Juke F15 (2012 year). Service Repair Manual

DIAGNOSIS SYSTEM (AUDIO UNIT)

AV-13

< SYSTEM DESCRIPTION >

[AUDIO WITHOUT NAVIGATION]

With both “1” button and “5” button pressed, turn ON the audio
system.

Audio unit display shows “SERVICE MODE”.

Icons, Segments and LCD Check

All display icons and segments will be illuminated for 2 seconds.

Press the “ENTER” switch to display LCD check segments pat-
tern.

Version Check

Press the “ENTER” switch to enter version diagnostics. “Soft”
(audio software version) is displayed.

Press the “ENTER” switch again to display the “Hard” (audio
hardware version).

JSNIA2735ZZ

JSNIA2093ZZ

JSNIA2094ZZ

JSNIA2095ZZ

AUDIO UNIT

AV-15

< ECU DIAGNOSIS INFORMATION >

[AUDIO WITHOUT NAVIGATION]

ECU DIAGNOSIS INFORMATION

AUDIO UNIT

Reference Value

INFOID:0000000006414376

TERMINAL LAYOUT

PHYSICAL VALUES

JSNIA3574ZZ

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

–

Signal name

Input/

Output

(W)

(GR)

Sound signal front speaker
LH

Output

Ignition

switch

Sound output

(LG)

(W)

Sound signal rear speaker
LH

Output

Ignition

switch

Sound output

(G)

(V)

Steering switch signal A

Input

Ignition

switch

Keep pressing SOURCE
switch

0 V

Keep pressing SEEK UP
switch

0.8 V

Keep pressing SEEK
DOWN switch

1.6 V

Keep pressing

switch

2.2 V

Except for above

3.3 V

(L)

Ground

ACC power supply

Input

Ignition

switch

ACC

—

Battery voltage

(V)

Ground

Illumination signal

Input

Ignition

switch

Lighting switch is 1st or 2nd

12.0 V

Lighting switch is OFF

0 V

SKIB3609E

AV-16

< ECU DIAGNOSIS INFORMATION >

[AUDIO WITHOUT NAVIGATION]

AUDIO UNIT

(G)

(R)

Sound signal front speaker
RH

Output

Ignition

switch

Sound output

(BR)

(Y)

Sound signal rear speaker
RH

Output

Ignition

switch

Sound output

(R)

(V)

Steering switch signal B

Input

Ignition

switch

Keep pressing VOL DOWN
switch

0 V

Keep pressing VOL UP
switch

0.8 V

Keep pressing

switch

1.6 V

Except for above

3.3 V

(SB)

—

Dongle link

Input/

Output

—

(Y)

Ground

Vehicle speed signal (8-
pulse)

Input

Ignition

switch

When vehicle speed is ap-
prox. 40 km/h (25 MPH)

NOTE:
The maximum voltage varies de-
pending on the specification
(destination unit).

(BR)

Ground

Battery power supply

Input

Ignition

switch

OFF

—

Battery voltage

(B)

Ground

—

Ignition

switch

—

0 V

(B)

Ground

EQ1

—

Ignition

switch

—

0 V

(B)

Ground

EQ3

—

Ignition

switch

—

0 V

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

–

Signal name

Input/

Output

SKIB3609E

SKIA6649J

AUDIO UNIT

AV-17

< ECU DIAGNOSIS INFORMATION >

[AUDIO WITHOUT NAVIGATION]

• *1: Models with USB connection function
• *2: Models without USB connection function

(G)

Microphone signal

Input

Ignition

switch

Give a voice.

