1997 DODGE NEON check engine

Downloaded from www.Manualslib.com manuals search engine 8W-43 AIRBAG SYSTEM
DESCRIPTION AND OPERATION
AIRBAG CONTROL MODULE (ACM)
Two different circuits supply battery voltage from
the fuse block to the Airbag Control Module (ACM),
F15 and F25. The F15 and F25 circuits are connected
to separate bus bars internal to the fuse block. Dif-
ferent circuits from the Power Distribution Center
(PDC) and ignition switch supply battery voltage to
the fuse block bus bars.
The F25 circuit supplies battery voltage to the
ACM only when the ignition switch is in the RUN
position. The F15 circuit powers the ACM when the
ignition switch is in either the START or RUN posi-
tion.
An internal bus bar in the ignition switch connects
the A1 circuit from the PDC to the A21 circuit when
the switch is either the START or RUN position. The
A21 circuit supplies battery voltage to the bus bar in
the fuse block that feeds the F15 circuit. A 30 amp
fuse in the PDC protects the A1 and A21 circuits. A
10 amp fuse in the fuse block, cavity 9, protects the
F15 circuit.
When the ignition switch is in the RUN position, it
connects the A2 circuit from the PDC to the A22 cir-
cuit. The A22 circuit supplies battery voltage to the
fuse block bus bar that feeds the F25 circuit. A 40
amp fuse in the PDC protects the A2 and A22 cir-
cuits. A 10 amp fuse in the fuse block, cavity 5, pro-
tects the F25 circuit.
Circuits D1 and D2 are connected to the CCD Bus
and the ACM. The CCD bus is used to provide com-
munications between modules and the universal data
link connector.
The ACM has a case ground and an external dedi-
cated ground, circuit Z6. The dedicated ground con-
nects to the instrument panel right center support.
AIRBAG IMPACT SENSOR
The Airbag system uses a sensor internal to the
Airbag Control Module (ACM) to detect impact. For
information regarding operation of this sensor, refer
to the appropriate group of the Service Manual.
AIRBAG SQUIB (AIRBAG IGNITER)
DRIVERS SIDE AIRBAG
Two circuits, R43 and R45, connect the ACM to the
drivers side airbag module squib (igniter) after pass-
ing through the clock spring connector. Circuit R43
from cavity 3 of the ACM 4-way connector connects
to the squib. Circuit R45 from cavity 4 of the ACM
4-way connector connects to the squib. R43 and R45
are a twisted pair of wires.
PASSENGERS SIDE AIRBAG
Two circuits, R42 and R44, connect the ACM to the
passengers side airbag module squib (igniter). Circuit
R42 from cavity 1 of the ACM 4-way connector con-
nects to the squib. Circuit R44 from cavity 2 of the
ACM 4- way connector connects to the squib. R42
and R44 are a twisted pair of wires.
Circuits R50 and R51 are connected from the ACM
to the passangers airbag. These circuits are used to
monitor the pressure switch.
AIRBAG WARNING LAMP
The Airbag Warning lamp is used to alert the oper-
ator of a problem with the Airbag system. The lamp
is illuminated when the Airbag Control Module
(ACM) grounds the R41 circuit. Refer to the appro-
priate section of the Service Manual or Diagnostic
Test Procedures Manual to diagnosis this system.
HELPFUL INFORMATION
²Check for blown fuses in the circuit that connect
to the ignition switch and those that connect to the
ACM.
²While the bus bars in the fuse block power the
ACM, they also feed additional components on sepa-
rate fuse protected circuits.
²The ACM has a case ground and an external
dedicated ground. The dedicated ground connects to
the instrument panel right center support.
PL8W - 43 AIRBAG SYSTEM 8W - 43 - 5

Downloaded from www.Manualslib.com manuals search engine The second ground path is through the headlamp
switch. Circuit M23 is spliced in with the time out
relay. When the operator turns the headlamp switch
to the dome lamp ON position, a ground path is pro-
vided through the switch on the Z1 circuit. This
ground terminates at the instrument panel left cen-
ter support.
On vehicles equipped with Remote Keyless Entry
(RKE) the M23 circuit is spliced to the RKE module.
This allows the lamp to be turned ON when a valid
signal is reveived by the RKE module from the trans-
mitter.
MAP/READING LAMPS
The map/reading lamps are powered by the M1 cir-
cuit from the Power Distribution Center (PDC). This
circuit is the Ignition-Off Draw circuit and protected
by a 10 amp fuse. The M1 circuit is spliced and pro-
vides power for the visor/vanity lamps, radio, power
mirrors, dome lamp, time delay relay, and other inte-
rior lamps.
