| Last Modified: 05-08-2025 | 6.11:8.1.0 | Doc ID: RM1000000021J3C |
| Model Year Start: 2022 | Model: RAV4 | Prod Date Range: [12/2021 - ] |
| Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for Gasoline Model): P163081; Communication Error from VSC to ECM Invalid Serial Data Received; 2022 - 2025 MY RAV4 [12/2021 - ] | ||
|
DTC |
P163081 |
Communication Error from VSC to ECM Invalid Serial Data Received |
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 |
Radar Cruise1 |
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the ECM, refer to Registration.
w/ Smart Key System: Click here
![2022 - 2025 MY RAV4 [12/2021 - ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
w/o Smart Key System: Click here
PROCEDURE
|
1. |
CHECK FOR DTCs (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) |
(a) Check for electronically controlled brake system DTCs.
Click here
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 |
|
|
|
2. |
CHECK FOR DTCs (Radar Cruise1) |
(a) Clear the DTCs.
Click here
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.
Click here
Powertrain > Radar Cruise1 > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC P163081 is not output |
A |
|
DTC P163081 is output |
B |
| A |
|
| B |
|
REPLACE ECM
|
|
|