Hyundai Elantra AD: Audio - Body Electrical System - Hyundai Elantra AD 2017-2020 Service ManualHyundai Elantra AD: Audio

Specifications

Specifications
Audio

Items
Audio
Model
TFT/MONO/DISPLAY
Power supply
DC 14.4V
Parasitic current
Max. 1mA (Head unit only)
Antenna
80PF 75?
Tuning type
PLL SYNTHESIZED TUNING

Components and Components Location

Component Location

1. Audio unit
2. Feeder cable joint connector
3. Center speaker
4. Glass antenna amplifier
5. Front door speaker
6. Rear door speaker
7. Sub woofer speaker
8. Antenna feeder cable
9. Tweeter speaker

Audio Unit Components and Components Location

Components
[TFT Type]

Connector Pin Information
No
Connector A
Connector B
Connector C
1
Rear left speaker (+)
Can (High)
-
2
Front left speaker (+)
-
-
3
Front right speaker (+)
-
Camera GND
4
Rear right speaker (+)
Steering wheel remote
Camera video input
5
-
-
-
6
-
USB D (+)
-
7
-
USB VDD
-
8
Illumination (+)
AUX Right input
-
9
Detent
AUX GND
-
10
Rear left speaker (-)
Mic (+) (Bluetooth)
Camera power (+)
11
Front left speaker (-)
ACC
Camera GND (-)
12
Front right speaker (-)
B+
-
13
Rear right speaker (-)
Can (Low)
-
14
-
-
-
15
-
-
-
16
-
Vehicle Speed
-
17
Illumination (-)
Steering wheel remote GND

18
Remote antenna
USB D (-)
19

USB GND
20
AUX DETECT
21
AUX Left input
22
Mic (-) (Bluetooth)
23
-
24
GND

[MONO Type]

Connector Pin Information
No
Connector A
Connector B
1
Rear left speaker (+)
CAN High
2
Front left speaker (+)
-
3
Front right speaker (+)
-
4
Rear right speaker (+)
Steering wheel remote
5
-
-
6
-
USB D (+)
7
-
USB VDD
8
Illumination (+)
AUX Right input
9
-
AUX GND
10
Rear left speaker (-)
Mic (+) (Bluetooth)
11
Front left speaker (-)
ACC
12
Front right speaker (-)
B+
13
Rear right speaker (-)
CAN Low
14
-
-
15
-
-
16
-
Vehicle Speed
17
Illumination (-)
Steering wheel remote GND
18
Remote antenna
USB D (-)
19

USB GND
20
AUX DETECT
21
AUX Left input
22
Mic (-) (Bluetooth)
23
-
24
GND

[Display Audio]

Connector Pin Information
No
Connector A
Connector B
Connector C
1
Rear left speaker (+)
-
Body can (+)
2
Rear left speaker (-)
Mic (+) B/T
Chassis can(+)
3
-
-
-
4
-
-
-
5
-
Antenna remote
-
6
Camera power
Illumination (+)
-
7
Camera video (Y)
MM Can (+)
-
8
-
-
Body can (-)
9
-
-
Chassis can (-)
10
AUX R
Battery (+)
-
11
AUX Detect
Battery (+)
-
12
Steering wheel remote
GND
-
13
Front left speaker (+)
GND
-
14
Front left speaker (-)
Mic GND
-
15
Front right speaker (-)
Mic (-) B/T
-
16
Front right speaker (+)
-
MTS Key input
17
-
-
-
18
-
-
-
19
-
Illumination (-)
-
20
Camera GND
MM Can (-)
-
21
Camera video GND
Camera video (Y) GND
-

22
-
ACC
23
-
-
24
AUX L
-
25
AUX GND
-
26
Steering wheel remote GND
-
27
Rear right (-)
-
28
Rear right (+)
-
29
-
-
30
-
-
31
-
-
32
-
-
33
-
IGN 1
34
-
-
35
-
-
36
-

37
-
38
Speed

Audio Unit Repair procedures

Removal
1. Disconnect the negative (-) battery terminal.
2. Remove the center fascia panal.

(Refer to Body - "Center Fascia Panal")

3. Remove the audio head unit (A) after loosening the screws.

4. Remove the audio head unit after disconnecting the connectors and cable (A).

  
When the compact disc is not ejected, do not remove it forcibly.
Installation
1. Connect the audio unit connectors and cable.
2. Install the audio head unit.
3. Install the center fascia panal.
4. Connect the negative (-) battery terminal.
  
A. Make sure the connector are connected in properly.
B. Check the audio system.

Speakers Repair procedures

Inspection
1. 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

No
Case
Inspection/Remedy
1
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.
2
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.
3
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 the 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 the 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 the 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 disconnect the connector and loosening the screws.

