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 | |
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 Light:
Comes on | | 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 Light:
Comes on | | 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 Light:
Comes on | MONITOR DESCRIPTION
If
the motor generator control ECU detect problem with CAN communication
with each ECU, it will illuminate the MIL and set 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
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for 2 minutes or more.
- Turn the power switch on (IG) and turn the Techstream on.
- With power switch on (IG) 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 or N/A, perform the normal judgment procedure again.
PROCEDURE |
1. | CHECK DTC OUTPUT (MOTOR GENERATOR CONTROL) |
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Motor Generator / Trouble Codes.
(d) 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 | | P312487 |
Lost Communication between Drive Motor "A" and HV ECU Missing Message |
HINT: U010087,
U029387 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. (e) Turn the power switch off.
| A |
 | GO TO CAN COMMUNICATION SYSTEM |
| B |
| GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM) | | 