Ground for the lamps is provided from two sources.
One is the Z3 circuit which is spliced in with the
glove box lamp and terminates at the instrument
panel left center support. The second ground is pro-
vided on circuit M23. This circuit is spliced in with
the time out relay so the lamps will turn ON when
any door is OPENED.
On vehicles equipped with Remote Keyless Entry
(RKE) the M23 circuit, which is the ground circuit
when a door is OPENED, is connected to the RKE
module. The module will provide a ground path for
the lamps with a valid signal from the transmitter.
GLOVE BOX LAMP
The glove box lamp receives power on the M1 cir-
cuit from the 10 amp fuse located in the Power Dis-
tribution Center (PDC). A switch, wired in series
after the lamp, CLOSES when the glove box door is
opened, and completes a path to ground on the Z3
circuit.
The Z3 circuit is spliced in with the ash receiver
lamp, PRNDL lamp, and the time delay relay. The Z3
circuit terminates at the instrument panel left center
support.
ASH RECEIVER LAMP
The ash receiver lamp receives power on the E2
circuit from the 4 amp fuse located in the fuse block
in cavity 12. The fuse receives power from the head-
lamp switch. Circuit E2, which is HOT at all times,
also powers the Transmission Range Indicator
(PRNDL) lamp.
When the headlamp switch is moved to the PARK
or ON position, current flows through the fuse to the
ash receiver lamp. The ground for the lamp is sup-
plied on the Z3 circuit, and terminates at the instru-
ment panel left center support. This circuit is also
spliced in with the PRNDL lamp, the ignition switch
lamp, and the glove box lamp.
UNDERHOOD LAMP
Power for the underhood lamp is supplied on cir-
cuit M1. This is the Ignition-Off Draw (IOD) circuit
and is protected by a 10 amp fuse located in the
Power Distribution Center (PDC).
When the hood is raised a ground path is com-
pleted through the mercury switch to a case ground
illuminating the lamp.
TRUNK LAMP
The trunk lamp uses a case-grounded switch
located on the trunk latch. The switch is normally
OPEN. When the deck lid is opened, the switch
CLOSES, completing a path to ground on circuit M4.
The M1 circuit provides power to the lamp, and is
HOT at all times.
HELPFUL INFORMATION
²Check the 10 amp fuse located in the Power Dis-
tribution Center (PDC) for the trunk lamp, under-
hood lamp, visor/vanity lamps, dome lamp, time
delay relay, and the glove box lamp.
²Check for a good ground at the instrument panel
left center support.
²Check the door switches for a good ground.
²Check the 4 amp fuse in the fuse block, cavity
12.
8W - 44 - 6 8W - 44 INTERIOR LIGHTINGPL
DESCRIPTION AND OPERATION (Continued)

Downloaded from www.Manualslib.com manuals search engine 8W-47 AUDIO SYSTEMS
INDEX
page page
DESCRIPTION AND OPERATION
HELPFUL INFORMATION.................. 5
RADIO ILLUMINATION.................... 5RADIO MEMORY........................ 5
RADIO OPERATION...................... 5
SPEAKERS............................. 5
DESCRIPTION AND OPERATION
RADIO OPERATION
When the ignition switch is in either the ACCES-
SORY or RUN position, it connects circuit A1 from
the Power Distribution Center (PDC) to circuit A31.
Circuit A31 powers a bus bar in the fuse block. The
bus bar feeds two circuits, one of which is circuit
X12. Circuit X12 powers the radio. A 10 amp fuse, in
cavity 16 of the fuse block, protects circuit X12.
Circuit Z9 supplies the ground path for the radio.
The grounding point for circuit Z9 is the instrument
panel right center support.
RADIO MEMORY
Circuit M1 from the Power Distribution Center
(PDC) supplies power for the radio memory. The cir-
cuit contains the Ignition Off Draw (IOD) fuse. The
IOD fuse is removed during vehicle shipping to pre-
vent excessive battery draw.
RADIO ILLUMINATION
When the parking lamps or headlamps are ON, cir-
cuits E2 and L7 power the radio illumination lamps
and park lamps. Circuit E2 feeds the illumination
lamp. Circuit L7 feeds the park lamps of the radio.
Circuit F33 feeds circuit L7.
A 4 amp fuse, in cavity 12 of the fuse block, pro-
tects circuit E2. A 15 amp fuse, in cavity 2 of the fuse
block, protects circuits L7 and F33.