[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 and loosening the bolts.

Installation
Front Door Speaker
1. Install the front door speaker.
2. Install the front door trim.
3. Connect the negative (-) battery terminal.
Front Door Tweeter Speakers
1. Install the front door tweeter speaker.
2. Install the front door trim.
3. Connect the negative (-) battery terminal.
Rear Door Speaker
1. Install the rear door speaker.
2. Install the front door trim.
3. Connect the negative (-) battery terminal.
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.

Antenna Repair procedures

Inspection
Glass Antenna Test
1. Wrap aluminum foil (A) around the tip of the tester probe (B) as shown.

2. Touch one tester probe to the glass antenna terminal (A) and move the other tester probe along the antenna wires to check that continuity exists.

Glass Antenna Repair
  
To make an effective repair, the broken section must be no longer than one inch.

1. Lightly rub the area around the broken section (A) with fine steel wool, and then clean it with alcohol.

2. Carefully mask above and below the broken portion of the glass antenna wire (B) with cellophane tape (C).
3. Using a small brush, apply a heavy coat of silver conductive paint (A) extending about 1/8?on both sides of the break. Allow 30 minutes to dry.
  
Thoroughly mix the paint before use.

4. Check for continuity in the repaired wire.
5. Apply a second coat of paint in the same way. Let it dry three hours before removing the tape.
Glass Antenna Circuit Inspection
1. Remove the rear pillar trim.

(Refer to Body - "Rear Pillar Trim")

2. Disconnect the antenna amp power connector from the glass antenna amp (A).

3. Turn the radio ON.

Measure the voltage between terminals of the antenna amp power connector (A) and body ground (B).


OK : approximately 12V (ACC+)

4. Check for radio antenna wire resistance between terminals of the antenna connector (A) and body ground (B).
(1) AM antenna (RH side rear pillar)

Standard value : 125k? ~ 165k?

Short : Approx. 0?

Open : ? ?

(2) FM1/FM2 antenna (RH side rear pillar)

Standard value : 80k? ~ 120k?

Short : Approx. 0?

Open : ? ?

5. Check the grid lines for continuity.
6. When a poor radio reception is not repaired through the above inspection methods, replace the amp.

If the radio reception is still poor, check the radio cable for short and radio head unit for failure.

Antenna Cable
1. Check for continuity between the center poles of antenna cable.

2. Check for continuity between the outer poles of antenna cable. There should be continuity.

3. If there is no continuity, replace the antenna cable.
4. Check for continuity between the center pole (A) of antenna cable and terminal of glass antenna (B). There should be continuity.

5. If there is no continuity, replace the antenna amplifier.
6. Check for continuity between the center pole (A) and outer pole (B) of antenna cable. There should be no continuity.

7. If there is continuity, replace the antenna cable.

Audio Remote Control Components and Components Location

Components

1. Left Remote Control Switch (Audio + Hands free)
2. Right Remote Control Switch
(Cruise+Trip Computer)

Audio Remote Control Schematic Diagrams

Circuit Diagram

[Audio + B/Tooth + Voice]

[Trip]

[Trip / Cruise]

[Trip / Cruise/ Smart Cruise]

Audio Remote Control Repair procedures

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

[LH : Audio + Hands free]
Switch
Connector
terminal
Resistance
(±5%)
SEEK Up
2-5
430 ?
SEEK Down
1.11 k?
MODE
2.11 k?
MUTE
3.11 k?
Volume (+)
4.61 k?
Volume (-)
6.81 k?
Voice
10.71 k?
SEND
18.91 k?
END
40.91 k?

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

[RH : Trip + Cruise]
Switch
Connector
terminal
Resistance
(±5%)
Cancel
2-5
330 ?
SET -
550 ?
RES +
880 ?
Cruise ON/OFF
1.44 k?
Group
3-5
550 ?
Trip Up
880 ?
Trip Down
1.44 k?
ENTER
2.54 k?
SCC ON / OFF
5.54 k?

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 after loosening the screws.

Installation
1. Install the steering wheel remote control after connecting the connector.
2. Connect the negative (-) battery terminal.

Multimedia Jack Schematic Diagrams

Circuit Diagram

Multimedia 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.

Multimedia Jack Repair procedures

Removal
1. Disconnect the battery (-) terminals.
2. Remove the floor console assembly.

(Refer to Body - "Floor Console Assembly")

3. Remove the multimedia jack (A) from the console under cover after releasing the fixed hooks (B).

Installation
1. Connect the multimedia jack connector.
2. Install the multimedia jack.
3. Install the floor console assembly.
Horn
Components and Components Location Component Location 1. Horn switch 2. Horn relay (Built - in PCB Block) 3. Horn (Low pitch) 4. Horn (High pitch) 5. Clock ...