service NISSAN NAVARA 2005 Repair Workshop Manual

GI-28
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
VOLTAGE CHECK METHOD
To help in understanding the diagnosis of open circuits please refer to the previous schematic.
In any powered circuit, an open can be found by methodically checking the system for the presence of voltage.
This is done by switching the DMM to the voltage function.
lConnect one probe of the DMM to a known good ground.
lBegin probing at one end of the circuit and work your way to the other end.
lWith SW1 open, probe at SW1 to check for voltage.
voltage; open is further down the circuit than SW1.
no voltage; open is between fuse block and SW1 (point A).
lClose SW1 and probe at relay.
voltage; open is further down the circuit than the relay.
no voltage; open is between SW1 and relay (point B).
lClose the relay and probe at the solenoid.
voltage; open is further down the circuit than the solenoid.
no voltage; open is between relay and solenoid (point C).
Any powered circuit can be diagnosed using the approach in the previous example.
Testing for “Shorts” in the Circuit
To simplify the discussion of shorts in the system, please refer to the following schematic.
RESISTANCE CHECK METHOD
lDisconnect the battery negative cable and remove the blown fuse.
lDisconnect all loads (SW1 open, relay disconnected and solenoid disconnected) powered through the
fuse.
lConnect one probe of the DMM to the load side of the fuse terminal. Connect the other probe to a known
good ground.
lWith SW1 open, check for continuity.
continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.
lClose SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good
ground. Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.
lClose SW1 and jump the relay contacts with jumper wire. Put probes at the load side of fuse terminal and
a known good ground. Then, check for continuity.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
VOLTAGE CHECK METHOD
lRemove the blown fuse and disconnect all loads (i.e. SW1 open, relay disconnected and solenoid discon-
nected) powered through the fuse.
lTurn the ignition key to the ON or START position. Verify battery voltage at the battery + side of the fuse
terminal (one lead on the battery + terminal side of the fuse block and one lead on a known good ground).
lWith SW1 open and the DMM leads across both fuse terminals, check for voltage.
voltage; short is between fuse block and SW1 (point A).
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SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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no voltage; short is further down the circuit than SW1.
lWith SW1 closed, relay and solenoid disconnected and the DMM leads across both fuse terminals, check
for voltage.
voltage; short is between SW1 and the relay (point B).
no voltage; short is further down the circuit than the relay.
lWith SW1 closed, relay contacts jumped with fused jumper wire check for voltage.
voltage; short is down the circuit of the relay or between the relay and the disconnected solenoid (point C).
no voltage; retrace steps and check power to fuse block.
Ground Inspection
Ground connections are very important to the proper operation of electrical and electronic circuits. Ground
connections are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can
become an unwanted resistance. This unwanted resistance can change the way a circuit works.
Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drasti-
cally affect an electronically controlled circuit. A poor or corroded ground can easily affect the circuit. Even
when the ground connection looks clean, there can be a thin film of rust on the surface.
When inspecting a ground connection follow these rules:
lRemove the ground bolt or screw.
lInspect all mating surfaces for tarnish, dirt, rust, etc.
lClean as required to assure good contact.
lReinstall bolt or screw securely.
lInspect for “add-on” accessories which may be interfering with the ground circuit.
lIf several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the
wires are clean, securely fastened and providing a good ground path. If multiple wires are cased in one
eyelet make sure no ground wires have excess wire insulation.
For detailed ground distribution information, refer to “Ground Distribution” in PG section.
Voltage Drop Tests
Voltage drop tests are often used to find components or circuits which have excessive resistance. A voltage
drop in a circuit is caused by a resistance when the circuit is in operation.
Check the wire in the illustration. When measuring resistance with DMM, contact by a single strand of wire will
give reading of 0 ohms. This would indicate a good circuit. When the circuit operates, this single strand of wire
is not able to carry the current. The single strand will have a high resistance to the current. This will be picked
up as a slight voltage drop.
Unwanted resistance can be caused by many situations as follows:
lUndersized wiring (single strand example)
lCorrosion on switch contacts
lLoose wire connections or splices.
SGI853

GI-30
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
If repairs are needed always use wire that is of the same or larger gauge.
MEASURING VOLTAGE DROP — ACCUMULATED METHOD
lConnect the DMM across the connector or part of the circuit you want to check. The positive lead of the
DMM should be closer to power and the negative lead closer to ground.
lOperate the circuit.
lThe DMM will indicate how many volts are being used to “push” current through that part of the circuit.
Note in the illustration that there is an excessive 4.1 volt drop between the battery and the bulb.
MEASURING VOLTAGE DROP — STEP-BY-STEP
The step-by-step method is most useful for isolating excessive drops in low voltage systems (such as those in
“Computer Controlled Systems”).
Circuits in the “Computer Controlled System” operate on very low amperage.
The (Computer Controlled) system operations can be adversely affected by any variation in resistance in the
system. Such resistance variation may be caused by poor connection, improper installation, improper wire
gauge or corrosion.
The step by step voltage drop test can identify a component or wire with too much resistance.
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SAIA0258E