SPEAKERS
Circuit X53 feeds the speaker in the left front door.
Circuit X55 is the return from the speaker to the
radio. On the premium system the X53 and X55 cir-
cuits are connected in with the instrument panel
speaker.
Circuit X54 feeds the speaker in the right front
door. Circuit X56 is the return from the speaker to
the radio. On the premium system the X54 and X56
circuits are connected in with the instrument panel
speaker.
Circuit X51 feeds the left rear speaker. Circuit X57
is the return from the speaker to the radio.Circuit X52 feeds the right rear speaker. Circuit
X58 is the return from the speaker to the radio.
HELPFUL INFORMATION
²Circuit M1 also powers the vanity lamps, glove
box lamp, time delay relay, dome lamps, underhood
lamp, cargo lamp, and power mirrors.
²If the radio does not operate, check for blown
fuses in circuits A1 and X12.
²Circuits A3, and F33 feed the L7 circuit.
²If the radio illumination lamps do not operate,
check for blown fuses in circuits E2, F33, and A3.
PL8W - 47 AUDIO SYSTEMS 8W - 47 - 5

Downloaded from www.Manualslib.com manuals search engine 8W-48 REAR WINDOW DEFOGGER
DESCRIPTION AND OPERATION
REAR WINDOW DEFOGGER
The Rear Window Defogger system is powered by a
40 amp fuse located in the Power Distribution Center
(PDC) on circuit A4. This circuit is HOT at all times.
The system is also powered by a 10 amp fuse located
in cavity 8 of the fuse block, this fuse is HOT in the
RUN position only.
When the operator presses the rear window defog-
ger switch the contacts internal to the switch CLOSE
and the timer starts. When the switch is released the
timer circuity keeps the relay energized for the spec-
ified time.
Voltage is passed through the switch on the A4 cir-
cuit to the C15 circuit and then to the rear window
defogger grid. The grid consists of two bus bars and
grid lines that form a parallel circuit. When voltage
is passed through the grid, the grid lines heat up and
heat the rear window.
Grounding for the rear window defogger switch is
provided on the Z2 circuit and terminates at the
instrument panel right center support. The grid uses
the grounding point at the rear body in the right
wheel house.
When the system is in operation, a L.E.D. located
in the switch, indicates to the operator the system is
functioning. The switch is also illuminated when the
headlamp switch is in the PARK or ON position.
Power for the illumination circuit comes from the 4
amp fuse, located in cavity 12 of the fuse block, on
the E2 circuit.
HELPFUL INFORMATION
²Check the 40 amp fuse in the Power Distribu-
tion Center (PDC).
²Check the 10 amp fuse in cavity 8 of the fuse
block.
²Check for broken gird lines on the window.
²Check for a broken buss bar or disconnected
leads at the rear window.
²Check for a good ground at the rear body ground
located in the right rear wheel house.
PL8W - 48 REAR WINDOW DEFOGGER 8W - 48 - 3

Downloaded from www.Manualslib.com manuals search engine 8W-50 FRONT LIGHTING
INDEX
page page
GENERAL INFORMATION
INTRODUCTION......................... 7
DESCRIPTION AND OPERATION
FOG LAMPS (FRONT).................... 8HEADLAMP LEVELING MOTORS............ 8
HEADLAMPS........................... 7
PARKING LAMPS........................ 7
GENERAL INFORMATION
INTRODUCTION
The headlamp switch has 3 positions, ON, PARK
(parking lights) and OFF. Two circuits, L2 and L20
connect the headlamp switch to the headlamp dim-
mer/optical horn switch located in the multi-function
switch. The multi-function switch feeds the low and
high beams of the headlamps.
DESCRIPTION AND OPERATION
PARKING LAMPS
Circuit A3 in the Power Distribution Center (PDC)
connects to a bus bar in the fuse block. One of the
four circuits powered by the bus bar is circuit F33.
Circuit F33 connects to the headlamp switch. A 40
amp fuse in the PDC protects the A3 circuit. A 15
amp fuse, in cavity 2 of the fuse block, protects the
F33 circuit.
The headlamp switch has 3 positions, ON, PARK
(tail lamps) and OFF, plus a dimmer switch. When
the headlamp switch is in the PARK or ON position,
the switch connects circuit F33 to circuit L7. From
the headlamp switch, circuit L7 branches to power
the front parking lamps and rear tail lamps, lavalier
lamps, side marker lamps, and rear license plate
lamp.
