Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Frontier 2003-2005 Approved Nissan Frontier 2004 AV
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K ELECTRICAL
A
B
SECTION
AUDIO, VISUAL & TELEPHONE SYSTEM C
D
E
CONTENTS
PRECAUTIONS ......................................................... 2 . Trouble Diagnoses ................................................ 14 . F
Precautions for Supplemental Restraint System AUDIO UNIT (EXCEPT CREW CAB WITH
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- AMPLIFIER) ....................................................... 14
.
SIONER" ................................................................. 2
. AUDIO UNIT (CREW CAB WITH AMPLIFIER) ... 15 G
Wiring Diagrams and Trouble Diagnosis ................. 2 . Inspection .............................................................. 15
.
AUDIO ........................................................................ 3
. SPEAKER .......................................................... 15
.
System Description ................................................. 3 . ANTENNA .......................................................... 15
.
H
KING CAB WITH BASE AUDIO SYSTEM ........... 3 . AUDIO UNIT ....................................................... 16
.
KING CAB WITH PREMIUM AUDIO SYSTEM..... 3 AUDIO UNIT VOLTAGES ................................... 16 .
CREW CAB WITHOUT AMPLIFIER .................... 3 . AMPLIFIER VOLTAGES ..................................... 16 .
CREW CAB WITH AMPLIFIER ............................ 4 . STEERING WHEEL AUDIO CONTROL SWITCH I
Schematic -- With Audio Amplifier ......................... 5 . RESISTANCE CHECK ....................................... 17 .
Wiring Diagram -- AUDIO -- .................................. 6 . AUDIO ANTENNA ................................................... 18 .
KING CAB WITH BASE AUDIO SYSTEM ........... 6 . Location of Antenna ............................................... 18. J
KING CAB WITH PREMIUM AUDIO SYSTEM..... 7 Fixed Antenna Rod Replacement .......................... 18 .
CREW CAB WITHOUT AMPLIFIER .................... 9 . REMOVAL .......................................................... 18
.
CREW CAB WITH AMPLIFIER ...........................11 . INSTALLATION .................................................. 18 . AV
L
M
AV-1
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS006X4
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system may include seat belt switch inputs and dual stage front air bag modules. If
equipped with dual stage front air bag modules, the SRS system uses the seat belt switches to determine the
front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and
whether the front occupants are belted or unbelted. Information necessary to service the system safely is
included in the SRS and SB section of this Service Manual.
The vehicle may be equipped with a passenger air bag deactivation switch. Because no rear seat exists where
a rear-facing child restraint can be placed, the switch is designed to turn off the passenger air bag so that a
rear-facing child restraint can be used in the front passenger seat. The switch is located in the center of the
instrument panel, near the ashtray. When the switch is turned to the ON position, the passenger air bag is
enabled and could inflate for certain types of collision. When the switch is turned to the OFF position, the pas-
senger air bag is disabled and will not inflate. A passenger air bag OFF indicator on the instrument panel lights
up when the passenger air bag is switched OFF. The driver air bag always remains enabled and is not affected
by the passenger air bag deactivation switch.
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness connec-
tors.
q The vehicle may be equipped with a passenger air bag deactivation switch which can be operated
by the customer. When the passenger air bag is switched OFF, the passenger air bag is disabled
and will not inflate. When the passenger air bag is switched ON, the passenger air bag is enabled
and could inflate for certain types of collision. After SRS maintenance or repair, make sure the
passenger air bag deactivation switch is in the same position (ON or OFF) as when the vehicle
arrived for service.
Wiring Diagrams and Trouble Diagnosis EKS006X5
When you read wiring diagrams, refer to the following:
q GI-13, "How to Read Wiring Diagrams"
q PG-9, "POWER SUPPLY ROUTING"
When you perform trouble diagnosis, refer to the following:
q GI-9, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
q GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident"
Check for any Service bulletins before servicing the vehicle.
AV-2
AUDIO
AUDIO PFP:28111
A
System Description EKS006X6
Refer to Owner's Manual for audio system operating instructions.
KING CAB WITH BASE AUDIO SYSTEM B
Power is supplied at all times
q through 15A fuse (No. 41, located in the fuse and fusible link box)
C
q to audio unit terminal 6.
With the ignition switch in the ACC or ON position, power is supplied
q through 10A fuse [No. 18, located in the fuse block (J/B)] D
q to audio unit terminal 10.