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Control Unit Circuit Test
System Description:When the switch is ON, the control unit lights up the lamp.
INPUT-OUTPUT VOLTAGE CHART
The voltage value is based on the body ground.
*:If high resistance exists in the switch side circuit (caused by a single strand), terminal 1 does not detect battery voltage. Control unit
does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not supply power to light up the
lamp.
INPUT-OUTPUT VOLTAGE CHART
The voltage value is based on the body ground.
*:If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0V. Control unit does
not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to light up the lamp.
MGI034A
Pin
No.Item ConditionVoltage
value [V]In case of high resistance such as single strand [V] *
1 SwitchSwitch ON Battery voltage Lower than battery voltage Approx. 8 (Example)
Switch OFF Approx. 0 Approx. 0
2LampSwitch ON Battery voltage Approx. 0 (Inoperative lamp)
Switch OFF Approx. 0 Approx. 0
MGI035A
Pin
No.Item ConditionVoltage
value [V]In case of high resistance such as single strand [V] *
1 LampSwitch ON Approx. 0 Battery voltage (Inoperative lamp)
Switch OFF Battery voltage Battery voltage
2SwitchSwitch ON Approx. 0 Higher than 0 Approx. 4 (Example)
Switch OFF Approx. 5 Approx. 5

GI-32
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Control Units and Electrical Parts
EAS001H1
PRECAUTIONS
lNever reverse polarity of battery terminals.
lInstall only parts specified for a vehicle.
lBefore replacing the control unit, check the input and output and
functions of the component parts.
lDo not apply excessive force when disconnecting a connector.
lIf a connector is installed by tightening bolts, loosen bolt mount-
ing it, then take it out by hand.
lBefore installing a connector, make sure the terminal is not bent
or damaged, and then correctly connect it.
When installing a connector by tightening bolts, fix it by tighten-
ing the mounting bolt until the painted projection of the connec-
tor becomes even with the surface.
lFor removal of the lever type connector, pull the lever up to the
direction pointed to by the arrow A in the figure, and then
remove the connector.
lFor installation of the lever type connector, pull down the lever to
the direction pointed by the arrow B in the figure, and then push
the connector until a clicking noise is heard.
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SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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lDo not apply excessive shock to the control unit by dropping or
hitting it.
lBe careful to prevent condensation in the control unit due to
rapid temperature changes and do not let water or rain get on it.
If water is found in the control unit, dry it fully and then install it in
the vehicle.
lBe careful not to let oil to get on the control unit connector.
lAvoid cleaning the control unit with volatile oil.
lDo not disassemble the control unit, and do not remove the
upper and lower covers.
lWhen using a DMM, be careful not to let test probes get close to
each other to prevent the power transistor in the control unit
from damaging battery voltage because of short circuiting.
lWhen checking input and output signals of the control unit, use
the specified check adapter.
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TERMINOLOGY
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Nonvolatile random access memory NVRAM ***
On board diagnostic system OBD system Self-diagnosis
Open loop OL Open loop
Oxidation catalyst OC Catalyst
Oxidation catalytic converter system OC system ***
Oxygen sensor O2S Exhaust gas sensor
Park position switch *** Park switch
Park/neutral position switch PNP switchPark/neutral switch
Inhibitor switch
Neutral position switch
Periodic trap oxidizer system PTOX system ***
Positive crankcase ventilation PCV Positive crankcase ventilation
Positive crankcase ventilation valve PCV valve PCV valve
Powertrain control module PCM ***
Programmable read only memory PROM ***
Pulsed secondary air injection control sole-
noid valvePAIRC solenoid valve AIV control solenoid valve
Pulsed secondary air injection system PAIR system Air induction valve (AIV) control
Pulsed secondary air injection valve PAIR valve Air induction valve
Random access memory RAM ***
Read only memory ROM ***
Scan tool ST ***
Secondary air injection pump AIR pump ***
Secondary air injection system AIR system ***
Sequential multiport fuel injection system SFI system Sequential fuel injection
Service reminder indicator SRI ***
Simultaneous multiport fuel injection sys-
tem*** Simultaneous fuel injection
Smoke puff limiter system SPL system ***
Supercharger SC ***
Supercharger bypass SCB ***
System readiness test SRT ***
Thermal vacuum valve TVV Thermal vacuum valve
Three way catalyst TWC Catalyst
Three way catalytic converter system TWC system ***
Three way + oxidation catalyst TWC + OC Catalyst
Three way + oxidation catalytic converter
systemTWC + OC system ***
Throttle body TBThrottle chamber
SPI body
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TP Throttle position
Throttle position sensor TPS Throttle sensor
Throttle position switch TP switch Throttle switch
Torque converter clutch solenoid valve TCC solenoid valveLock-up cancel solenoid
Lock-up solenoid NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

