ECU NISSAN NAVARA 2005 Repair Repair Manual

AV-4
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
PFP:00000
System FunctionsEKS00Q5X
Refer to Owner's Manual for audio system operating instructions.
AUDIO
Speed Sensitive Volume (6CD Player Type)
Volume level of this system gone up and down automatically in proportion to the vehicle speed. And the con-
trol level can be selected by the customer.
NATS AUDIO LINK (WITHOUT NAVIGATION SYSTEM)
Description
The link with the NATS IMMU implies that the audio unit can basically only be operated if connected to the
matching NATS IMMU to which the audio unit was initially fitted on the production line.
Since radio operation is impossible after the link with the NATS is disrupted theft of the audio unit is basically
useless since special equipment is required to reset the audio unit.
Initialization Process for Audio Units That Are Linked to The NATS IMMU
New audio units will be delivered to the factories in the “NEW” state, i.e. ready to be linked with the vehicle's
NATS. When the audio unit in “NEW” state is first switched on at the factory, it will start up communication with
the vehicle's immobilizer control unit (IMMU) and send a code (the “audio unit Code”) to the IMMU. The IMMU
will then store this code, which is unique to each audio unit, in its (permanent) memory.
Upon receipt of the code by the IMMU, the NATS will confirm correct receipt of the audio unit code to the audio
unit. Hereafter, the audio unit will operate as normal.
During the initialization process, “NEW” is displayed on the audio unit display. Normally though, communica-
tion between audio unit and IMMU takes such a short time (300 ms) that the audio unit seems to switch on
directly without showing “NEW” on its display.
Normal Operation
Each time the audio unit is switched on afterwards, the audio unit code will be verified between the audio unit
and the NATS before the audio unit becomes operational. During the code verification process, “WAIT” is
shown on the audio unit display. Again, the communication takes such a short time (300 ms) that the audio
unit seems to switch on directly without showing “WAIT” on its display.
When The Radio Is Locked
In case of a audio unit being linked with the vehicle's NATS (immobilizer system), disconnection of the link
between the audio unit and the IMMU will cause the audio unit to switch into the lock (“SECURE”) mode in
which the audio unit is fully inoperative. Hence, repair of the audio unit is basically impossible, unless the
audio unit is reset to the “NEW” state for which special decoding equipment is required.
Clarion has provided their authorized service representatives with so called “decoder boxes” which can bring
the audio unit back to the “NEW” state, enabling the audio unit to be switched on after which repair can be per-
formed. Subsequently, when the repaired audio unit is delivered to the final user again, it will be in the “NEW”
state to enable re-linking the audio unit to the vehicle's immobilizer system. As a result of the above, repair of
the audio unit can only be done by an authorized Clarion representative (when the owner of the vehicle
requests repair and can show personal identification).
Service Procedure
Item Service procedure Description
Battery disconnection No additional action required. –
Radio needs repair Repair needs to be done by authorized
representative of radio manufacturer since
radio cannot be operated unless it is reset
to NEW state, using special decoding
equipment.–
Replacement of radio by new part No additional action required. Radio is delivered in NEW state.
Transferring radio to another vehicle/
replacement of radio by an “old” partRadio needs to be reset to NEW state by
authorized representative of radio manu-
facturer.–
Replacement of IMMU Radio needs to be reset to NEW state by
authorized representative of Clarion.After switching on the radio, it will display
“SECURE” after 1 minute.