Ground is supplied through the case of the audio unit.
With the audio unit ON, audio signals are supplied E
q through audio unit terminals 2, 4, 14 and 16
q to front door speakers and pillar tweeters.
F
KING CAB WITH PREMIUM AUDIO SYSTEM
Power is supplied at all times
q through 15A fuse (No. 41, located in the fuse and fusible link box) G
q to audio unit terminal 6 and
With the ignition switch in the ACC or ON position, power is supplied
q through 10A fuse [No. 18, located in the fuse block (J/B)] H
q to audio unit terminal 10.
Ground is supplied through the case of the audio unit.
With the audio unit ON, audio signals are supplied I
q through audio unit terminals 2, 4, 14 and 16
q to door speakers and pillar tweeters and
q to subwoofer amplifier terminals 2 and 4. J
When the steering wheel audio control switches are pushed, audio signals are supplied
q through audio unit terminal 23
AV
q to steering wheel audio control switch terminal 15 and
q through steering audio control switch terminal 16
q to audio unit terminal 9. L
CREW CAB WITHOUT AMPLIFIER
Power is supplied at all times
q through 15A fuse (No. 41, located in the fuse and fusible link box) M
q to audio unit terminal 6.
With the ignition switch in the ACC or ON position, power is supplied
q through 10A fuse [No. 18, located in the fuse block (J/B)]
q to audio unit terminal 10.
Ground is supplied through the case of the audio unit.
With the audio unit ON, audio signals are supplied
q through audio unit terminals 2, 4, 14 and 16
q to front door speakers, pillar tweeters and rear door speakers.
When the steering wheel audio control switches are pushed, audio signals are supplied
q through audio unit terminal 23
q to steering wheel audio control switch terminal 15 and
q through steering audio control switch terminal 16
q to audio unit terminal 24.
AV-3
AUDIO
CREW CAB WITH AMPLIFIER
Power is supplied at all times
q through 15A fuse (No. 41, located in fuse and fusible link box)
q to audio unit terminal 6 and
q through 30A fusible link (letter h, located in fuse and fusible link box)
q to audio amplifier terminals 5 and 12.
With the ignition switch in the ACC or ON position, power is supplied
q through 10A fuse [No. 18, located in fuse block (J/B)]
q to audio unit terminal 10.
Ground is supplied through the case of the audio unit.
Ground is also supplied
q through audio amplifier terminals 4 and 11
q to body grounds M14 and M68.
With the audio unit ON, audio signals are supplied
q through audio unit terminals 1, 2, 3, 4, 12, 13, 14, 15 and 16
q to audio amplifier terminals 13, 15, 16, 17, 20, 21, 22, 23, and 24
q through amplifier terminals 1, 2, 3, and 9
q to front door speakers, pillar tweeters, rear speakers and subwoofer.
When the steering wheel audio control switches are pushed, audio signals are supplied
q through audio unit terminal 23
q to steering wheel audio control switch terminal 15 and
q through steering audio control switch terminal 16
q to audio unit terminal 24.
AV-4
AUDIO
Schematic -- With Audio Amplifier EKS006X7
A
B
C
D
E
F
G
H
I
J
AV
L
M
WKWA0307E
AV-5
AUDIO
Wiring Diagram -- AUDIO -- EKS006X8
KING CAB WITH BASE AUDIO SYSTEM
WKWA0308E
AV-6
AUDIO
KING CAB WITH PREMIUM AUDIO SYSTEM
A
B
C
D
E
F
G
H
I
J
AV
L
M
WKWA0309E
AV-7
AUDIO
WKWA0310E
AV-8
AUDIO
CREW CAB WITHOUT AMPLIFIER
A
B
C
D
E
F
G
H
I
J
AV
L
M
WKWA0311E
AV-9
AUDIO
WKWA0312E
AV-10
AUDIO
CREW CAB WITH AMPLIFIER
A
B
C
D
E
F
G
H
I
J
AV
L
M
WKWA0313E
AV-11
AUDIO
WKWA0314E
AV-12
AUDIO
A
B
C
D
E
F
G
H
I
J
AV
L
M
WKWA0315E
AV-13
AUDIO
Trouble Diagnoses EKS006X9
AUDIO UNIT (EXCEPT CREW CAB WITH AMPLIFIER)
Symptom Possible causes Repair order
Audio unit inoperative (no 1. 10A fuse 1. Check 10A fuse [No. 18, located in fuse block (J/B)].
digital display and no 2. Poor audio unit case ground Turn ignition switch ON and verify that battery positive
sound from speakers). voltage is present at terminal 10 of audio unit.
