Hyundai Elantra CN7: AVN System

Seventh generation (CN7; 2021–2024) / Hyundai Elantra CN7 2021-2024 Workshop Manual / Body Electrical System / AVN System

Description and operation

Description

AVN System

The AVN system has improved information search and easiness of manipulation for the driver by simplifying the system operation experience and unifying the display of the user information such as multimedia and car information.

The system is basically composed of a keyboard for the operation of combined function, LCD monitor, a head unit with Bluetooth handsfree calling, voice recognition and navigation, music amplifier and the media unit that connects with other outside devices.

1.	Simplification of user interface : the multimedia and car information are displayed on the monitor.

2.	Networked electronic parts : Efficient information transmission through CAN communications.

Up-to-date technologies integrated :

•	Voice recognition : This function recognizes the user's voice commands to manipulate the system. The user can issue voice commands to operate AV system, Bluetooth phone and navigation and connect to Cubis call center.

•	Bluetooth hands-free calling : This is compliant with the international wireless communication standards and uses bluetooth technology adopted in most currently launched mobile phones. Once connected, the driver is automatically connected every time he/she gets in the car.

•	USB connectivity : Outside music player devices such as USB memory stick or Walkman can be connected and played with the car speakers.

System Block Diagram

•	B-CAN : Body Controller Area Network

•	MM-CAN : Multi-Media Controller Area Network

Limitations of the Navigation System

GPS Signal Reception State

As the GPS satellite frequency is received/transmitted in straight lines, reception may not work if hiding devices are placed on or near the GPS antenna or when traveling through the following locations.

•

Tunnels

•	Basement parking structures

•	Underneath an overpass

•	Roads within forested areas

•	Areas near high rise buildings

•	Roads within canyons

Vehicle Position Display

1.	If multipass errors occur due to reflections from buildings or related causes, the current position mark on the navigation may differ from the actual position of the vehicle.

The position of the vehicle on the navigation may be different from the actual position if the vehicle is under the occur, driving for a short period of time will vehicle through map matching or GPS information (several minutes may be necessary in certain cases).

•	When driving on a Y-shaped road with a narrow angle, the current position may be displayed in the opposite direction.

•	If the vehicle is loaded onto a car transport vehicle, the current position mark may be stalled on the last position prior to loading.

•	When driving on a spiral-shaped road.

•	When driving in mountain regions with sharp turns or sudden brakes.

•	When entering a road after having been in an underground parking structure, building parking structure, or turnable with many rotations.

•	When the tires have recently been replaced (Especially upon use of spare or studless tires)

•	If the battery terminal is removed.

•	When driving in city streets, the current position may be displayed on the opposite side or on an off-road position.

•	When changing the zoom level from the maximum zoom in level to a different zoom level, the current position mark may be displayed on a different road.

•	When driving in heavy traffic with frequent go · stops in traffic or intersections.

•	When driving under slippery conditions, such as heavy sand, snow, etc.

•	When driving with the tire chain in place.

•	When using a tire with an incorrect size specification.

•	When the tire pressure for the 4 tires are different.

•	When the replacement tire is a worn or used tire (Especially studless tires having passed a 2nd seasons, etc.)

•	When driving near high-rise buildings

•	If a roof carrier has been installed

•	When driving under high speeds or having calculated a long-distance route.

Route Guidance

Suitable route guidance may not occur caused by search conditions or the driving position.

•	Guidance to go straight may be given while driving on a straight road.

•	Guidance may not be given even when having turned at an intersection.

•	There are certain intersections in which guidance may not occur.

•	A route guidance signaling entrance into a no enter zone may occur (No enter zone, road under construction, etc.)

•	Guidance may be given to a position removed from the actual destination if roads to reach the actual destination do not exist or are too narrow.

•	Faulty voice guidance may be given if the vehicle breaks from the designated route (ex : if a turn is made at an intersection while the navigation provided guidance to go straight).

•	Map Data may be missing or incorrect causing route guidance to not be given.

Route Re-calculation

The following phenomena may occur after conducting route recalculation.

•	Guidance may be given to a position differing from the current position when turning at an intersection.

