JUNCTION BLOCK TERMINAL CALL-OUT WITH DRL
CAV. CKT. WIRE
GAUGECOLOR FUNCTION
1 L09 18 BLK/WT BATTERY INTPUT MAIN FEED
2 L61 18 LG LEFT FRONT T/S OUTPUT TO LAMP
3 L60 18 TN RIGHT FRONT T/S OUTPUT TO LAMP
4 L63 18 DG/RD LEFT REAR T/S OUTPUT TO LAMP
5 L62 18 BR/RD RIGHT REAR T/S OUTPUT TO LAMP
6 A22D 20 BK/OR IGNITION INPUT SENSE ONLY
7 L305 22 LB/WT LEFT T/S SWITCH INPUT SENSE ONLY
8 L302 22 LB/YL RIGHT T/S SWITCH INPUT SENSE ONLY
9 L91 22 DB/PK HAZARD SWITCH INPUT SENSE ONLY
10 G09 22 GY/BK PARK BRAKE SWITCH INPUT SENSE ONLY
11 Z01 14 BK GROUND MAIN GRD.
12 L93 22 RD/YL HEADLAMP RELAY SWITCH
INPUTSENSE ONLY
NSTURN SIGNAL AND FLASHERS 8J - 5
DIAGNOSIS AND TESTING (Continued)
WINDSHIELD WIPERS AND WASHERS
CONTENTS
page page
REAR WIPER AND WASHER................ 9WINDSHIELD WIPERS AND WASHER......... 1
WINDSHIELD WIPERS AND WASHER
INDEX
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES................ 1
FAILED PARK SWITCH.................... 2
MULTI-FUNCTION SWITCH................. 4
REMOVAL AND INSTALLATION
MULTI-FUNCTION SWITCH................. 4
WINDSHIELD WASHER BOTTLE............. 4
WINDSHIELD WIPER BLADE ELEMENT....... 6WINDSHIELD WIPER BLADE................ 5
WINDSHIELD WIPER MOTOR............... 6
WIPER ARM............................. 7
WIPER LINKAGE......................... 7
WIPER UNIT............................ 7
CLEANING AND INSPECTION
WIPER BLADES.......................... 8
ADJUSTMENTS
WIPER ARM ALIGNMENT.................. 8
GENERAL INFORMATION
INTRODUCTION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, RESTRAINT SYSTEMS FOR
SAFETY PRECAUTIONS. DISCONNECT THE NEGA-
TIVE CABLE FROM THE BATTERY BEFORE SER-
VICING COMPONENTS INVOLVING THE AIRBAG
SYSTEM. ACCIDENTAL DEPLOYMENT OF AIRBAG
AND PERSONAL INJURY CAN RESULT.
The windshield wipers can be operated with the
windshield wiper switch when the ignition switch is
in the RUN or ACCESSORY positions. The wind-
shield wiper system is protected by a 40 amp fuse (9)
located in the Power Distribution Center (PDC) in
the engine compartment. The windshield washer cir-
cuit is protected by a 6 amp fuse (9) located in the
Junction Block. The wiper motor has permanent
magnetic fields. The speeds are determined by cur-
rent flow to the appropriate set of brushes inside the
motor. The current flow is controlled by the multi-
function switch stalk mounted wiper switch, high
speed/low speed relays located in the PDC. The speed
sensitive intermittent wiper is controlled by the BodyControl Module (BCM). The intermittent mode, with
the vehicle traveling greater than 10.4 mph, has a
range of 0.5 to 18 seconds. With the vehicle traveling
less than 10.4 mph, and the time delay is not
adjusted, time delay doubles to a range of 1 to 36
seconds. The wiper arms will park at the base of the
windshield just above the cowl cover after the wiper
switch is turned OFF.
