HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): U11BC87; Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message; 2023 - 2025 MY Corolla HV [09/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM10000000278F1
Model Year Start: 2023	Model: Corolla HV	Prod Date Range: [09/2022 - ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): U11BC87; Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message; 2023 - 2025 MY Corolla HV [09/2022 - ]

DTC

U11BC87

Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message

DESCRIPTION

The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the No. 2 skid control ECU (brake actuator assembly).

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Note

U11BC87

Lost Communication with Hybrid/EV Powertrain Control Module (ch6) Missing Message

No. 2 skid control ECU (brake actuator assembly) cannot receive signals from the hybrid vehicle control ECU

(1 trip detection logic)

No. 2 skid control ECU (brake actuator assembly)
Hybrid vehicle control ECU
Wire harness or connector

Does not come on

Master Warning:

Does not come on

SAE Code:

U11BC

CONFIRMATION DRIVING PATTERN

HINT:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click here

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for 2 minutes or more.
Turn the ignition switch to ON and wait for 2 minutes or more.
Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.

PROCEDURE

1.	GO TO CAN COMMUNICATION SYSTEM

Click here

END