SYSTEM DESCRIPTION
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AV
Personal Audio Setting
The radio is designed to store several settings (volume, bass, treble, preset stations) with every NATS ignition
key used. Up to a maximum of 4 NATS keys can be registered. During the communication mentioned under
“Anti-Theft System”, the radio will recognize the used ignition key and select the accompanying settings.
VEHICLE INFORMATION SYSTEM
lThe status of audio system, fuel consumption, rear view monitor and navigation system are displayed.
lNAVI control unit receives the data signal from ECM, combination meter via CAN communication. It calcu-
lates the values of fuel economy, and trip computer from the received information and displays them.
NAVIGATION SYSTEM
Refer to Owner's Manual or navigation system Owner's Manual for navigation system operating instructions.
Location Detection Principle
The navigation system periodically calculates the vehicle's current
position according to the following three signals:
lTravel distance of the vehicle as determined by the vehicle
speed sensor
lTurning angle of the vehicle as determined by the gyroscope
(angular velocity sensor)
lDirection of vehicle travel as determined by the GPS antenna
(GPS information)
The current position of the vehicle is then identified by comparing the
calculated vehicle position with map data read from the map DVD-
ROM, which is stored in the DVD-ROM drive (map-matching), and
indicated on the screen as a vehicle mark. More accurate data is judged and used by comparing vehicle posi-
tion detection results found by the GPS with the result by map-matching.
The current vehicle position will be calculated by detecting the dis-
tance the vehicle moved from the previous calculation point and its
direction.
lTravel distance
Travel distance calculations are based on the vehicle speed
sensor input signal. Therefore, the calculation may become
incorrect as the tires wear down. To prevent this, an automatic
distance correction function has been adopted.
lTravel direction
Change in the travel direction of the vehicle is calculated by a
gyroscope (angular velocity sensor) and a GPS antenna (GPS
information). They have both advantages and disadvantages.
More accurate traveling direction is detected because priorities are set for the signals from these two
devices according to the situation.
No communication from IMMU to radio 1. If NATS is malfunctioning, check NATS
system.
2. After NATS is repaired, reset radio to
NEW state by authorized representative
of Clarion.After switching on the radio, the radio will
display “SECURE” after 1 minute. Further
use of radio is impossible until communica-
tion is established again, or after radio is
reset by authorized representative of Clar-
ion.
When initialized between ECM and IMMU. Radio needs to be reset to NEW status by
authorized representative of Clarion.After switching on the radio, it will display
“SECURE” after 1 minute. Item Service procedure Description
SKIB1058E
Type Advantage Disadvantage
Gyroscope
(angular velocity sensor)Can detect the vehicle's turning angle
quite accurately.Direction errors may accumulate when vehicle is
driven for long distances without stopping.
GPS antenna
(GPS information)Can detect the vehicle's travel direction
(North/South/East/West).Correct direction cannot be detected when vehi-
cle speed is low.
SEL684V

AV-56
DIAGNOSIS SYSTEM
CONSULT-II Functions
EKS00Q6L
CONSULT-II FUNCTIONS
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Select “MULTI AV” on “SELECT SYSTEM” screen. If “MULTI
AV” is not indicated, check the following items.
lNAVI contorol unit power supply and ground circuit.
lCONSULT-II data link connector (DLC) circuit
Refer toGI-50, "
CONSULT-II Data Link Connector (DLC) Cir-
cuit".
2. Select diagnosis item on “SELECT DIAG MODE” screen.
SELF-DIAG RESULTS
The self-diagnosis is started and self-diagnostic results are dis-
played by touching “START” after selecting “SELF-DIAG RESULTS”.
lIn CONSULT-II self-diagnosis, self-diagnostic results and error
history are displayed collectively.
lThe current malfunction indicates “CRNT”. The past malfunction
indicates “PAST”.
lIf DTC [U1000], [U1300] are detected, “0” is displayed at TIME.
If it is normal the next time ignition switch is ON, add 1 to the
TIME.
Diagnosis mode Description Reference
SELF DIAG RESULTSPerforms the connection diagnosis of communication circuit between NAVI
control unit and navigation system and displays the current and past malfunc-
tions collectively.AV- 5 6
DATA MONITORThe diagnosis of vehicle signal that is input to the NAVI control unit can be
performed.AV- 5 8
CAN DIAG SUPPORT MNTR The transmitting/receiving of CAN communication can be monitored.LAN-15
AV COMM MONITOR The transmitting/receiving of navigation system can be monitored.AV- 5 9
ECU PART NUMBER The part number of NAVI control unit can be checked.AV- 6 0
SKIB3672E
SKIB3673E
SKIB3674E

AV-60
DIAGNOSIS SYSTEM
AUDIO
lWhen “AUDIO” is selected, the communication condition from
audio unit to each unit and malfunction counter are displayed.
lError counter displays OK if any malfunction is not detected in
the past. If the malfunction is detected, it displays 0. When turn-
ing the ignition switch ON, if it is normal, it displays 1. The upper
limitofthecounteris39.
ECU PART NUMBER
The part number of NAVI control unit is displayed.
ItemsDisplay
(PRESENT)Malfunction
counter
(PAST)
TRANSMIT DG OK / UNKWN OK / 0 - 39
SPEAKER AMP — —
TV TUNER — —
DVD PLAYER — —
MD DECK — —
CD CHANGER — —
MD CHANGER — —
SKIB4685E
SKIB3680E

BCS-14
BCM (BODY CONTROL MODULE)
CONSULT-II Function (BCM)
EKS00PA4
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT–II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, and then turn
ignition switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
BCM diagnostic test
itemDiagnostic mode Content
Inspection by partWORK SUPPORT Changes setting of each function.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
BBIA0538E
BCIA0029E
BCIA0030E

