DESCRIPTION
The steering lock ECU and steering lock motor are built into the steering lock actuator assembly.
The steering lock ECU (steering lock actuator or UPR bracket assembly) detects whether the steering lock is in the lock or unlock position by using the lock sensor and unlock sensor of the steering lock motor.
The steering lock ECU (steering lock actuator or UPR bracket assembly) receives lock and unlock request signals from the certification ECU (smart key ECU assembly) and responds with lock and unlock operation signals.
HINT:
The steering lock ECU (steering lock actuator or UPR bracket assembly) is not connected to the CAN communication system. However, the steering lock ECU (steering lock actuator or UPR bracket assembly) is connected to the certification ECU (smart key ECU assembly) via LIN communication and communicates with other components via CAN communication through the certification ECU (smart key ECU assembly).
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
B2781 |
Open / Short in Steering Lock ECU |
One of the following conditions is met (1-trip detection logic*1) :
|
|
DTC Output Confirmation Operation: No confirmation operation is necessary (monitoring is continuous). |
Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
---|---|
The steering cannot be locked or unlocked. For this reason, the engine cannot be started. |
Prohibits the engine from being started (the engine does not crank). |
DTC No. |
Data List Item |
Active Test Item |
---|---|---|
B2781 |
Smart Key
|
- |
CAUTION / NOTICE / HINT
NOTICE:
HINT:
When all the ECUs that are connected via LIN communication cannot communicate with the certification ECU (smart key ECU assembly), DTC B2785 is stored.
PROCEDURE
1. |
CHECK DTC |
(a) Using the Techstream, check if LIN communication DTC B2785 is output (See
page ).
HINT:
If a LIN communication DTC is output, perform troubleshooting for the LIN communication
system (See page ).
Result |
Proceed to |
---|---|
DTC B2785 is output. |
A |
DTC B2785 is not output. |
B |
A | ![]() |
GO TO LIN COMMUNICATION SYSTEM (DTC B2785) |
B | ![]() |
REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPR BRACKET ASSEMBLY) |
Sending Malfunction (Navigation to APGS) (U0073,U0100,U0129,U0140,U0155,U0164)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the CAN communication circuit.
DTC Code
DTC Detection Condition
Trouble Area
U0073
CAN bus connection error
CAN communication system
U0100
...
Meter Illumination is Always Dark
DESCRIPTION
In this circuit, the combination meter assembly receives auto dimmer signals
from the main body ECU (multiplex network body ECU) using the CAN communication
system (CAN V1 Bus). When the meter CPU receives an auto dimmer signal, it dims
the meter illumination (warning and indicato ...
Front Airbag Sensor RH Circuit Malfunction (B1610/13)
DESCRIPTION
The front airbag sensor RH consists of parts such as the diagnostic circuit and
the frontal detection sensor.
When the airbag sensor assembly receives signals from the frontal deceleration
sensor, it determines whether or not the SRS should be activated.
DTC B1610/13 is set when a ...