DESCRIPTION
If the engine switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode.
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
WIRING DIAGRAM
Refer to Power Source Mode does not Change to ON (IG and ACC) (See page ).
CAUTION / NOTICE / HINT
NOTICE:
Click here
Troubleshoot the smart key system (for Start Function) after confirming that the communication systems are functioning properly.
Problem Symptom |
Data List Item |
Active Test Item |
---|---|---|
Power source mode does not change to on (ACC) but does change to on (IG) |
Power Source Control
Starting Control
|
- |
PROCEDURE
1. |
CHECK FOR DTC |
(a) Using the Techstream, check for certification ECU (smart key ECU assembly) DTCs (See page ).
Result
Result |
Proceed to |
---|---|
DTCs are not output |
A |
Smart key system (for Start Function) DTCs are output |
B |
B |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
2. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - DRIVER SIDE JUNCTION BLOCK) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT DRIVER SIDE JUNCTION BLOCK (ACC RELAY) |
NG |
REPLACE DRIVER SIDE JUNCTION BLOCK |
|
4. |
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
OK |
USE SIMULATION METHOD TO CHECK |
NG |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Unable to Unlock Steering Wheel (Engine cannot Start)
DESCRIPTION
The steering lock actuator assembly activates the steering lock motor and moves
the lock bar into the steering column to lock the steering.
The steering may not unlock when the lock bar gets stuck in the lock hole of
the steering column. In this case, if the engine switch is turned ...
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT DOOR SCUFF PLATE LH (for Double Cab)
Click here
2. REMOVE FRONT DOOR SCUFF PLATE LH (for Access Cab)
Click here
3. REMOVE COWL SIDE TRIM BOARD LH
Click here
4. REMOVE INSTRUMENT CLUSTER CENTER FINISH PANEL SUB-ASSEMBLY
Click here
5. REMOVE INSTRUME ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSION
(a) The type of ignition switch used on this model differs depending on the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine S ...