Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GZ6V |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [01/2019 - 09/2022] |
Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM (for HV Model): U010487,U012287,U029387; Lost Communication with Cruise Control Module Missing Message; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] |
DTC
|
U010487
|
Lost Communication with Cruise Control Module Missing Message
|
DTC
|
U012287
|
Lost Communication with Vehicle Dynamics Control Module Missing Message
|
DTC
|
U029387
|
Lost Communication with Hybrid Powertrain Control Module Missing Message
|
DESCRIPTION
The hybrid vehicle control ECU communicates with each sensor and ECU via CAN communication.
If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
DTC Output from
|
U010487
|
Lost Communication with Cruise Control Module Missing Message
|
When the power switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the millimeter wave radar sensor assembly and hybrid vehicle control ECU is detected for approximately 1 second or more.
|
-
CAN communication system
-
Millimeter wave radar sensor assembly
-
Hybrid vehicle control ECU
|
Cruise Control
|
U012287
|
Lost Communication with Vehicle Dynamics Control Module Missing Message
|
When the power switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control ECU is detected for approximately 2.6 seconds or more.
|
-
CAN communication system
-
Skid control ECU (brake booster with master cylinder assembly)
-
Hybrid vehicle control ECU
|
Cruise Control
|
U029387
|
Lost Communication with Hybrid Powertrain Control Module Missing Message
|
When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control ECU is detected for approximately 1 second or more.
|
-
CAN communication system
-
Skid control ECU (brake booster with master cylinder assembly)
-
Hybrid vehicle control ECU
|
Cruise Control
|
PROCEDURE
(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 U010487, U012287 and U029387 are not output
|
A
|
DTC U010487, U012287 or U029387 is output
|
B
|
|