DESCRIPTION
The engine control unit and the transmission control unit are located inside the ECM. The engine control unit intercommunicates with the transmission control unit with the Controller Area Network (CAN).
If there is a problem in this intercommunication, the ECM stores a DTC.
DTC Code |
DTC Detection Condition |
Trouble Area |
SAE |
---|---|---|---|
U010087 |
All conditions are met for 1.25 seconds or more (1-trip detection logic): (A) The ignition switch is ON and battery voltage is 9.5 V or higher. (B) There is no communication between the engine control unit and transmission control unit. |
ECM |
U0100 |
MONITOR STRATEGY
Related DTCs |
U0100: Verify communication |
Required Sensors/Components (Main) |
ECM |
Required Sensors/Components (Related) |
- |
Frequency of Operation |
Continuous |
Duration |
1.25 seconds |
MIL Operation |
Immediate |
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs not stored |
None |
Battery Voltage |
9.5 V or higher |
Ignition Switch |
ON |
Starter |
OFF |
TYPICAL MALFUNCTION THRESHOLDS
Communication signal |
Lost communication with engine control unit |
CONFIRMATION DRIVING PATTERN
HINT:
HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Techstream Display |
Description |
---|---|
NORMAL |
|
ABNORMAL |
|
INCOMPLETE |
|
N/A |
|
HINT:
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK DTC OUTPUT (IN ADDITION TO DTC U010087) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Transmission / Trouble Codes.
(e) Read the DTCs using the Techstream.
Result
Result |
Proceed to |
---|---|
Only U010087 is output |
A |
U010087 and other DTCs are output |
B |
A | ![]() |
REPLACE ECM |
B | ![]() |
GO TO DTC CHART |
Registration
REGISTRATION
PROCEDURE
1. BEFORE REGISTRATION
NOTICE:
The transmitter ID is written on the tire pressure warning valve and transmitter.
It is not possible to read the transmitter ID after installing the tire onto the
wheel. Therefore, make a note of the transmitter ID before installing the t ...
Under Hood
General Maintenance
GENERAL MAINTENANCE
PROCEDURE
1. GENERAL NOTES
Maintenance items may vary from country to country. Check the owner's
manual supplement in which the maintenance schedule is shown.
Every service item in the periodic maintenance schedule must be performed.
...
Key information
The following keys are provided with the vehicle.
Vehicles without engine immobilizer
system
Master keys
Key number plate
Vehicles with engine immobilizer
system
Master keys
Key number plate
■Key number plate
Keep the plate in a safe place such as your wallet, not in the v ...