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# Kia Soul EV: Smart Key System / Smart Key Diagnostic Repair procedures

Kia Soul EV (PS EV) 2015-2020 Service Manual / Body Electrical System / Smart Key System / Smart Key Diagnostic Repair procedures

Inspection

Self Diagnosis With GDS
Smart key system defects can be quickly diagnosed with the GDS. GDS quickly operates actuator to monitor input/ouput values and self diagnose.
The followings are the major problems in SMART KEY system.

1. | Problem in SMART KEY unit input.

2. | Problem in SMART KEY unit.

3. | Problem in SMART KEY unit output.

The following three diagnostic solutions will be the main solution process to a majority of concerns.

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 GDS to the data link connector in driver side crash pad lower panel and turn the power on 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. | This menu shows you the status of each switch on scanner after it''s been connected to the "current data" process.
Display | Description
FL Toggle switch | ON : Push button is ON in the driver door handle.
FR Toggle switch | ON : Push button is ON in the assist door handle.
Trunk switch | ON : Trunk 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 switch | ON : Push knob switch is ON.
External Buzzer | ON : Buzzer is ON.

Communication Diagnosis With GDS (Self Diagnosis)

1. | Communication diagnosis checks for normal operation in each component.

2. | Connect the cable of 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 GDS 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 corresponding antenna and operate it using 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
– | Trunk antenna
– | BUMPER/Antenna
– | DRV_DR Antenna
– | AST_DR Antenna

Antenna Status Check

1. | Connect the cable of 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 corresponding antenna and operate it using GDS.

5. | If the smart key operates normally, it means that the corresponding antenna, smart key (transmission & reception) and exterior receiver are also normal.

6. | Antenna status
– | INTERIOR Antenna
– | Trunk antenna
– | BUMPER/Antenna
– | DRV_DR Antenna
– | AST_DR Antenna

Serial Communication Status Check

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

2. | Select the "Serial Communication Line Check".

3. | After IGN ON, select the "Receiver Communication Line Check".

4. | Check the serial communication line with a GDS.

5. | If the smart key operates normally, it means that the communication of smart key unit and exterior receiver are also normal.

6. | In case of abnormal operation of smart key, check the following items:
– | Disconnected or not responding exterior receiver communication line
– | The exterior receiver communication line disconnection and ground connection.

Interior Antenna Actuation Check

1. | Set the smart key in the following shaded area and check that the IG is ON.

2. | If the ignition is ON, the antenna runs normally.

3. | Check the interior antenna ignition mode.

4. | Set the smart key in the following shaded area and actuate the antenna. Check that the LED of smart key is blinking.

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

FOB Status Check

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

2. | After IGN ON, select the "FOB KEY STATUS INFORMATION".

Smart Key Status Check

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

2. | After IGN ON, select the "SMK STATUS INFORMATION".

Neutralization Status Check

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

2. | After IGN ON, select the "Neutralization mode".

Input Signal List

No. | Item name | Unit
1 | SSB SW1 | -
2 | SSB SW2 | -
3 | ACC | -
4 | IGN1 | -
5 | IGN2 | -
6 | Gear ''P'' Position (A/T) Clutch SW (M/T) | -
7 | Brake SW | -
8 | FL Door Lock Button | -
9 | FR Door Lock Button | -
10 | Battery Voltage | -
11 | Wheel Speed | -
12 | RPM | -
13 | Stop Lamp Fuse | -
14 | Start Feed Back | -

Actuator List

No. | Item name | Condition
1 | Immobilizer indicator Lamp (Cluster) | Ignition switch ON Engine off
2 | External Buzzer | Ignition switch ON Engine off
3 | Interior Antenna Active | Ignition switch ON Engine off
6 | Bumper/trunk Antenna Active | Ignition switch ON Engine off
7 | DRV_DR Antenna Active | Ignition switch ON Engine off
8 | AST_DR Antenna Active | Ignition switch ON Engine off
9 | SSB Illumination (OFF/ACC/ON) | Ignition switch ON Engine off
10 | ACC/IGN1/IGN2 Relay | Ignition switch ON Engine off

##### Smart Key Unit Repair procedures

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