VERACRUZ(EN) >2009 > G 3.8 DOHC > Body Electrical System > Smart key System>Repair procedures  
Inspection
Self Diagnosis With Scan Tool
It will be able to diagnose defects of SMART KEY system with scan tool quickly. Scan tool can operates actuator forcefully, input/output value monitoring and self diagnosis
The following three features will be major problem in SMART KEY system.
1.
Problem in SMART KEY unit input.
2.
Problem in SMART KEY unit.
3.
Problem in SMART KEY unit output.
So the following three diagnosis operates will be the major problem solution process.
1.
SMART KEY unit Input problem : switch diagnosis
2.
SMART KEY unit problem : communication diagnosis
3.
SMART KEY unit Output problem : antenna and switch output diagnosis
Switch Diagnosis
1.
Connect the cable of scan tool to the data link connector in driver side crash pad lower panel, turn the power on scan tool.
2.
Select the vehicle model and then SMART KEY system.
3.
Select the "SMART KEY unit".
4.
After IG ON, select the "Current data".

5.
You can see the situation of each switch on scanner after connecting the "current data" process.
DISPLAY
 DESCRIPTION
FL TOGGLE SW
 ON : Push button is ON in the driver door handle.
FR TOGGLE SW
 ON : Push button is ON in the assist door handle.
TRUNK/TAIL GATE SW
 ON : Tailgate button is ON.
GEAR P POSITION
 ON : Shift lever is P position.
IGN 1
 ON : IGN switch is IG position.
ACC
 ON : IGN switch is ACC position.
PUSH KNOB SW
 ON : Push knob switch is ON.
EXTERNAL BUZZER
 ON : Buzzer is ON.

Communication Diagnosis With Scan Tool (Self Diagnosis)
1.
Communication diagnosis checks that the each linked components operates normal.
2.
Connect the cable of scan tool to the data link connector in driver side crash pad lower panel.
3.
After IG ON, select the "SELF DIAGNOSIS".

Antenna Actuation Diagnosis
1.
Connect the cable of scan tool to the data link connector in driver side crash pad lower panel.
2.
After IG ON, select the "ACTUATION TEST".

3.
Set the smart key near the related antenna and operate it with a scanner.

4.
If the LED of smart key is blinking, the smart key is normal.
5.
If the LED of smart key is not blinking, check the voltage of smart key battery.
6.
Antenna actuation
A.
INTERIOR Antenna 1
B.
INTERIOR Antenna 2
C.
INTERIOR Antenna 3
D.
BUMPER/ TAIL GATE Antenna
E.
DRV_DR Antenna
F.
AST_DR Antenna
Antenna Status Check
1.
Connect the cable of scan tool to the data link connector in driver side crash pad lower panel.
2.
Select the "07.Status Check".
3.
After IG ON, select the "03.Antenna Status Check".

4.
Set the smart key near the related antenna and operate it with a scanner.

5.
If the smart key runs normal , the related antenna, smart key(transmission, reception)and exterior receiver are normal.
6.
Antenna status
A.
INTERIOR Antenna 1
B.
INTERIOR Antenna 2
C.
INTERIOR Antenna 3
D.
BUMPER/ TAIL GATE Antenna
E.
DRV_DR Antenna
F.
AST_DR Antenna
Serial Communication Status Check
1.
Connect the cable of scan tool to the data link connector in driver side crash pad lower panel.
2.
Select the "Status Check".

3.
After IG ON, select the "SRx COMM. LINE Status Check".

4.
Check the serial communication line with a scanner.
5.
If the smart key runs normal, the communication of smart key unit, exterior receiver and MSL(Mechatronic Steering column Lock) are normal.
6.
If the smart key runs abnormal, check the following items.
A.
Disconnection or no response of the exterior receiver communication line.
B.
The exterior receiver communication line disconnection and ground connection.
C.
The MSL disconnection or no response
D.
The MSL disconnection and ground connection
Interior Antenna Actuation Check
1.
Set the smart key in the following shade area and check the IG ON.

2.
If the ignition is ON, the antenna runs normal.
3.
Check the interior antenna ignition mode.
4.
Set the smart key in the following shade area and actuate the antenna. Check the LED of smart key is blinking.

5.
If the LED of smart key is not blinking, check the antenna in shade area.

Replacement
Starting After Replacing
Starting is possible by following process after replacing new smart key unit or MSL.
1.
If IG OFF is done in P, IG ON will not be impossible because the MSL is locked.
A.
If press a push knob switch twice in 3 seconds, IG ON will be done because MSL is unlocked.
2.
Immobilizer lamp is ON after inserting a smart key.
A.
If press a push knob switch twice in 3 seconds, IG ON will be done because MSL is unlocked.
-
Starting is impossible when the lamp is not ON after inserting a smart key.
-
Even if the solenoid is unlocked by pressing the brake pedal 3 times, check the steering column whether or no it is unlocked.