•	Route recalculation may take a longer period of time when driving under high speeds.

•	A route guidance signaling for a U-Turn in a No U-Turn location may occur.

•	A route guidance signaling entrance into a no enter zone may occur (No enter zone, road under construction, etc).

•	Guidance may be given to a position removed from the actual destination do not exist or are too narrow.

•	Faulty voice guidance may be given if the vehicle breaks from the designated route (ex : if a turn is made at an intersection while the navigation provided guidance to go straight)

Components and components location

Component Location

1. AVN head unit
2. Crash pad antenna
3. Bluelink keyboard & Hands-free mic (Built-in overhead console)
4. Steering wheel remote control

5. Roof antenna
6. USB jack
7. External amplifier (Option)

AVN(Audio Video Navigation) head unit

Components and components location

Components

Middle East

Connector Pin Information

No	Connector A (Int AMP)	Connector A (Ext AMP)	Connector B
1	Rear left speaker (+)	-	-
2	Reart left speaker (-)	-	MIC Signal (+)
3	-	AMP Navi Voice (+)	-
4	-	AMP SPDIF (HI)	-
5	-	-	Antenna Powr
6	Camera Power	Camera Power	ILL (+)
7	Camera Video	Camera Video	MM CAN (HI)
8	-	-	-
9	-	-	-
10	-	-	B+
11	-	-	B+
12	Steering wheel remote	Steering wheel remote	GND
13	Front lift speaker (+)	-	GND
14	Front lift speaker (-)	-	MIC GND
15	Front right speaker (-)	-	MIC Signal (-)
16	Front right speaker (+)	-	-
17	-	AMP Navi Voice (-)	-
18	-	AMP SPDIF (LOW)	-
19	-	AMP SPDIF GND	-
20	Camera Power GND	Camera Power GND	MM CAN (LOW)
21	Camera Video GND	Camera Video GND	-
22	-	-	ACC
23	-	-	-
24	-	-	-
25	-	-	-
26	Steering wheel remote GND	Steering wheel remote GND	-
27	Rear right speaker (-)	-	-
28	Rear right speaker (+)	-	-
29	-	-	-
30	-	-	-
31	-	-	-
32	-	-	-
33	Camera shield ground	-	IGN 1
34	-	-	-
35	-	-	-
36	-	-
37	-	-
38	Speed	Speed

General

Connector Pin Information

No	Connector A (Ext AMP)	Connector B	Connector C
1	-	-	-
2	-	MIC Signal (+)	I-CAN (HI)
3	AMP Navi Voice (+)	-	-
4	AMP SPDIF (HI)	-	-
5	-	-	-
6	Camera Power	ILL (+)	-
7	Camera Video	MM CAN (HI)	-
8	-	-	-
9	-	-	I-CAN (LOW)
10	-	B+	-
11	USB Detect	B+	-
12	Steering wheel remote	GND	-
13	-	GND	-
14	-	-	-
15	-	MIC Signal (-)	-
16	-	-	MTS Key
17	AMP Navi Voice (-)	-	-
18	AMP SPDIF (LOW)	-	-
19	AMP SPDIF GND	ILL (-)	-
20	Camera Power GND	MM CAN (LOW)	-
21	Camera Video GND	-	-
22	-	ACC
23	-	-
24	-	Front monitor power
25	-	-
26	Steering wheel remote GND	-
27	-	-
28	-	-
29	-	-
30	-	-
31	-	-
32	-	-
33	Camera shield ground	IGN 1
34	-	-
35	-	Front monitor power ground
36	-
37	-
38	Speed

Repair procedures

Removal

•	Take care not to scratch the cluster fascia panel and related parts.

•	Wrap the protective tape on the tool to disassemble with the screwdriver or remover.

•	Use caution in keeping and handling during disassembling/assembling because it is easily contaminated with lubricant and oil.