3. Audio unit
2. Check audio unit case ground.
3. Remove audio unit for repair.
Audio unit controls are 1. Audio unit output 1. Check audio unit output voltages.
operational, but no sound 2. Audio unit 2. Remove audio unit for repair.
is heard from any speaker.
Audio unit presets are lost 1. 15A fuse 1. Check 15A fuse (No. 41, located in fuse and fusible
when ignition switch is 2. Audio unit link box) and verify that battery positive voltage is
turned OFF. present at terminal 6 of audio unit.
2. Remove audio unit for repair.
Individual speaker is noisy 1. Speaker 1. Check speaker.
or inoperative. 2. Audio unit output 2. Check audio unit output voltages.
3. Speaker circuit 3. Check wires for open or short between audio unit and
4. Audio unit speaker.
4. Remove audio unit for repair.
Subwoofer speaker is noisy 1. Speaker 1. Check speaker.
or inoperative (king cab 2. Speaker circuit 2. Check wires for open or short between audio unit and
models with premium audio speaker.
3. Audio unit output
system).
3. Check audio unit output voltages to speaker.
Audio unit stations are 1. Antenna 1. Check antenna.
weak or noisy. 2. Poor audio unit ground 2. Check audio unit ground.
3. Audio unit 3. Remove audio unit for repair.
Audio unit generates noise 1. Poor audio unit ground 1. Check audio unit ground.
in AM and FM modes with 2. Loose or missing ground bonding straps 2. Check ground bonding straps.
engine running.
3. Ignition condenser or rear window defog- 3. Replace ignition condenser or rear window defogger
ger noise suppressor condenser (Crew noise suppressor condenser (Crew Cab models).
Cab models) 4. Check generator.
4. Generator 5. Check ignition coil and secondary wiring.
5. Ignition coil or secondary wiring 6. Remove audio unit for repair.
6. Audio unit
Audio unit generates noise 1. Poor audio unit ground 1. Check audio unit ground.
in AM and FM modes with 2. Antenna 2. Check antenna.
accessories on (switch
3. Accessory ground 3. Check accessory ground.
pops and motor noise).
4. Faulty accessory 4. Replace accessory.
Steering wheel audio con- 1. Steering wheel audio control switch 1. Check steering wheel audio control switch, refer to AV-
trol switch does not operate 2. Audio unit output 17, "STEERING WHEEL AUDIO CONTROL SWITCH
(except base audio sys- RESISTANCE CHECK" .
3. Steering wheel audio control switch circuit
tem). 2. Check audio unit output voltage.
4. Audio unit
3. Check harness between audio unit and steering
switch.
4. Remove audio unit for repair.
AV-14
AUDIO
AUDIO UNIT (CREW CAB WITH AMPLIFIER)
Symptom Possible causes Repair order
A
Audio unit inoperative (no 1. 10A fuse 1. Check 10A fuse [No. 18, located in fuse block (J/B)].
digital display and no 2. Poor audio unit case ground Turn ignition switch ON and verify that battery positive
sound from speakers). voltage is present at terminal 10 of audio unit. B
3. Audio unit
2. Check audio unit case ground.
3. Remove audio unit for repair.
Audio unit controls are 1. 30A fusible link 1. Check 30A fusible link (letter h. located in fuse and fus- C
operational, but no sound 2. Audio amplifier ground ible link box). Verify battery positive voltage is present
is heard from any speaker. at terminal 5 and 12.
3. Audio amplifier
2. Check harness continuity between audio amplifier ter- D
minals 4 and 11, and ground.
3. Remove audio amplifier for repair.
Audio unit presets are lost 1. 15A fuse 1. Check 15A fuse (No. 41, located in fuse and fusible E
when ignition switch is 2. Audio unit link box) and verify that battery positive voltage is
turned OFF. present at terminal 6 of audio unit.
2. Remove audio unit for repair.
F
Individual speaker is noisy 1. Each speaker 1. Check speaker.
or inoperative. 2. Output circuit to each speaker 2. Check the output circuit to each speaker
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