Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000026PYA |
Model Year Start: 2023 |
Model: Corolla HV |
Prod Date Range: [09/2022 -
] |
Title: HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): U010087,U029387,U117008,U117087; Lost Communication With ECM/PCM "A" Missing Message; 2023 - 2025 MY Corolla HV [09/2022 - ] |
DTC
|
U010087
|
Lost Communication With ECM/PCM "A" Missing Message
|
DTC
|
U029387
|
Lost Communication With Hybrid Powertrain Control Module Missing Message
|
DTC
|
U117008
|
Lost Communication with Brake System Control Module (ch2) Bus Signal / Message Failure
|
DTC
|
U117087
|
Lost Communication With Brake System Control Module(ch2) Missing Message
|
DESCRIPTION
The motor generator control ECU communicates with the hybrid vehicle control ECU, ECM and skid control ECU assembly via CAN communication.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
Warning Indicate
|
Note
|
U010087
|
Lost Communication With ECM/PCM "A" Missing Message
|
A CAN communication error between the ECM and motor generator control ECU (CAN communication system malfunction) occurs
(1 trip detection logic)
|
CAN communication system
|
Comes on
|
Master Warning:
Comes on
|
SAE Code:
U0100
|
U029387
|
Lost Communication With Hybrid Powertrain Control Module Missing Message
|
A CAN communication error between the hybrid vehicle control ECU and motor generator control ECU (CAN communication system malfunction) occurs
(1 trip detection logic)
|
CAN communication system
|
Comes on
|
Master Warning:
Comes on
|
SAE Code:
U0293
|
U117008
|
Lost Communication with Brake System Control Module (ch2) Bus Signal / Message Failure
|
A CAN communication error between the skid control ECU assembly and motor generator control ECU (CAN communication system malfunction) occurs
(1 trip detection logic)
|
CAN communication system
|
Does not come on
|
Master Warning:
Comes on
|
SAE Code:
U1170
|
U117087
|
Lost Communication With Brake System Control Module(ch2) Missing Message
|
A CAN communication error between the skid control ECU assembly and motor generator control ECU (CAN communication system malfunction) occurs
(1 trip detection logic)
|
CAN communication system
|
Comes on
|
Master Warning:
Comes on
|
SAE Code:
U1170
|
MONITOR DESCRIPTION
If the motor generator control ECU detect problem with CAN communication with each ECU, it will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs
|
U0100 (INF U010087): Lost Communication With ECM/PCM
U0293 (INF U029387): Lost Communication With Hybrid Control Module
U1170 (INF U117087): Lost Communication With Brake System Control Module
|
Required sensors/components
|
Motor generator control ECU
|
Frequency of operation
|
Continuous
|
Duration
|
TMC's intellectual property
|
MIL operation
|
Immediately
|
Sequence of operation
|
None
|
TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not stored
|
TMC's intellectual property
|
Other conditions belong to TMC's intellectual property
|
-
|
TYPICAL MALFUNCTION THRESHOLDS
TMC's intellectual property
|
-
|
COMPONENT OPERATING RANGE
Motor generator control ECU
|
DTC U0100 (INF U010087) is not detected
DTC U0293 (INF U029387) is not detected
DTC U1170 (INF U117087) is not detected
|
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
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" 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. [*1]
HINT:
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
-
Enter the following menus: Powertrain / Motor Generator / 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, perform the normal judgment procedure again.
PROCEDURE
1.
|
CHECK DTC OUTPUT (MOTOR GENERATOR)
|
(a) Check for DTCs.
Powertrain > Motor Generator > Trouble Codes
Result
|
Proceed to
|
None of the following DTCs are output.
|
A
|
Any of the following DTCs are also output.
|
B
|
Relevant DTC
|
U11B300
|
Lost Communication with Hybrid/EV Powertrain Control Module (ch5) (System 2) Missing Message
|
U11B387
|
Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Missing Message
|
HINT:
U010087, U029387, U117008 or U117087 may be stored due to a malfunction which also causes the DTCs in the preceding table to be stored. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.
(b) Turn the ignition switch off.
B |
|
GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM)
|
|