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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 (WITHOUT AUDIO AMPLIFIER) ... 14
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                              AUDIO UNIT (WITH AUDIO AMPLIFIER) .......... 14                     .
 SIONER" ................................................................. 2
                                                                         .            AUDIO UNIT (WITH AUDIO AMPLIFIER AND                                         G
 Wiring Diagrams and Trouble Diagnosis ................. 2               .            SUBWOOFER) ................................................... 15   .
AUDIO ........................................................................ 3
                                                                         .          Inspection .............................................................. 16
                                                                                                                                                          .
 System Description ................................................. 3  .            SPEAKER .......................................................... 16
                                                                                                                                                          .
                                                                                                                                                                   H
   MODELS WITHOUT AUDIO AMPLIFIER ............ 3                         .            ANTENNA .......................................................... 16
                                                                                                                                                          .
   MODELS WITH AUDIO AMPLIFIER ................... 3                     .            AUDIO UNIT ....................................................... 16
                                                                                                                                                          .
   MODELS WITH AUDIO AMPLIFIER AND SUB-                                               AUDIO UNIT VOLTAGES ................................... 16          .
   WOOFER ............................................................. 3.            STEERING WHEEL AUDIO CONTROL SWITCH                                           I
 Schematic ............................................................... 5
                                                                         .            RESISTANCE ..................................................... 17 .
   WITH AUDIO AMPLIFIER .................................... 5           .         AUDIO ANTENNA ................................................... 18   .
   WITH AUDIO AMPLIFIER AND SUBWOOFER 6                                  .....      Location of Antenna ............................................... 18.         J
 Wiring Diagram -- AUDIO -- .................................. 7         .          Fixed Antenna Rod Replacement .......................... 18           .
   WITHOUT AUDIO AMPLIFIER ............................ 7                .            REMOVAL .......................................................... 18
                                                                                                                                                          .
   WITH AUDIO AMPLIFIER .................................... 8           .            INSTALLATION .................................................. 18  .        AV
   WITH AUDIO AMPLIFIER AND SUBWOOFER                                    ....11


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                                                                             AV-1
                                              PRECAUTIONS

PRECAUTIONS                                                         PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           EKS003ME


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 includes seat belt switch inputs and 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 Man-
ual.
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.
Wiring Diagrams and Trouble Diagnosis                                                                         EKS003LW


When you read wiring diagrams, refer to the following:
q  GI-13, "How to Read Wiring Diagrams"
q  PG-8, "POWER SUPPLY ROUTING" for power distribution circuit.
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                                                                                        EKS003LY


Refer to Owner's Manual for audio system operating instructions.
MODELS WITHOUT AUDIO AMPLIFIER                                                                                       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.
When the audio unit power knob is pushed to the ON position, audio signals are supplied                              E
q   through audio unit terminals 2, 4, 14 and 16
q   to door speakers, pillar tweeters and rear speakers.
                                                                                                                     F
MODELS WITH AUDIO AMPLIFIER
Power is supplied at all times
q    through 30A fusible link (letter h, located in the fuse and fusible link box)                                G
q    to audio amplifier terminals 5 and 12
q    through 15A fuse (No. 41, located in the fuse and fusible link box)
q    to audio unit terminal 6.                                                                                    H
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.                                                                                   I
Ground for the audio unit is supplied through the case of the audio unit. Ground for the audio amplifier is sup-
plied to terminals 4 and 11 through body grounds M68 and M14.
When the audio unit power knob is pushed to the ON position, audio signals are supplied                           J
q    through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16
q    to audio amplifier terminals 15, 16, 17, 20, 21, 22, 23, and 24
q    through audio amplifier terminals 1, 2, 3, and 9                                                            AV
q    to front door speakers, pillar tweeters and rear speakers
When the steering switch is pushed, audio signals are supplied
                                                                                                                  L
q    through audio unit terminal 23
q    to steering wheel audio control switch terminal 15, and
q    through steering wheel audio control switch terminal 16                                                      M
q    to audio unit terminal 24.
MODELS WITH AUDIO AMPLIFIER AND SUBWOOFER
Power is supplied at all times
q    through 30A fusible link (letter h, located in the fuse and fusible link box)
q    to audio amplifier terminals 5 and 12
q    through 15A fuse (No. 41, located in the fuse and fusible link box)
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 for the audio unit is supplied through the case of the audio unit. Ground for the audio amplifier is sup-
plied to terminals 4 and 11 through body grounds M68 and M14.
When the audio unit power knob is pushed to the ON position, audio signals are supplied
q    through audio unit terminals 1, 2, 3, 4, 13, 14, 15 and 16

