|---|---|
| Electronically controlled brake system DTCs are not output | A |
| Electronically controlled brake system DTCs are output | B |
| B | .gif) | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
|
.gif)
| 2. | CHECK FOR DTCs |
(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 | | REPLACE ECM |
READ NEXT:
Communication Error from VSC to ECM Invalid Serial Data Received (P163081)
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
Communication Error from ECM to VSC Invalid Serial Data Received (P163181)
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 actuat
Communication Error from ECM to VSC Invalid Serial Data Received (P163181)
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 actuat
SEE MORE:
Mass or Volume Air Flow Sensor "A" Circuit Short to Battery (P010012,P010014)
DESCRIPTION The mass air flow meter sub-assembly is a sensor that measures the intake air volume using the following built-in components:
By-pass duct (allows some of the intake air to flow past a silicon chip sensor)
Silicon chip sensor (uses a heater control bridge circuit and temperature sen
Removal
REMOVAL PROCEDURE 1. REMOVE RAIN SENSOR COVER *a Stopper Remove in this Direction (1) Remove in this Direction (2) (a) Release the stopper by pulling it out and disconnect the rain sensor as indicated by the arrows, in the order shown in the illustration. (b) Disengage the
