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Last Modified: 01-27-2025 |
6.11:8.1.0 |
Doc ID: RM100000001CUPG |
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Model Year Start: 2019 |
Model: Corolla Hatchback |
Prod Date Range: [06/2018 - 01/2019] |
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Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for M20A-FKS): P163081; Communication Error from VSC to ECM Invalid Serial Data Received; 2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019] |
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DTC
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P163081
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Communication Error from VSC to ECM Invalid Serial Data Received
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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.
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DTC No.
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Detection Item
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DTC Detection Condition
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Trouble Area
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MIL
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DTC Output from
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P163081
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Communication Error from VSC to ECM Invalid Serial Data Received
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w/o Full-speed Range Following Function:
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When the vehicle speed is 30 km/h (20 mph) or more and 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.
w/ Full-speed Range Following Function:
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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.
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Electronically controlled brake system
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ECM
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Does not come on
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ECM
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CAUTION / NOTICE / HINT
NOTICE:
Before replacing the ECM, refer to Registration.
Click here
PROCEDURE
(a) Check for electronically controlled brake system DTCs.
Chassis > Brake/EPB > Trouble Codes
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Result
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Proceed to
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Electronically controlled brake system DTCs are not output
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A
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Electronically controlled brake system DTCs are output
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B
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A
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(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
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Result
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Proceed to
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DTC P163081 is not output
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A
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DTC P163081 is output
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B
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