Hyundai Santa Fe: Seat Electrical / Inspection

Hyundai Santa Fe (TM) 2019-2024 Service Manual / Body Electrical System / Seat Electrical / Inspection

Inspection
Basic Inspection
1.
Basic inspection is performed as follows.
(1)
Check indicator after entering self - diagnosis mod.
(2)
Check battery terminals and state of charge.
(3)
Check fuses and relays.
(4)
Make sure that the connectors are connected securely.
(5)
Check the connectors and wiring for damage.
Diagnostic With Diagnostic Tool
1.
The body electrical system can be more quickly diagnosed for problems by using the diagnostic tool (Refer to "DTC guide").
- Diagnosis contents may be different for each vehicle type.
(1)
Self diagnosis : Inspection and display failed code (DTC)
(2)
Sensor data : Checks the system input/output values
(3)
Forced operation : Checking the system operation condition
(4)
Additional function : Controlling other features including system option setting and zero point adjustment
  
•
Disconnected : Open Load display
•
Short : Short display
•
Normal : None display
Self-Diagnosis Mode
You can check whether the heater & air ventilated seats are operating normally through the self-diagnosis mode.
1.
Self-diagnosis mode is entered through the operation of the seat heater switch.
2.
Enter the self-diagnostic mode by referring to the description below.
(1)
IGN1 ON
(2)
Press and hold the seat heater switch for more than 3 seconds.
(3)
Release the hand and press the switch again within 3 seconds for 1.5 to 3 seconds.
(4)
Again within 3 seconds, hold the switch for more than 3 seconds to enter the self-diagnosis mode.
(5)
When entering the self-diagnostic mode, the switch indicator blinks once.
  
•
Up to 2 fault codes can be output, and when 2 fault codes are detected, each fault code is sequentially repeated with a cycle of 2 seconds.
•
The fault details can be checked through the self-diagnosis mode in the same way for both the 1st and 2nd row seats.
•
The shape of the heater & air ventilated seat switch can be applied differently depending on the vehicle model and options.
[3-level heater & air ventilated seat]

[2-level heater & air ventilated seat]
3.
Check the details of the fault according to the blinking and lighting status of the indicator after entering the self-diagnosis mode.
[Heater seat - when applying 3 level / 3 pin indicator output]
Indicator
Fail content
Fail description
Remarks
Low
Mid
High
ILLUMINATE
 ON
 OFF
 NTC / Heater Mat Disconnection detection
 Cushion / Back Heater Mat Disconnection
 -
NTC(+) Wiring Disconnection
 -
NTC(-) Wiring Disconnection
 -
Heater(+) Wiring Disconnection
 -
Heater(-) Wiring Disconnection
 -
ILLUMINATE
 ON
 OFF
 NTC / Heater Mat Short Circuit detection
 NTC(+) / NTC(-) Short Circuit
 -
OFF
 ON
 ILLUMINATE
 NTC(+) / Heater(+) Short Circuit
 -
ILLUMINATE
 ON
 OFF
 NTC(+) / Heater(-) Short Circuit
 -
Heater(+) / Heater(-) Short Circuit
 -
Heater(+) / NTC(-) Short Circuit
 When NTC protection circuit is applied, Low : OFF / Mid : ON / High : ILLUMINATE
NTC(+) / NTC(-) Wiring Short Circuit
 -
OFF
 ON
 ILLUMINATE
 NTC(+) / Heater(+) Wiring Short Circuit
 -
ILLUMINATE
 ON
 OFF
 NTC(+) / Heater(-) Wiring Short Circuit
 -
Heater(+) / Heater(-) Wiring Short Circuit
 -
Heater(+) / NTC(-) Wiring Short Circuit
 When NTC protection circuit is applied, Low : OFF / Mid : ON / High : ILLUMINATE
ILLUMINATE
 ON
 ILLUMINATE
 Target Temperature Not Reached Detection
 - Unsatisfactory Target Setting Temperature
 -