The windshield wiper motor and linkage is located
in an integral wiper unit at the rear of the engine
compartment. The wiper unit must be removed to
gain access to the wiper motor.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
The windshield wiper system operates in several
modes:
²Low and high speed normal wipe
²Speed sensitive intermittent wipe
²Wipe after wash
²Pulse wipe
²Park (switch OFF)
The windshield wiper circuits are continuously
monitored and controlled by the Body Control Mod-
NSWINDSHIELD WIPERS AND WASHERS 8K - 1
WIPER AND WASHER SYSTEMS
CONTENTS
page page
HEADLAMP WASHERS................... 1
HEADLAMP WASHERS
INDEX
page page
GENERAL INFORMATION
INTRODUCTION........................ 1
REMOVAL AND INSTALLATION
HEADLAMP WASHER NOZZLE............. 1HEADLAMP WASHER PUMP............... 2
WINDSHIELD/HEADLAMP WASHER
RESERVOIR.......................... 1
GENERAL INFORMATION
INTRODUCTION
Headlamp washers are available as a factory-in-
stalled option on this model. The headlamp washers
on this vehicle work in conjunction with the wind-
shield washers. The headlamp washers are enabled
with the headlamps ªONº and the windshield wash-
ers activated. With the windshield washers activated
the headlamp washers will spray for a preset amount
of time controlled by a relay.
The headlamp washer system utilizes a separate pump
that is attached to the windshield washer reservoir. The
headlamp washer pump feeds two nozzles that are
mounted in the front fascia of the vehicle. These nozzles
spray the headlamps when the system is activated.
REMOVAL AND INSTALLATION
WINDSHIELD/HEADLAMP WASHER RESERVOIR
Removal
(1) Remove the right headlamp assembly. Refer to
Group 8L, Lamps.
(2) Partially remove the inner fender well as
needed to gain access to the reservoir.
(3)
Disconnect the windshield washer pump, rear
washer pump and headlamp washer pump electrical con-
nectors.
(4) Disconnect the headlamp washer pump hose.(5) Partially remove the front fascia to aid in the
removal of the reservoir.
(6) Remove the reservoir mounting bolts. (Fig. 1)
(7) Slide the reservoir rearward and remove from
the vehicle.
Installation
(1) For installation, reverse the above procedures
HEADLAMP WASHER NOZZLE
Removal
(1) Remove the headlamp assembly. Refer to
Group 8L, Lamps.
(2)
Disconnect the hose at the headlamp washer nozzle.
(3) Remove the headlamp washer nozzle retaining
nuts and remove the nozzle from the front fascia.
NS/GSWIPER AND WASHER SYSTEMS 8K - 1
LAMPS
CONTENTS
page page
BULB APPLICATION...................... 25
EXTERIOR LAMP BULB SERVICE............ 9
EXTERIOR LAMP SERVICE................. 14HEADLAMP ALIGNMENT................... 5
INTERIOR LAMPS........................ 18
LAMP DIAGNOSIS........................ 1
LAMP DIAGNOSIS
INDEX
page page
GENERAL INFORMATION
ELECTRONIC DAYTIME RUNNING LIGHT (DRL).1
GENERAL INFORMATION.................. 1SAFETY PRECAUTIONS................... 1
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES................ 2
GENERAL INFORMATION
GENERAL INFORMATION
NS vehicles use lighting on the interior and exte-
rior of the vehicle for illuminating and indicating
purposes. Lighting circuits are protected by fuses.
Lighting circuits require an overload protected power
source, on/off device, lamps and body ground to oper-
ate properly. Plastic lamps require a wire in the har-
ness to supply body ground to the lamp socket.
Replace sockets and bulbs that are corroded.
Some of the interior and exterior lighting functions
are governed by the body controller. The headlamp,
dome, and the door ajar switches provide signals to
the body controller. The body controller in turn acti-
vates relay(s) in order to provide either a ground or
feed line to the appropriate lamp(s).