BCM (BODY CONTROL MODULE)
BCS-15
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BCS
4. Select item to be diagnosed on “SELECT TEST ITEM” screen.
ITEMS OF EACH PART
NOTE:
CONSULT-II will only display systems the vehicle possesses.
WORK SUPPORT
Operation Procedure
1. Touch “BCM” on “SELECT TEST ITEM” screen.
PKIC0325E
System and itemCONSULT-II
displayDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF-
DIAG
RESULTSCAN DIAG
SUPPORT
MNTRDATA
MONITORECU
PA RT
NUMBERACTIVE
TESTCON-
FIGU-
RATION
BCM BCM´´ ´ ´ ´
Power door lock sys-
temDOOR LOCK´´´
Rear window defoggerREAR DEFOG-
GER´´
Warning chime BUZZER´´
Room lamp timer INT LAMP´´´
Headlamp HEAD LAMP´´´
Wiper WIPER´´´
Turn signal lamp
Hazard lampFLASHER´´
Blower fan switch sig-
nal
Air conditioner switch
signalAIR CONDI-
TONER´
Combination switch COMB SW´
NATS IMMU´´
Interior lamp battery
saverBATTERY
SAVER´´´
Theft alarm THEFT ALARM´´´
Retained power control RETAINED PWR´´´
Oil pressure switch SIGNAL BUFFER´´
PKIC0325E

BL-1
BODY, LOCK & SECURITY SYSTEM
IBODY
CONTENTS
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BODY, LOCK & SECURITY SYSTEM
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” .................................................................. 4
Precautions for procedures with out cowl top cover..... 4
Precautions for Work ................................................ 4
Wiring Diagrams and Trouble Diagnosis .................. 4
PREPARATION ........................................................... 5
Commercial Service Tools ........................................ 5
SQUEAK AND RATTLE TROUBLE DIAGNOSES..... 6
Work Flow ................................................................ 6
CUSTOMER INTERVIEW ..................................... 6
DUPLICATE THE NOISE AND TEST DRIVE ....... 7
CHECK RELATED SERVICE BULLETINS ........... 7
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 7
REPAIR THE CAUSE ........................................... 7
CONFIRM THE REPAIR ....................................... 8
Generic Squeak and Rattle Troubleshooting ........... 8
INSTRUMENT PANEL .......................................... 8
CENTER CONSOLE ............................................. 8
DOORS ................................................................. 8
TRUNK .................................................................. 9
SUNROOF/HEADLINING ..................................... 9
SEATS ................................................................... 9
UNDERHOOD ....................................................... 9
Diagnostic Worksheet ............................................ 10
HOOD ....................................................................... 12
Fitting Adjustment .................................................. 12
LONGITUDINAL AND LATERAL CLEARANCE
ADJUSTMENT .................................................... 13
FRONT END HEIGHT ADJUSTMENT ............... 13
SURFACE HEIGHT ADJUSTMENT ................... 13
Removal and Installation of Hood Assembly .......... 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 14
Removal and Installation of Hood Hinge ................ 15
REMOVAL ........................................................... 15
INSTALLATION ................................................... 15
Removal and Installation of Hood Lock Control ..... 15REMOVAL ........................................................... 15
INSTALLATION ................................................... 16
Hood Lock Control Inspection ................................ 17
RADIATOR CORE SUPPORT .................................. 18
Removal and Installation ........................................ 18
REMOVAL ........................................................... 18
INSTALLATION ................................................... 19
FRONT FENDER ...................................................... 20
Removal and Installation ........................................ 20
REMOVAL ........................................................... 20
INSTALLATION ................................................... 20
POWER DOOR LOCK SYSTEM .............................. 21
Component Parts and Harness Connector Location... 21
KING CAB ........................................................... 21
DOUBLE CAB ..................................................... 22
System Description ................................................. 23
OUTLINE ............................................................. 24
CAN Communication System Description .............. 25
CAN Communication Unit ....................................... 25
Schematic ............................................................... 26
Wiring Diagram —D/LOCK— ................................. 27
Terminals and Reference Value for BCM ............... 34
CONSULT-II Function (BCM) ................................. 35
CONSULT-II BASIC OPERATION PROCEDURE
... 35
CONSULT-II APPLICATION ITEMS .................... 36
Work Flow ............................................................... 37
Trouble Diagnoses Chart by Symptom ................... 37
Check Power Supply and Ground Circuit ............... 37
Check Door Switch ................................................. 39
CHECK DOOR SWITCH (DOUBLE CAB) .......... 39
CHECK DOOR SWITCH (KING CAB) ................ 41
Check Key Switch ................................................... 43
Check Door Key Cylinder Switch (LHD Model Only)... 45
Check Front Door Lock Actuator (Driver Side) ....... 48
Check Front Door Lock Actuator (Passenger Side)... 49
Check Front Door Lock Actuator Switch ................. 50
Check Rear Door Lock Actuator LH (Double Cab
Model) ..................................................................... 50
Check Rear Door Lock Actuator RH (Double Cab