[Heater seat - when applying 3 level / 2 pin indicator output]
Indicator
Fail content
Fail description
Remarks
Low
Mid
High
ILLUMINATE
 ILLUMINATE
 ILLUMINATE
 NTC / Heater Mat Disconnection detection
 Cushion / Back Heater Mat Disconnection
 -
NTC(+) Wiring Disconnection
 -
NTC(-) Wiring Disconnection
 -
Heater(+) Wiring Disconnection
 -
Heater(-) Wiring Disconnection
 -
ILLUMINATE
 ILLUMINATE
 OFF
 NTC / Heater Mat Short Circuit detection
 NTC(+) / NTC(-) Short Circuit
 -
ILLUMINATE
 ILLUMINATE
 ILLUMINATE
 NTC(+) / Heater(+) Short Circuit
 -
ILLUMINATE
 ILLUMINATE
 OFF
 NTC(+) / Heater(-) Short Circuit
 -
Heater(+) / Heater(-) Short Circuit
 -
Heater(+) / NTC(-) Short Circuit
 When NTC protection circuit is applied, Low : ILLUMINATE / Mid : ILLUMINATE / High : ILLUMINATE
NTC(+) / NTC(-) Wiring Short Circuit
 -
ILLUMINATE
 ILLUMINATE
 ILLUMINATE
 NTC(+) / Heater(+) Wiring Short Circuit
 -
ILLUMINATE
 ILLUMINATE
 ILLUMINATE
 NTC(+) / Heater(-) Wiring Short Circuit
 -
Heater(+) / Heater(-) Wiring Short Circuit
 -
Heater(+) / NTC(-) Wiring Short Circuit
 When NTC protection circuit is applied, Low : ILLUMINATE / Mid : ILLUMINATE / High : ILLUMINATE
ILLUMINATE
 OFF
 OFF
 Target Temperature Not Reached Detection
 Unsatisfactory Target Setting Temperature
 -

[Heater seat - when applying 2 level]
Indicator
Fail content
Fail description
Remarks
Low
High
OFF
 ILLUMINATE
 NTC / Heater Mat Disconnection detection
 Cushion / Back Heater Mat Disconnection
 -
NTC(+) Wiring Disconnection
 -
NTC(-) Wiring Disconnection
 -
Heater(+) Wiring Disconnection
 -
Heater(-) Wiring Disconnection
Heater Connector Not Connected
 Applies to 2nd row seats only
ILLUMINATE
 OFF
 NTC / Heater Mat Short Circuit detection
 NTC(+) / NTC(-) Short Circuit
 -
OFF
 ILLUMINATE
 NTC(+) / Heater(+) Short Circuit
 -
ILLUMINATE
 OFF
 NTC(+) / Heater(-) Short Circuit
 -
Heater(+) / Heater(-) Short Circuit
 -
Heater(+) / NTC(-) Short Circuit
 When NTC protection circuit is applied, Low : OFF / High : ILLUMINATE
NTC(+) / NTC(-) Wiring Short Circuit
 -
OFF
 ILLUMINATE
 NTC(+) / Heater(+) Wiring Short Circuit
 -
ILLUMINATE
 OFF
 NTC(+) / Heater(-) Wiring Short Circuit
 -
Heater(+) / Heater(-) Wiring Short Circuit
 -
Heater(+) / NTC(-) Wiring Short Circuit
 When NTC protection circuit is applied, Low : OFF / High : ILLUMINATE

[Air ventilated seat - when applying 3 level]
Indicator
Fail content
Fail description
Remarks
Low
Mid
High
ON
 ILLUMINATE
 OFF
 Air Ventilated Blower Short Circuit detection
 Blower(+) / Blower(-) Short Circuit
 -
Blower(+) / Blower Speed Short Circuit
 -
Blower(-) / Blower Speed Short Circuit
 -
Blower(+) / Blower RPM Short Circuit
 Applies only when receiving motor feedback signal
ON
 OFF
 ILLUMINATE
 Blower(-) / Blower RPM Short Circuit
 Applies only when receiving motor feedback signal
Blower Speed / Blower RPM Short Circuit
 Applies only when receiving motor feedback signal
ON
 OFF
 ILLUMINATE
 Air Ventilated Blower Disconnection detection
 Blower(+) Disconnection
 -
Blower(-) Disconnection
 -
Blower Speed Signal Disconnection
 -
ON
 ILLUMINATE
 OFF
 Blower RPM Signal Disconnection
 Applies only when receiving motor feedback signal

[Air ventilated seat - when applying 2 level]
Indicator
Fail content
Fail description
Remarks
Low
High
ON
 OFF
 Air Ventilated Blower Short Circuit detection
 Blower(+) / Blower(-) Short Circuit
 -
Blower(+) / Blower Speed Short Circuit
 -
Blower(-) / Blower Speed Short Circuit
 -
Blower(+) / Blower RPM Short Circuit
 Applies only when receiving motor feedback signal
ON
 ILLUMINATE
 Blower(-) / Blower RPM Short Circuit
 Applies only when receiving motor feedback signal
Blower Speed / Blower RPM Short Circuit
 Applies only when receiving motor feedback signal
ON
 ILLUMINATE
 Air Ventilated Blower Disconnection detection
 Blower(+) Disconnection
 -
Blower(-) Disconnection
 -
Blower Speed Signal Disconnection
 -
ON
 OFF
 Blower RPM Signal Disconnection
 Applies only when receiving motor feedback signal

4.
If IGN is OFF, the fault diagnosis mode of the heater & air ventilated seat is terminated.

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