GROUND CIRCUIT
Circuit Z1 provides ground for the parking lamps,
headlamps, lavalier lamps, tail lamps, side marker
lamps and rear license plate lamp although different
grounding points are used. Circuit Z1 also provides
the ground path for the headlamps and turn signals.
HELPFUL INFORMATION
²Check for a blown 40 amp fuse in the PDC.
²Check for a blown fuse in cavity 2 of the fuse
block.
²For the left front parking lamp, turn signal, side
marker lamp and left headlamp, the Z1 circuitgrounding point is the left side of the radiator closure
panel.
²For the right front parking lamp, turn signal,
side marker lamp and right headlamp, the Z1 circuit
grounding point is in the right fender side shield.
²Circuit L7 also feeds the radio, if equipped.
²When the headlamp switch is in the PARK or
ON position, the dimmer circuit, F33, also connects
to circuit E1. Circuit E1 powers the ash receiver
lamp, transmission range indicator lamp, instrument
panel cluster illumination lamps, HVAC control
lamp, heated rear window lamp, and radio lamp. A 4
amp fuse, in cavity 12 of the fuse block, protects cir-
cuit E1.
HEADLAMPS
The headlamp switch has 3 positions, ON, PARK
(parking lights) and OFF. Two circuits, L2 and L20
connect the headlamp switch to the headlamp dim-
mer/optical horn switch located in the multi-function
switch. The multi-function switch feeds the low and
high beams of the headlamps.
HEADLAMP SWITCH IN OFF OR PARKING
LAMP POSITION
Circuit A3 originates in the Power Distribution
Center (PDC) and supplies battery voltage for the
headlamp switch. A 40 amp fuse protects the A3 cir-
cuit. The headlamp switch has an internal 24 amp
circuit breaker that connects circuit A3 to either the
L2 or L20 circuits, depending on switch position.
In the OFF and PARK positions the headlamp
switch feeds the L20 circuit that connects to the
multi-function switch. Circuit L20 powers the high
beam circuit when the operator flashes the head-
lamps with the turn signal stalk of the multi-func-
tion switch. When the operator flashes the
headlamps with the stalk, the multi-function switch
connects the L20 circuit to the L3 circuit. The L3 cir-
cuit feeds the high beam of the headlamps.
HEADLAMP SWITCH IN ON POSITION
When the headlamp switch is in the ON position,
it connects the A3 circuit from the PDC to circuit L2.
PL8W - 50 FRONT LIGHTING 8W - 50 - 7

Downloaded from www.Manualslib.com manuals search engine Circuit L2 connects to the multi- function switch and
feeds the L4 circuit (for low beam operation). The L4
circuit connects to a bus bar in the fuse block. Cir-
cuits L43 and L44 connect to the bus bar in fuse
block and power the low beam headlamps. Circuit
L43 supplies voltage to the left headlamp. Circuit
L44 supplies voltage to the right headlamp. Both the
L43 and L44 circuits have separate 10 amp fuses
located in fuse block. Fuse 17 protects circuit L43,
and fuse 18 protects circuit L44.
When the operator selects high beam operation
with the turn signal stalk of the multi-function
switch, circuit L2 connects to the L3 Circuit L3 pow-
ers high beam operation.
HEADLAMP GROUND
Although circuit Z1 provides ground for the right
and left headlamps it has different termination
points for both. For the right headlamp the Z1 circuit
terminates at the right inner fender shield. For the
left headlamp the Z1 circuit terminates at the left
side of the radiator closure panel.
HELPFUL INFORMATION
²Check for a blown fuse in cavity 17 for L43 and
cavity 18 for L44.
²Check the 40 amp fuse located in the PDC.
²The headlamp switch has a 24 amp internal cir-
cuit breaker.
²For the left front parking lamp, turn signal, side
marker lamp and left headlamp, the Z1 circuit
grounding point is the left side of the radiator closure
panel.
²For the right front parking lamp, turn signal,
side marker lamp and right headlamp, the Z1 circuit
grounding point is in the right fender side shield.
HEADLAMP LEVELING MOTORS
The headlamp leveling system used in this vehicle
uses a variable position switch located in the instru-
ment panel along with headlamp leveling motors
located at the headlamps.
Power for the switch and the leveling motors is
supplied on circuit L43. This circuit is HOT when the
headlamp switch is in the ON position and the oper-
ator has selected LOW beam operation. In addition,circuit L43 is protected by a 10 amp fuse located in
the fuse block and is the feed for the left LOW beam
headlamp.