Wire connectors can make intermittent contact or
become corroded. Before coupling wire connectors,
inspect the terminals inside the connector. Male ter-
minals should not be bent or disengaged from the
insulator. Female terminals should not be sprung
open or disengaged from the insulator. Bent and
sprung terminals can be repaired using needle nose
pliers and pick tool. Corroded terminals appear
chalky or green. Corroded terminals should be
replaced to avoid recurrence of the problem symp-
toms.
Begin electrical system failure diagnosis by testing
related fuses in the fuse block and power distribution
center. Verify that bulbs are in good condition andtest continuity of the circuit ground. Refer to Group
8W, Wiring Diagrams, for component location and cir-
cuit information.SAFETY PRECAUTIONS
WARNING: EYE PROTECTION SHOULD BE USED
WHEN SERVICING GLASS COMPONENTS. PER-
SONAL INJURY CAN RESULT.
CAUTION: Do not touch the glass of halogen bulbs
with fingers or other possibly oily surface, reduced
bulb life will result.
Do not use bulbs with higher candle power than
indicated in the Bulb Application table at the end of
this group. Damage to lamp and/or Daytime Run-
ning Lamp Module can result.
Do not use fuses, circuit breakers or relays hav-
ing greater amperage value than indicated on the
fuse panel or in the Owners Manual.
When it is necessary to remove components to ser-
vice another, it should not be necessary to apply
excessive force or bend a component to remove it.
Before damaging a trim component, verify hidden
fasteners or captured edges are not holding the com-
ponent in place.
ELECTRONIC DAYTIME RUNNING LIGHT (DRL)
The Combination Flasher/DRL is a module provid-
ing turn signal, hazard warning, and daytime run-
NSLAMPS 8L - 1
ning light functions (for Canadian vehicles), and has
been designed with internal relays to take advantage
of low current switching requirements in the vehicle.
It is plugged into the junction block at positions
three and four (Fig. 1), where all wiring associated
with its operation is terminated. The junction block
is adjacent to and left of the steering column of the
vehicle. For diagnostic information refer to Group 8J,
Turn Signal and Flashers.
On vehicles built for use in the United States, only
position four is used. Vehicles built for use in Canada
utilize both positions three and four.
To gain access to the device, remove the lower
steering column cover and knee blocker. Refer to
Group 8E, Instrument Panel and Gauges.SYSTEM FUNCTION
The combination-flasher/DRL may be operated in
its hazard warning mode either with or without the
ignition circuit being active. However, in order to
operate in the turn signal mode or the DRL mode,
the ignition circuit must be completed to the module.
While the combination-flasher portion is idle, there
is no current drawn through the module. The device
does not become active in the turn signal or hazard
warning modes until a signal ground circuit is sup-
plied to either of the turn signal inputs or the hazard
warning input. With the ignition OFF, there is no
current drawn through the module.
While the ignition is ON, the front turn signal fil-
aments are illuminated steadily thus providing the
DRL function. The DRL function may be inhibited by
applying a signal ground input from either the park
brake circuit or the headlamp relay activation circuit.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
When a vehicle experiences problems with the
headlamp system, verify the condition of the battery
connections, charging system, headlamp bulbs, wire
connectors, relay, high beam dimmer switch and
headlamp switch. Refer to Group 8W, Wiring Dia-
grams, for component locations and circuit informa-
tion.
Fig. 1 Junction Block Terminal PINS
8L - 2 LAMPSNS
GENERAL INFORMATION (Continued)
LAMPS
CONTENTS
page page
BULB APPLICATION..................... 17
HEADLAMP ALIGNMENT.................. 5
LAMP BULB SERVICE.................... 8LAMP DIAGNOSIS....................... 1
LAMP SERVICE........................ 13
LAMP DIAGNOSIS
INDEX
page page
GENERAL INFORMATION
HEADLAMP LEVELING MOTOR............. 2
INTRODUCTION........................ 1SAFETY PRECAUTIONS.................. 1
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES.............. 2
GENERAL INFORMATION
INTRODUCTION
GS vehicles use lighting on the interior and exte-
rior of the vehicle for illuminating and indicating
purposes. Lighting circuits are protected by fuses.