1.	Disconnect the negative (-) battery terminal.

2.	When removing with a flat-tip screwdriver or remover, remove the steering column shroud upper panel (A).

3.	When removing with a flat-tip screwdriver or remover, remove the floor console side garnish (A).

4.	When removing with a flat-tip screwdriver or remover, remove the crash pad garnish[CTR] (A).

5.	Remove the heater & A/C control unit. (Refer to Heating, Ventilation and Air Conditioning - "Heater & A/C Control Unit (DATC)") (Refer to Heating, Ventilation and Air Conditioning - "Heater & A/C Control Unit (Manual)")

6.	Remove the AVN head unit (A) after loosening mounting screws.

7.	Remove the AVN head unit connectors and cables (A).

Installation

1.	Install the AVN head unit.

2.	Install the heater & A/C control unit.

3.	Install the crash pad garnish[CTR].

4.	Install the floor console side garnish.

5.	Install the steering column shroud upper panel.

Disconnect the negative (-) battery terminal.

•	Make sure that the cables and connectors are plugged in properly.

•	Check the AVN system for normal operation.

External AMP

Components and components location

Components

NO	Connector A	NO	Connector B
1	BATT (+)	1	Subwoofer 2 (+)
2	BATT (+)	2	Subwoofer 1 (+)
3	BATT (+)	3	Sub woofer speaker (+)
4	BATT (+)	4	-
5	-	5	-
6	Multimedia CAN (High)	6	-
7	Multimedia CAN (Low)	7	Navigation voice (+)
8	ACC	8	-
9	-	9	-
10	-	10	-
11	-	11	-
12	-	12	Rear door speaker - RH (+)
13	-	13	Rear door speaker - LH (+)
14	-	14	Center speaker (+)
15	-	15	-
16	Ground	16	Front door tweeter speaker - RH (-)
17	Ground	17	Front door tweeter speaker - LH (-)
18	Ground	18	Sub woofer speaker (-)
19	Ground	19	-
20	SPDIF (High)	20	-
21	SPDIF (Low)	21	Navigation voice (+)
22	SPDIF GND	22	-
23	-	23	-
24	IGN 1	24	-
25	-	25	Rear door speaker - RH (-)
26	-	26	Rear door speaker - LH (-)
27	-	27	Center speaker (+)
28	-	28	-

Repair procedures

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Open the trunk, remove the right luggage side trim. (Refer to Body - "Luggage Side Trim")

3.	Remove the external amplifier (B) after disconneting the connector (A) and loosening the mounting nuts.

Installation

1.	Install the external amplifier after connecting the connector.

2.	Install the right luggage side trim.

Connect the negative (-) battery terminal.

•	Make sure that the cables and connectors are plugged in properly.

•	Check the AVN system.

AVN Remote Controller

Components and components location

Components

1. Left Remote Control Switch (Audio + Bluetooth)

2. Right Remote Control Switch (Cruise + Trip)

Schematic diagrams

Circuit Diagram

[Without paddle shift]

[With paddle shift]

[Audio + B/Tooth]

[Audio + B/Tooth + Voice]

[Trip]

[Trip / Cruise]

[Trip + Cruise + LFA)

[Trip + Cruise + LFA + MSLA)

[Trip + Smart Cruise + LFA)

[Trip + Smart Cruise + LFA + MSLA)

Repair procedures

Inspection

Check for resistance between terminals in each switch position (LH).

[LH : Audio + Hands free]

Switch	Resistance (±5%)
SEEK Up	430 Ω
SEEK Down	1.11 kΩ
MODE	2.11 kΩ
MUTE	3.11 kΩ
Volume (+)	4.61 kΩ
Volume (-)	6.81 kΩ
Voice	10.71 kΩ
SEND	18.91 kΩ
END	40.91 kΩ

Check for resistance between terminals in each switch position (RH).

