| Last Modified: 05-08-2025 | 6.11:8.1.0 | Doc ID: RM100000001EKOD |
| Model Year Start: 2019 | Model: RAV4 HV | Prod Date Range: [11/2018 - 08/2020] |
| Title: HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): U010087,U029387,U117087; Lost Communication With ECM/PCM "A" Missing Message; 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020] | ||
|
DTC |
U010087 |
Lost Communication With ECM/PCM "A" Missing Message |
|
DTC |
U029387 |
Lost Communication With Hybrid Powertrain Control Module Missing Message |
|
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 assembly, 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: Comes on |
|
U029387 |
Lost Communication With Hybrid Powertrain Control Module Missing Message |
A CAN communication error between the hybrid vehicle 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 |
|
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 |
Does not come on |
Master Warning: Comes on |
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
![2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): UTILITY](/t3Portal/stylegraphics/info.gif)
- 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.
- 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 driving pattern again.
PROCEDURE
|
1. |
CHECK DTC OUTPUT (MOTOR GENERATOR) |
(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 |
|
|
|