Lighting circuits require an overload protected power
source, on/off device, lamps and body ground to oper-
ate properly. Plastic lamps require a wire in the har-
ness to supply body ground to the lamp socket.
Replace sockets and bulbs that are corroded.
Some of the interior and exterior lighting functions
are governed by the body controller. The headlamp,
dome, and the door ajar switches provide signals to
the body controller. The body controller in turn acti-
vates relay(s) in order to provide either a ground or
feed line to the appropriate lamp(s).
Wire connectors can make intermittent contact or
become corroded. Before coupling wire connectors,
inspect the terminals inside the connector. Male ter-
minals should not be bent or disengaged from the
insulator. Female terminals should not be sprung
open or disengaged from the insulator. Bent and
sprung terminals can be repaired using needle nose
pliers and pick tool. Corroded terminals appear
chalky or green. Corroded terminals should be
replaced to avoid recurrence of the problem symp-
toms.Begin electrical system failure diagnosis by testing
related fuses in the fuse block and power distribution
center. Verify that bulbs are in good condition and
test continuity of the circuit ground. Refer to Group
8W, Wiring Diagrams, for component location and cir-
cuit information.
SAFETY PRECAUTIONS
WARNING: EYE PROTECTION SHOULD BE USED
WHEN SERVICING GLASS COMPONENTS. PER-
SONAL INJURY CAN RESULT.
CAUTION: Do not touch the glass of halogen bulbs
with fingers or other possibly oily surface, reduced
bulb life will result.
Do not use bulbs with higher candle power than
indicated in the Bulb Application table at the end of
this group. Damage to lamp and/or Daytime Run-
ning Lamp Module can result.
Do not use fuses, circuit breakers or relays hav-
ing greater amperage value than indicated on the
fuse panel or in the Owners Manual.
When it is necessary to remove components to ser-
vice another, it should not be necessary to apply
excessive force or bend a component to remove it.
Before damaging a trim component, verify hidden
fasteners or captured edges are not holding the com-
ponent in place.
NS/GSLAMPS 8L - 1
HEADLAMP LEVELING MOTOR
This vehicle is equipped with a remote headlamp
leveling system. This system allows the driver to
adjust the vertical headlamp aim from the interior of
the vehicle to compensate for passenger or cargo
load. A headlamp leveling switch is located in the
instrument panel and controls the headlamp leveling
motor found on the back of the headlamp module.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
When a vehicle experiences problems with the head-
lamp system, verify the condition of the battery connec-
tions, charging system, headlamp bulbs, wire
connectors, relay, high beam dimmer switch and head-
lamp switch. Refer to Group 8W, Wiring Diagrams, for
component locations and circuit information.
HEADLAMP DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
HEADLAMPS ARE DIM
WITH ENGINE IDLING OR
IGNITION TURNED OFF1. Loose or corroded battery cables. 1. Clean and secure battery cable clamps
and posts.
2. Loose or worn alternator drive
belt.2. Adjust or replace alternator drive belt.
3. Charging system output too low. 3. Test and repair charging system. Refer
to Group 8A.
4. Battery has insufficient charge. 4. Test battery state-of -charge. Refer to
Group 8A.
5. Battery is sulfated or shorted. 5. Load test battery. Refer to Group 8A.
6. Poor lighting circuit Z1-ground. 6. Test for voltage drop across Z1-ground
locations. Refer to Group 8W.
HEADLAMP BULBS BURN
OUT FREQUENTLY1. Charging system output too high. 1. Test and repair charging system. Refer
to Group 8A.
2. Loose or corroded terminals or
splices in circuit.2. Inspect and repair all connectors and
splices. Refer to Group 8W.
HEADLAMPS ARE DIM
WITH ENGINE RUNNING
ABOVE IDLE1. Charging system output too low. 1. Test and repair charging system. Refer
to Group 8A.