(V)

Microphone VCC

Output

Ignition

switch

—

5.0 V

Ground

Antenna amp. ON signal

Output

Ignition

switch

ACC

—

12.0 V

—

Antenna signal

Input

—

(B)

—

USB ground

—

(W)

—

USB D

−

signal

Input/

Output

—

(G)

—

USB D+ signal

Input/

Output

—

(R)

—

V BUS signal

Output

—

(Y)

(L)

AUX sound signal LH

Input

—

(BR)

(L)

AUX sound signal RH

Input

—

Shield

—

Shield

—

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

–

Signal name

Input/

Output

PKIB5037J

DIAGNOSIS AND REPAIR WORK FLOW

AV-21

< BASIC INSPECTION >

[AUDIO WITHOUT NAVIGATION]

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000006414378

OVERALL SEQUENCE

Reference 1··· Refer to

AV-33, "MODELS WITH USB CONNECTION FUNCTION : Symptom Table"

(with USB

connection function) or

AV-35, "MODELS WITHOUT USB CONNECTION FUNCTION : Symptom Table"

(with-

out USB connection function).

DETAILED FLOW

CHECK SYMPTOM

Check the malfunction symptoms by performing the following items.
• Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-

tion occurred).

• Check the symptom.

>> GO TO 2.

PERFORM DIAGNOSIS BY SYMPTOM

Perform the relevant diagnosis referring to the diagnosis chart by symptom. Refer to

AV-33, "MODELS WITH

USB CONNECTION FUNCTION : Symptom Table"

(with USB connection function) or

AV-35, "MODELS

WITHOUT USB CONNECTION FUNCTION : Symptom Table"

(without USB connection function).

>> GO TO 3.

REPAIR OR REPLACE MALFUNCTIONING PARTS

Repair or replace the malfunctioning parts.

JSNIA0669GB

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL

AV-23

< BASIC INSPECTION >

[AUDIO WITHOUT NAVIGATION]

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMI-
NAL

Description

INFOID:0000000006414379

• The audio unit is equipped with the anti-theft system.
• The audio unit operates after authenticating a fixed four-digit anti-theft code.
• After removing the battery of the audio unit, the authentication of the anti-theft code is required.

Work Procedure

INFOID:0000000006414380

POWER SWITCH ON

Turn ignition switch ON.

Turn ON the power switch of audio unit. (“CODE IN” is indicated on the display.)

>> GO TO 2.

ANTI-THEFT CODE INPUT (FOUR-DIGIT CODE)

Press the preset switch (using 1 to 4) to enter the code number.

The anti-theft code is authenticated by pressing preset switch “6”.

Is the anti-theft code authenticated ?

YES

>> END

>> GO TO 3.

REENTER ANTI-THEFT CODE INPUT (FOUR-DIGIT CODE)

When the input anti-theft code was not authenticated, anti-theft code input can be done up to 8 attempts,
counting the below operation as an attempt.

CAUTION:

• If the attempts exceed 8, “system secure Please contact dealer” is displayed and anti-theft code

input cannot be performed.

• The number of failed attempts is not reset and accumulated after any authentication.

Wait until anti-theft code entry screen is displayed.

>> GO TO 2.

Digit on the far-left

: Preset switch 1

Digit on the second from left

: Preset switch 2

Digit on the second from right

: Preset switch 3

Digit on the far-right

: Preset switch 4

Number of attempts

Control

−

“INCORRECT PIN PLEASE RE-ENTER PIN” is indicated. Press the “OK” button to back to anti-theft code
entry screen.

The operation is locked up (and the display indicates a countdown) and back to anti-theft code entry screen
for 60 minutes.

AV-24

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO WITHOUT NAVIGATION]

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT

AUDIO UNIT : Diagnosis Procedure

INFOID:0000000006414381

CHECK FUSE

Check for blown fuses.

Is inspection result OK?

YES

>> GO TO 2.

>> Be sure to eliminate cause of malfunction before installing new fuse.

CHECK POWER SUPPLY CIRCUIT

Check voltage between audio unit harness connector and ground.

Is inspection result OK?

YES

>> INSPECTION END

>> Check harness between audio unit and fuse.

Power source

Fuse No.

Battery

Ignition switch ACC or ON

Models without Intelligent Key

Models with Intelligent Key

Signal name

Audio unit

Probe

Condition

Reference value

Terminal

Connector

(+)

(

−

)

Ignition switch

Battery power supply

M128

Ground

OFF

Battery voltage

ACC power supply

ACC

MICROPHONE SIGNAL CIRCUIT

AV-25

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO WITHOUT NAVIGATION]

MICROPHONE SIGNAL CIRCUIT

Description

INFOID:0000000006659762

Power is supplied from audio unit to microphone. The microphone transmits the sound voice to the audio unit.