Ground for the switch is supplied on circuit Z1.
When the operator moves the switch, power is sup-
plied on circuit L13 from the switch to the headlamp
leveling motors. Ground for the leveling motors is
supplied on circuit Z1 and has the same termination
point as the respective headlamps.
The headlamp leveling switch also has a lamp
located in it for night illumination. Power for the
lamp is supplied on circuit E2. The E2 circuit is HOT
when the operator has turned the headlamp switch
to the PARK or ON position. The E2 circuit is pro-
tected by a 4 amp fuse located in the fuse block.
FOG LAMPS (FRONT)
The fog lamp system in this vehicle uses a switch
located in the instrument panel along with a relay
located in the Power Distribution Center (PDC).
Power for the switch is supplied on circuit L7. This
circuit is the feed for the front and rear parking
lamps and is HOT when the headlamp switch is in
the PARK position.
Power for the contact side of the relay is supplied
on circuit F61. This circuit is HOT at all times and
protected by a 20 amp fuse in the PDC. Ground for
the coil side of the relay is supplied in circuit Z1.
When the operator turns the lamps ON by closing
the switch, power flows on circuit L7 through the
switch to circuit L35. Circuit L35 connects from the
switch to the coil side of the fog lamp relay. With this
input the contacts in the fog lamp relay CLOSE con-
necting circuits F61 and L39.
Circuit L39 connects from the relay to the fog
lamps. Ground for the lamps is supplied on circuit
Z1.
HELPFUL INFORMATION
²Check the 20 amp fuse located in the PDC for
the fog lamps
²Check the lamp filament
²Check the grounding points for the lamps,
switch and relay
8W - 50 - 8 8W - 50 FRONT LIGHTINGPL
DESCRIPTION AND OPERATION (Continued)

Downloaded from www.Manualslib.com manuals search engine 8W-51 REAR LIGHTING
INDEX
page page
DESCRIPTION AND OPERATION
BACK-UP LAMPS....................... 10
FOG LAMPS (REAR)...................... 9STOP LAMPS.......................... 10
TAIL LAMPS AND LICENSE LAMPS.......... 9
DESCRIPTION AND OPERATION
TAIL LAMPS AND LICENSE LAMPS
Circuit A3 in the Power Distribution Center (PDC)
connects to a bus bar in the fuse block. One of the
four circuits powered by the bus bar is circuit F33. A
40 amp fuse in the PDC protects the A3 circuit. A 15
amp fuse, in cavity number 2 of the fuse block, pro-
tects the F33 circuit.
The headlamp switch has 3 positions, ON, PARK
(tail lamps) and OFF, plus a dimmer switch. When
the headlamp switch is in the PARK or ON position,
it connects circuit F33 to circuit L7. From the head-
lamp switch, circuit L7 branches to power the front
parking lamps, rear tail lamps, side marker lamps,
and rear license plate lamp.
GROUND CIRCUIT
Circuit Z1 provides ground for the tail lamps, park-
ing lamps, headlamps, side marker lamps, lamps and
rear license plate lamps although different grounding
points are used. Circuit Z1 also provides the ground
path for the headlamps, stop lamps and turn signals.
HELPFUL INFORMATION
²Check for a blown 40 amp fuse in the PDC.
²Check for a blown fuse in cavity 2 of the fuse
block
²For the left rear parking lamp, turn signal, side
marker lamp, and the rear license plate the Z1 cir-
cuit grounding point is in the left rear wheel well.
²For the right rear parking lamp, turn signal and
side marker lamp, the Z1 circuit grounding point is
in the right rear wheel well.
²Circuit L7 also feeds the radio, if equipped.
²When the headlamp switch is in the PARK or
ON position, the dimmer circuit, F33, connects to cir-
cuit E1. Circuit E1 powers the ash receiver lamp,
transmission range indicator lamp, instrument panel
cluster illumination lamps, HVAC control lamp,
heated rear window lamp, and radio lamp. A 4 amp
fuse, in cavity 12 of the fuse block, protects circuit
E1.
FOG LAMPS (REAR)
The rear fog lamps will operate only when the
headlamp switch is in the ON position.
Circuit A3 from the Power Distribution Center sup-
plies (PDC) voltage to a bus bar in the fuse block.
Circuit F61 is one of four circuits that the bus bar
feeds and is protected by a 20 amp fuse in cavity 4.
Circuit F61 connects to the rear fog lamp switch and
the front fog lamp relay.