2. Poor lighting circuit Z1-ground. 2. Test for voltage drop across Z1-ground
locations. Refer to Group 8W.
3. High resistance in headlamp
circuit.3. Test amperage draw of headlamp circuit.
HEADLAMPS FLASH
RANDOMLY1. Poor lighting circuit Z1-ground. 1. Test for voltage drop across Z1-ground
locations, refer to Group 8W.
2. High resistance in headlamp
circuit.2. Test amperage draw of headlamp circuit.
3. Loose or corroded terminals or
splices in circuit.3. Inspect and repair all connectors and
splices. Refer to Group 8W.
HEADLAMPS DO NOT
ILLUMINATE1. No voltage to headlamps. 1. Repair open headlamp circuit. Refer to
Group 8W.
2. No Z1-ground at headlamps. 2. Repair circuit ground. Refer to Group
8W.
3. Faulty headlamp switch. 3. Replace headlamp switch.
4. Faulty headlamp dimmer
(multi-function) switch.4. Replace multi-function switch.
5. Broken connector terminal or wire
splice in headlamp circuit.5. Repair connector terminal or wire splice.
6. Defective or burned out bulb. 6. Replace bulb.
7. Body controller malfunction. 7. Refer to appropriate body controller
diagnostics.
8L - 2 LAMPSNS/GS
GENERAL INFORMATION (Continued)
ELECTRICALLY HEATED SYSTEMS
CONTENTS
page page
DESCRIPTION AND OPERATION
HVAC MOUNTED SWITCH................. 1
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
GRID LINE TEST......................... 2SYSTEM TEST.......................... 2
SERVICE PROCEDURES
GRID LINE AND TERMINAL REPAIR......... 3
DESCRIPTION AND OPERATION
INTRODUCTION
The electrically heated Rear Window Defogger (Fig.
1), Heated Power Side View Mirrors, and Heated
Windshield Wiper De-icer (Fig. 2) is available on NS
vehicles.
The Rear Window Defogger system consists of two
vertical bus bars linked by a series of grid lines on
the inside surface of the rear window. The electrical
circuit consists of the rear defogger switch in the
HVAC and a relay with timer switch to turn OFF the
system after ten minutes. The main feed circuit is
protected by fuse one (40 amp) in the Junction Block.
The rear defogger switch and relay also activates the
heated power side view mirrors and heated wind-
shield wiper de-icer. The HVAC rear defogger switch
is protected by fuse ten (10 amp) in the Junction
Block. The heated mirror circuit is protected by fuse
12 (10 amp) in the junction block. The heated wind-
shield wiper de-icer circuit is protected by fuse 21 (25
amp) in the Junction Block.
The Heated Windshield Wiper Deicer is also acti-
vated when the DEFROST mode is selected on the
HVAC. In the DEFROST mode the rear defogger
relay/timer is bypassed, the heated windshield wiper
de-icer will stay ON until the another mode is
selected. For circuit information and component loca-
tion refer to Group 8W, Wiring Diagrams.
CAUTION: Since grid lines can be damaged or
scraped off with sharp instruments, care should be
taken in cleaning the glass or removing foreign
materials, decals or stickers. Normal glass cleaning
solvents or hot water used with rags or toweling is
recommended.
HVAC MOUNTED SWITCH
The rear window defogger switch is integrated into
the HVAC (Fig. 3). An LED indicator will illuminate
when the switch is activated. The switch energizesthe timing circuit and activates the rear window
defogger relay. The relay controls the current to flow
to the grids of the rear window defogger, heated
power side view mirrors and the heated windshield
wiper de-icer. The defogger relay will be on for
approximately 10 minutes or until the control switch
or ignition is turned off.
Fig. 1 Rear Window Defogger
Fig. 2 Heated Windshield Wiper De-icer
NSELECTRICALLY HEATED SYSTEMS 8N - 1