Diagnosis Procedure

INFOID:0000000006659763

CHECK CONTINUITY BETWEEN AUDIO UNIT AND MICROPHONE CIRCUIT

Turn ignition switch OFF.

Disconnect audio unit connector and microphone connector.

Check continuity between audio unit harness connector and microphone harness connector.

Check continuity between audio unit harness connector and ground.

Is inspection result OK?

YES

>> GO TO 2.

>> Repair harness or connector.

CHECK VOLTAGE MICROPHONE VCC

Connect audio unit connector.

Turn ignition switch ON.

Check voltage between audio unit harness connector and ground.

Is inspection result OK?

YES

>> GO TO 3.

>> Replace audio unit. Refer to

AV-38, "Removal and Installation"

CHECK MICROPHONE SIGNAL

Turn ignition switch OFF.

Connect microphone connector.

Turn ignition switch ON.

Check signal between audio unit harness connector.

Audio unit

Microphone

Continuity

Connector

Terminal

Connector

Terminal

M129

Existed

Audio unit

Ground

Continuity

Connector

Terminal

M129

Not existed

Probe

Reference value

(Approx.)

(+)

(

−

)

Audio unit

Connector

Terminal

Connector

Terminal

M129

5.0 V

AV-26

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO WITHOUT NAVIGATION]

MICROPHONE SIGNAL CIRCUIT

Is inspection result OK?

YES

>> Replace audio unit. Refer to

AV-38, "Removal and Installation"

>> Replace microphone. Refer to

AV-43, "Removal and Installation"

Probe

Condition

Reference value

(+)

(-)

Audio unit

Connec-

tor

Terminal

Connec-

tor

Terminal

M129

Give a voice.

PKIB5037J

STEERING SWITCH SIGNAL A CIRCUIT

AV-27

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO WITHOUT NAVIGATION]

STEERING SWITCH SIGNAL A CIRCUIT

Description

INFOID:0000000006659764

Transmits the steering switch signal to audio unit.

Diagnosis Procedure

INFOID:0000000006659765

CHECK STEERING SWITCH SIGNAL A CIRCUIT

Disconnect audio unit connector and spiral cable connector.

Check continuity between audio unit harness connector and spiral cable harness connector.

Check continuity between audio unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair harness or connector.

CHECK SPIRAL CABLE

Check spiral cable.
Is the inspection result normal?

YES

>> GO TO 3.

>> Replace spiral cable. Refer to

SR-16, "Exploded View"

CHECK AUDIO UNIT VOLTAGE

Connect audio unit connector and spiral cable connector.

Turn ignition switch ON.

Check voltage between audio unit harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

>> Replace audio unit. Refer to

AV-38, "Removal and Installation"

CHECK STEERING SWITCH

Turn ignition switch OFF.

Check steering switch. Refer to

AV-28, "Component Inspection"

Is the inspection result normal?

YES

>> INSPECTION END

>> Replace steering switch. Refer to

AV-44, "Exploded View"

Audio unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M128

M33

Existed

Audio unit

Ground

Continuity

Connector

Terminal

M128

Not existed

Probe

Reference value

(Approx.)

(+)

(

−

)

AV C/U

Connector

Terminal

Connector

Terminal

M128

3.3 V

AV-28

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO WITHOUT NAVIGATION]

STEERING SWITCH SIGNAL A CIRCUIT

Component Inspection

INFOID:0000000006659778

Measure the resistance between the steering switch connector.

Standard

JPNIA1780GB

Steering switch

Condition

Resistance

(Approx.)

Ω

Terminal

switch ON

709 – 737

SEEK DOWN switch
ON

315 – 327

SEEK UP switch ON

119 – 123

SOURCE switch ON

switch ON

315 – 327

VOL UP switch ON

119 – 123

VOL DOWN switch ON

Juke F15 (2012 year). Service Repair Manual - part 2