GW-1
GLASSES, WINDOW SYSTEM & MIRRORS
IBODY
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SECTIONGW
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GLASSES, WINDOW SYSTEM & MIRRORS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” .................................................................. 3
Precautions for Procedures without Cowl Top Cover..... 3
Handling for Adhesive and Primer ........................... 3
Trouble Diagnosis Precaution .................................. 3
PREPARATION ........................................................... 4
Commercial Service Tool ......................................... 4
SQUEAK AND RATTLE TROUBLE DIAGNOSES..... 5
Work Flow ................................................................ 5
CUSTOMER INTERVIEW ..................................... 5
DUPLICATE THE NOISE AND TEST DRIVE ....... 6
CHECK RELATED SERVICE BULLETINS ........... 6
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 6
REPAIR THE CAUSE ........................................... 6
CONFIRM THE REPAIR ....................................... 7
Generic Squeak and Rattle Troubleshooting ........... 7
INSTRUMENT PANEL .......................................... 7
CENTER CONSOLE ............................................. 7
DOORS ................................................................. 7
TRUNK .................................................................. 8
SUNROOF/HEADLINING ..................................... 8
SEATS ................................................................... 8
UNDERHOOD ....................................................... 8
Diagnostic Worksheet .............................................. 9
WINDSHIELD GLASS ...............................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
POWER WINDOW SYSTEM .................................... 15
Component Parts and Harness Connector Location... 15
System Description ................................................ 15
MANUAL OPERATION ....................................... 16
AUTO OPERATION ............................................ 18
POWER WINDOW LOCK ................................... 18
DRIVER WINDOW ANTI-PINCH FUNCTION ..... 18
Schematic .............................................................. 19Wiring Diagram – WINDOW – ................................ 20
Terminal and Reference Value for Power Window
Main Switch ............................................................ 24
Terminal and Reference Value for Each Door's
Power Window Switch ............................................ 24
Terminal and Reference Value for BCM ................. 25
Work Flow ............................................................... 25
Trouble Diagnosis Symptom Chart ......................... 25
BCM Power Supply and Ground Circuit Check ...... 26
Power Window Main Switch Power Supply and
Ground Circuit Check ............................................. 27
Driver Side Power Window Motor Check ............... 28
Passenger Side Power Window Motor Circuit
Check ..................................................................... 29
Rear LH Power Window Motor Circuit Check ......... 30
Rear RH Power Window Motor Circuit Check ........ 31
Passenger Side Power Window Circuit Check ....... 31
Rear LH Power Window Circuit Check ................... 32
Rear RH Power Window Circuit Check .................. 33
Power Window Switch Check 1 .............................. 33
Power Window Switch Check 2 .............................. 34
FRONT DOOR GLASS AND REGULATOR ............. 35
Removal and Installation ........................................ 35
DOOR GLASS ..................................................... 35
REGULATOR ASSEMBLY .................................. 36
Disassembly and Assembly .................................... 37
REGULATOR ASSEMBLY .................................. 37
Inspection after Installation ..................................... 37
FITTING INSPECTION ....................................... 37
RESET OPERATION ........................................... 37
REAR DOOR GLASS AND REGULATOR ............... 38
Removal and Installation ........................................ 38
DOOR GLASS ..................................................... 38
REGULATOR ASSEMBLY .................................. 39
Disassembly and Assembly .................................... 40
REGULATOR ASSEMBLY .................................. 40
Inspection after Installation ..................................... 40
FITTING INSPECTION ....................................... 40

PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EIS00CED
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
lTo 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.
lImproper 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.
lDo 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 harnesses or
harness connectors.
Precautions for Procedures without Cowl Top CoverEIS00DGM
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Handling for Adhesive and PrimerEIS00B7B
lDo not use an adhesive which is past its usable date. Shelf life of this product is limited to six months after
the date of manufacture. Carefully adhere to the expiration or manufacture date printed on the box.
lKeep primers and adhesive in a cool, dry place. Ideally, they should be stored in a refrigerator.
lOpen the seal of the primer and adhesive just before application. Discard the remainder.
lBefore application, be sure to shake the primer container to stir the contents. If any floating material is
found, do not use it.
lIf any primer or adhesive contacts the skin, wipe it off with gasoline or equivalent and wash the skin with
soap.
lWhen using primer and adhesive, always observe the precautions in the instruction manual.
Trouble Diagnosis PrecautionEIS00B7C
When you read wiring diagrams, refer to the following:
lGI-15, "How to Read Wiring Diagrams"
lPG-4, "POWER SUPPLY ROUTING CIRCUIT"
When you perform trouble diagnosis, refer to the following:
lGI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
lGI-24, "How to Perform Efficient Diagnosis for an Electrical Incident"
Check for any service bulletins before servicing the vehicle.
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PREPARATION
PREPARATION
PFP:00002
Commercial Service ToolEIS00B7E
Tool name Description
Engine ear Locating the noise
Suction lifter Holding the door glass
SIIA0995E
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