                                                    AV-3
                                                AUDIO

q  to audio amplifier terminals 15, 16, 17, 20, 21, 22, 23, and 24
q  through audio amplifier terminals 1, 2, 3, and 9
q  to front door speakers, pillar tweeters and rear speaker RH and subwoofer.
When the steering switch is pushed, audio signals are supplied
q  through audio unit terminal 23
q  to steering wheel audio control switch terminal 15, and
q  through steering wheel audio control switch terminal 16
q  to audio unit terminal 24.




                                                  AV-4
                       AUDIO

Schematic                            EKS003LZ

WITH AUDIO AMPLIFIER                            A


                                                B



                                                C


                                                D


                                                E



                                                F


                                                G


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                                                 I


                                                 J


                                                AV


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                               WKWA0316E




                       AV-5
                                AUDIO

WITH AUDIO AMPLIFIER AND SUBWOOFER




                                        WKWA0350E




                                 AV-6
                             AUDIO

Wiring Diagram -- AUDIO --                 EKS003M0

WITHOUT AUDIO AMPLIFIER                               A


                                                      B



                                                      C


                                                      D


                                                      E



                                                      F


                                                      G


                                                      H



                                                       I


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                                                      AV


                                                       L



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                                     WKWA0317E




                             AV-7
                       AUDIO

WITH AUDIO AMPLIFIER




                               WKWA0318E




                       AV-8
AUDIO


                    A


                    B



                    C


                    D


                    E



                    F


                    G


                    H



                     I


                     J


                    AV


                     L



                    M




        WKWA0319E




AV-9
AUDIO




        WKWA0320E




AV-10
                                AUDIO

WITH AUDIO AMPLIFIER AND SUBWOOFER
                                                     A


                                                     B



                                                     C


                                                     D


                                                     E



                                                     F


                                                     G


                                                     H



                                                      I


                                                      J


                                                     AV


                                                      L



                                                     M




                                         WKWA0351E




                                 AV-11
AUDIO




        WKWA0352E




AV-12
AUDIO


                    A


                    B



                    C


                    D


                    E



                    F


                    G


                    H



                     I


                     J


                    AV


                     L



                    M




        WKWA0353E




AV-13
                                                                AUDIO

Trouble Diagnoses                                                                                                                 EKS003M1

AUDIO UNIT (WITHOUT AUDIO 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.
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                noise suppressor condenser.
                              4. Alternator                                 4. Check alternator.
                              5. Ignition coil or secondary wiring          5. Check ignition coil and secondary wiring.
                              6. Audio unit                                 6. 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. Antenna                                    2. Check antenna.
accessories on (switch
                              3. Accessory ground                           3. Check accessory ground.
pops and motor noise).
                              4. Faulty accessory                           4. Replace accessory.

AUDIO UNIT (WITH AUDIO 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. 30A fusible link                           1. Check 30A fusible link (letter h, located in fuse and fus-
operational, but no sound     2. Audio amplifier ground                        ible link box). Verify battery positive voltage is present
is heard from any speaker.                                                     at terminals 5 and 12.
                              3. Audio amplifier
                                                                            2. Check harness continuity between audio amplifier ter-
                                                                               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
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.




                                                                AV-14
                                                                AUDIO

         Symptom                              Possible causes                                          Repair order
                                                                                                                                               A
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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