Kia Niro: Smart Key System / Smart Key Diagnostic Repair procedures

Inspection

Self Diagnosis With Scan Tool

It will be able to diagnose defects of SMART KEY system with KDS/GDS quickly. KDS/GDS 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 KDS/GDS to the data link connector in driver side crash pad lower panel, turn the power on KDS/GDS.

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.
Tailgate open 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.
Brake SW
ON : Brake switch is ON.

Communication Diagnosis With KDS/GDS (Self Diagnosis)

1.

Communication diagnosis checks that the each linked components operates normal.

2.

Connect the cable of KDS/GDS to the data link connector in driver side crash pad lower panel.

3.

After IG ON, select the "DTC".

Antenna Actuation Diagnosis

1.

Connect the cable of KDS/GDS to the data link connector in driver side crash pad lower panel.

2.

After IG ON, select the "Actation Test".

3.

Set the smart key near the related antenna and operate it with a KDS/GDS.

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

Interior Antenna 1

Interior Antenna 2

Tailgate Antenna

Bumper Antenna

Driver Door Antenna

Assist Door Antenna

Antenna Status Check

1.

Connect the cable of KDS/GDS to the data link connector in driver side crash pad lower panel.

2.

Select the "Antenna Status Check".

3.

After IG ON, select the "Antenna Status Check".

4.

Set the smart key near the related antenna and operate it with a KDS/GDS.

5.

If the smart key runs normal , the related antenna, smart key(transmission, reception) and exterior receiver are normal.

6.

Antenna status

Interior Antenna 1

Interior Antenna 2

Tailgate Antenna

Bumper Antenna

Driver Door Antenna

Assist Door Antenna

FOB Status Check

1.

Connect the cable of KDS/GDS to the data link connector in driver side crash pad lower panel.

2.

After IG ON, select the "FOB KEY STATUS INFO".

Smart Key Status Check

1.

Connect the cable of KDS/GDS to the data link connector in driver side crash pad lower panel.

2.

After IG ON, select the "SMK STATUS INFO".

Neutralization Status Check

1.

Connect the cable of KDS/GDS to the data link connector in driver side crash pad lower panel.

2.

After IG ON, select the "Neutralization mode".

Smart Key Unit Repair procedures
Removal    Put on gloves to prevent hand injuries.    ...

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