[Cruise]

Switch	Resistance (±3%)
Paddle shift (Up)	390 Ω
Cruise CANCEL	610 Ω
Cruise SET&Speed down	910 Ω
Cruise RES&Speed up	1.38 kΩ
Cruise ON/OFF	2.13 kΩ
Cruise speed limit ON/OFF	3.63 kΩ
SCC distance adjustment	7.63 kΩ

[Trip]

Switch	Resistance (±3%)
Paddle shift (Down)	390 Ω
Trip group/Trip	610 Ω
Trip (Up)	910 Ω
Trip (Down)	1.38 kΩ
OK	2.13 kΩ
BACK	3.63 kΩ
LFA	7.93 kΩ

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Remove the steering wheel assembly. (Refer to Steering System - "Steering Wheel")

3.	Remove the steering back cover (A).

4.	Remove the steering remote control connector (A).

5.	Remove the steering remote control switch (A) after loosening the screws.

Installation

1.	Install the steering wheel remote control after connecting the connector.

2.	Install the steering wheel.

3.	Connect the negative (-) battery terminal.

AVN Antenna

Components and components location

Components

Repair procedures

Removal

Roof Antenna

1.	Disconnect the negative (-) battery terminal.

2.	Remove the roof trim. (Refer to Body - "Roof Trim Assembly")

3.	Disconnect the roof antenna connector (A).

4.	Remove the roof antenna (A) after loosening a nut (B).

Crash Pad Antenna

1.	Disconnect the negative (-) battery terminal.

2.	Remove the main crash pad assembly. (Refer to Body - "Main Crash Pad Assembly")

3.	Loosen the mounting screws and then remove the crash pad antenna (A).

Installation

Roof Anenna

1.	Connect the roof antenna connectors.

Install the roof trim assembly.

•	Make sure that the cables and connectors are plugged in properly.

•	Check the audio system.

Crash Pad Antenna

1.	Connect the roof antenna connectors and install the roof antenna.

2.	Install the main crash pad assembly.

Speaker

Repair procedures

Inspection

Troubleshooting for Speaker

(1)	Basic inspection of speaker Inspect the sound from speaker after verifying that the speaker mounting screws is removed and the wiring connector is connected precisely to remove vibration transmitted from body trims and surrounding parts.

(2)

Case Troubleshooting

Case

Inspection/Remedy

Trembling sound

1)	Before replacing the speaker, inspect that the mounting screw is installed normally.

2)	After re-installing the speaker, verify that no trembling sound is heard.

3)	When hearing a trembling sound again, replace the speaker with new one.

Noise

1)	Check if the wiring connector is connected normally. If not, reconnect the wiring connector.

2)	In case of radio static, check if there is a noise from CD player.

3)	When a noise is heard on turning radio and CD on, replace the speaker with new one.

•	In case there is only radio static, this causes from poor radio reception. Thus the speaker needs no repair and replacement.

Poor working

Inspection of the wiring connection between the battery and the speaker

1)	Before replacing the speaker, inspect the wiring and connections in the speaker circuit.

2)	Check the supplying power to the speaker and the resistance, and then inspect the sound quality.

3)	If the speaker works poorly, replace it with new one.

•	During dealing of speaker

•	Dropping or rough handling of the speaker can cause damage.

•	Be careful not to cover water and oil over the speaker.

•	Caution during dealing of speaker because the material of diaphragm is paper which is easy to be torn by impact and external force.

•	When modifying audio system as customer pleases, this does electric damage to speaker.

•	And, in this case the speakers are not covered by the manufacturer's warranty.

Removal

[Front Door Speakers]

1.	Disconnect the negative (-) battery terminal.

2.	Remove the front door trim. (Refer to Body - "Front Door Trim")

3.	Remove the front door speaker (B) after disconnecting the connector (A) and loosening screws.

[Front Door Tweeter Speaker]

1.	Disconnect the negative (-) battery terminal.

2.	Remove the front door trim. (Refer to Body - "Front Door Trim")

3.	Remove the tweeter speaker (A) after loosening screws.

[Rear Door Speakers ]

1.	Disconnect the negative (-) battery terminal.

2.	Remove the Rear door trim. (Refer to Body - "Rear Door Trim")

3.	Remove the rear door speaker (B) after disconnecting the connector (A) and loosening screws.

[Crash Pad Center Speaker]

•	Take care not to scratch the crash pad and related parts.