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T models, drive position on A/T models).
6) Raisethevehicleonahoistandhitatirewitharubberhammer.
lDrive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
lIf it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Engine Ear or mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
lremoving the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.
ltapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only
temporarily.
lfeeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.
lplacing a piece of paper between components that you suspect are causing the noise.
llooking for loose components and contact marks.
Refer toBL-8, "
Generic Squeak and Rattle Troubleshooting".
REPAIR THE CAUSE
lIf the cause is a loose component, tighten the component securely.
lIf the cause is insufficient clearance between components:
–separate components by repositioning or loosening and retightening the component, if possible.
–insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape are available through your authorized Nissan Parts Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
NOTE:
Always check with the Parts Department for the latest parts information.
Each item can be ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100´135 mm (3.94´5.31 in)/76884-71L01: 60´85 mm (2.36´3.35 in)/76884-71L02: 15´
25 mm (0.59´0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50´50 mm (1.97´1.97 in)/73982-50Y00: 10 mm (0.39 in) thick, 50
´50 mm (1.97´1.97 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30´50 mm (1.18´1.97 in)

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

HOOD
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LONGITUDINAL AND LATERAL CLEARANCE ADJUSTMENT
1. Remove the hood lock, loosen the hood hinge nuts and close the hood.
2. Adjust the lateral and longitudinal clearance, and open the hood to tighten the mounting bolts to the spec-
ified torque.
3. Install the hood lock temporarily, and align the hood striker and lock so that the centers of striker and lock
become vertical viewed from the front, by moving the hood lock laterally.
4. Tighten hood lock mounting bolts to the specified torque.
FRONT END HEIGHT ADJUSTMENT
1. Remove the hood lock and adjust the height by rotating the bumper rubber until the hood becomes 1 to1.5
mm (0.04 to 0.059 in) lower than the fender.
2. Temporarily tighten the hood lock, and position it by engaging it with the hood striker. Check the lock and
striker for looseness, and tighten the hood lock mounting bolts to the specified torque.
CAUTION:
Adjust right/left clearance between hood and each part to the following specification.
SURFACE HEIGHT ADJUSTMENT
1. Remove the hood lock, and adjust the surface height difference of hood, fender and headlamp according
to the fitting standard dimension, by rotating RH and LH bumper rubbers.
2. Install hood lock temporarily, and move hood lock laterally until the centers of striker and lock become ver-
tical when viewed from the front.
3. Check that the hood lock secondary latch is properly engaged with the secondary striker with hood's own
weight.
4. Check that the hood lock primary latch is securely engaged with the hood striker with hood's own weight
by dropping hood from approx. 200 mm (7.87) height.
CAUTION:
Do not drop hood from a height of 300 mm (11.81 in) or more.
5. Move hood lockup and down until striker smoothly engages the lock when the hood is closed.
6. When pulling the hood opener lever gently, make sure that front end of the hood rises by approximately 20
mm (0.79) and that hood striker and hood lock primary latch is disengaged. Also make sure that hood
opener returns to the original position.
7. After adjustment, tighten lock bolts to the specified torque.
CAUTION:
lAfter installing, apply touch-up paint (the body color) onto the head of the hinge mounting nuts.
lAdjust evenness between hood and each part to the following specification.
Portion Clearance
Hood - Front grille A - A (a) 3.7 - 8.3 mm (0.146 - 0.327 in)
Hood - Front fender B - B (c) 3.6 - 5.6 mm (0.142 - 0.220 in)
Hood - Headlamp C - C (e) 6.0 - 8.0 mm (0.236 - 0.315 in)
Portion R / L difference
Hood - Front grille A - A (a) Less than 2.2 mm (0.087 in)
Hood - Front fender B - B (c) Less than 1.0 mm (0.039 In)
Portion Surface height
Hood - Front grille A - A (b) -1.7 - 3.1 mm (-0.067 - 0.122 in)
Hood - Front fender B - B (d) -1.0 - 1.0 mm (-0.039 - 0.039 in)
Hood - Headlamp C - C (f) -1.3 - 2.7 mm (-0.051 - 0.106 in)