Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000026PZJ |
Model Year Start: 2023 |
Model: Corolla HV |
Prod Date Range: [09/2022 -
] |
Title: HYBRID / BATTERY CONTROL: HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with PA10): U010087; Lost Communication with ECM/PCM "A" Missing Message; 2023 - 2025 MY Corolla HV [09/2022 - ] |
DTC
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U010087
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Lost Communication with ECM/PCM "A" Missing Message
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DESCRIPTION
The battery ECU assembly transmits and receives signals via CAN communication to and from the ECM.
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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Warning Indicate
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Note
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U010087
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Lost Communication with ECM/PCM "A" Missing Message
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A CAN communication error between the battery ECU assembly and ECM (CAN communication system malfunction) occurs
(1 trip detection logic)
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CAN communication system
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Comes on
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Master Warning:
Comes on
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SAE Code: U0100
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MONITOR DESCRIPTION
If the battery ECU assembly detects a problem with CAN communication with the ECU, it will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs
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U0100 (INF U010087): Lost communication with ECM/PCM
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Required sensors/components
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Battery ECU assembly
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Frequency of operation
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Continuous
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Duration
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TMC's intellectual property
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MIL operation
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Immediately
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Sequence of operation
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None
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TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not stored
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TMC's intellectual property
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Other conditions belong to TMC's intellectual property
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-
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TYPICAL MALFUNCTION THRESHOLDS
TMC's intellectual property
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-
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COMPONENT OPERATING RANGE
Battery ECU assembly
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DTC U0100 (INF U010087) is not detected
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CONFIRMATION DRIVING PATTERN
HINT:
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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
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When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
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Connect the GTS to the DLC3.
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Turn the ignition switch to ON and turn the GTS on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the ignition switch off and wait for 2 minutes or more.
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Turn the ignition switch to ON and turn the GTS on.
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With ignition switch ON and wait for 2 minutes or more.[*1]
HINT:
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
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Enter the following menus: Powertrain / HV Battery / Utility / All Readiness.
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Check the DTC judgment result.
HINT:
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If the judgment result shows NORMAL, the system is normal.
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If the judgment result shows ABNORMAL, the system has a malfunction.
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If the judgment result shows INCOMPLETE, perform the normal judgment procedure again.
PROCEDURE
1.
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CHECK DTC OUTPUT (HV BATTERY)
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(a) Check for DTCs.
Powertrain > HV Battery > Trouble Codes
(b) Turn the ignition switch off.
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