1.	Using a screwdriver or remover, remove the crash pad center speaker grille (A).

2.	Remove the center speaker (A) after loosening screws.

3.	Disconnect the speaker connector (A).

[Sub Woofer Speaker]

1.	Remove the rear seat. (Refer to Body - "Rear Seat")

2.	Remove the package tray trim. (Refer to Body - "Rear Package Tray Trim")

3.	Remove the sub woofer speaker (A) after disconnect the connector(B) and loosening the bolts.

Installation

Front Door Speaker

1.	Install the front door speaker.

2.	Install the front door trim.

Rear Door Speaker

1.	Install the rear door speaker.

2.	Install the rear door trim.

Crash Pad Center Speaker

1.	Install the center speaker.

2.	Install the center speaker grille.

Subwoofer Speaker

1.	Install the subwoofer speaker.

2.	Install the rear package tray and rear seat.

•	Make sure the speaker connectors are plugged in properly.

USB Jack

Description and operation

Description

The multimedia jack on the console upper cover is for customers who like to listen to external portable music players like the MP3 etc., through the vehicle's sound system when it is linked to this jack. The customer has this added option.

In case of distortions from media connected to the AUX source, the audio unit may not be defective but the output level of the used media does not match the specification of the AUX input.

Schematic diagrams

Circuit Diagram

Repair procedures

Removal

1.	Disconnect the battery (-) terminals.

2.	Remove the floor console assembly. (Refer to Body - "Floor Console Assembly")

3.	Remove the UBS port assembly (A).

4.	Remove the avn head unit. (Refer to AVN System - "AVN(Audio Video Navigation) head unit")

5.	Disconect the USB connector (A).

6.	Disconect the USB connector (B). [Display Audio only]

7.	Remove the USB jack (A) after releasing the fixed hooks.

Installation

1.	Connect the USB jack connector.

2.	Install the USB jack.

3.	Install the UBS port assembly.

Mic

Repair procedures

Inspection

1.	Disconnector the negative (-) battery terminal.

2.	Remove the overhead console lamp. (Refer to Body Electrical System - "Overhead Console Lamp")

3.	Remove the overhead console cover after loosening the screws.

4.	Check the continuity of between terminals.

Front monitor

Components and components location

Components

Repair procedures

Removal

10.25" Cluster + 10.25" Monitor

•	Take care not to scratch the crash pad and related parts.

•	When removing with the screwdriver or remover, wrap the protective tape on the tools.

•	Be careful to store and handle the crash pad when removing/installing because lubricant and oil can leave a stain on the trim.

1.	Disconnect the negative (-) battery terminal.

2.	Using a flat-tip screwdriver or remover, remove the photo sensor cover (A).

3.	Disconnect photo sensor connector and security sensor connector (A).

4.	Using a flat-tip screwdriver or remover, remove the cluster fascia upper garnish (A).

5.	Remove the AVN monitor (A) after loosening mounting screws.

6.	Remove the AVN monitor after disconnecting cluster connectors and monitor connectors.

4.25" Cluster + 10.25" Monitor

1.	Disconnect the negative (-) battery terminal.

2.	Using a flat-tip screwdriver or remover, remove the photo sensor cover (A).

3.	Disconnect photo sensor connector and security sensor connector (A).

4.	Using a flat-tip screwdriver or remover, remove the cluster fascia upper garnish (A).

5.	Remove the cluster fascia side panel (A).

6.	Remove the cluster fascia panel (A) after loosening mounting screws.

7.	Remove the AVN monitor (A) after loosening mounting screws.

8.	Remove the AVN monitor after disconnecting monitor connectors.

Installation

10.25" Cluster + 10.25" Monitor

1.	Install the AVN monitor after connecting cluster connectors and monitor connectors.

2.	Install the cluster fascia upper garnish.

3.	Install photo sensor cover.

Connect the negative (-) battery terminal.

•	Make sure that the cables and connectors are plugged in properly.

•	Check the AVN system for normal operation.

4.25" Cluster + 10.25" Monitor

1.	Install the AVN monitor after connecting cluster connectors and monitor connectors.

2.	Install the cluster fascia panel.

3.	Install the cluster fascia side panel.

4.	Install the cluster fascia upper garnish.

5.	Install photo sensor cover.

Connect the negative (-) battery terminal.

•	Make sure that the cables and connectors are plugged in properly.

•	Check the AVN system for normal operation.

Audio

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