The fog lamp switch contains a relay that supplies
voltage to the fog lamps. Circuit L2 from the multi-
function switch supplies voltage to the coil side of the
relay (only when the headlamps operate on LOW
beam). Circuit F61 supplies voltage to the contact
side of the relay. During LOW beam headlamp oper-
ation when the fog lamp switch contacts CLOSE, cir-
cuit F61 connects to circuit L38.
Circuit L38 feeds right and left fog lamp. Circuit
L38 also feeds the green L.E.D. in the switch that
illuminates during fog lamps operation.
When the headlamp switch is in the PARK or ON
position, circuit E1 from the headlamp switch sup-
plies voltage for circuit E2. Circuit E2 contains a 4
amp fuse in cavity 12 of the fuse block, and powers
the bulb in the fog lamp switch.
GROUND CIRCUIT
Although circuit Z1 provides the ground path for
the fog lamps, the circuit has different grounding
points for each lamp.
Circuit Z3 supplies the ground path for the fog
lamp switch. The grounding point for the headlamp
switch is the instrument panel left center support.
HELPFUL INFORMATION
²Circuit Z1 also supplies ground for side marker
lamps, turn signals, parking lamps and headlamps.
²Circuit A3 from the PDC supplies voltage to the
headlamp switch for circuit L2.
²Circuit F33 from the fuse block supplies voltage
to the headlamp switch for circuit E1. Circuit A3
from the PDC supplies voltage to a bus bar in the
fuse block that feeds the F33 circuit. Fuse 2, in the
fuse block, protects the F33 circuit.
PL8W - 51 REAR LIGHTING 8W - 51 - 9

Downloaded from www.Manualslib.com manuals search engine STOP LAMPS
Circuit F32 in the Power Distribution Center
(PDC) feeds the stop lamps. Circuit F32 connects to
the stop lamp switch. A 15 amp fuse in the PDC pro-
tects circuit F32.
When the operator presses the brake pedal, the
stop lamp switch CLOSES and connects circuit F32
to circuit L50. Circuit L50 connects to the stop
lamps. Circuit L50 also splices to power the CHMSL
lamp.
GROUND CIRCUIT
Circuit Z1 provides ground for the stop lamps,
CHMSL lamp, and the stop lamp switch. The Z1 cir-
cuit has more than one grounding point. It also sup-
plies ground path for the tail lamps, parking lamps,
headlamps, side marker lamps, rear license plate
lamp, back-up lamps and turn signals.
HELPFUL INFORMATION
²Check for blown fuses in circuit F32 (in PDC).
²Check for continuity across the stop lamp switch
when it is CLOSED.
²For rear lighting on the left side of the vehicle,
the Z1 circuit grounding point is in the left rear
wheel well.
²For rear lighting on the right side of the vehicle,
the Z1 circuit grounding point is in the right rear
wheel well.
²For the stop lamp switch, the Z1 circuit ground-
ing point is in the left front inner fender shield.
BACK-UP LAMPS
In the RUN position, the ignition switch connects
circuit A2 from the Power Distribution Center (PDC)to circuit A22. Circuit A22 feeds a bus bar in the fuse
block. A 40 amp fuse in the PDC protects the A2 and
A22 circuits.
Circuit F20 is one of four circuits that connects to
the fuse block bus bar fed by circuit A22. Circuit F20
supplies power to the back-up lamp switch. On 3±spd
automatic transaxle vehicles, the back-up lamp
switch is part of an assembly that includes the park/
neutral position switch.
When the operator puts the transmission in
REVERSE, the back-up lamp switch connects circuit
F20 to circuit L1. Circuit L1 feeds the back-up lamps.
A 10 amp fuse, in cavity 8 of the fuse block, protects
F20 and L1 circuits.
GROUND CIRCUIT
Circuit Z1 provides ground for the back-up lamps.
The Z1 circuit has more than one grounding point. It
also supplies ground path for the tail lamps, parking
lamps, headlamps, side marker lamps, rear license
plate lamp, stop lamps and turn signals.
HELPFUL INFORMATION
²Check for blown fuses in circuits A2 and F20.
²Check for continuity across the stop lamp switch
when it is CLOSED.
²For rear lighting on the left side of the vehicle,
the Z1 circuit grounding point is in the left rear
wheel well.
²For rear lighting on the right side of the vehicle,
the Z1 circuit grounding point is in the right rear
wheel well.
²Circuit F20 feeds the heated rear window switch
and A/C clutch cycling switch.
8W - 51 - 10 8W - 51 REAR LIGHTINGPL
DESCRIPTION AND OPERATION (Continued)