mazda3 electrical wiring diagram

BODY ELECTRICAL

MAZDAMAZDAELECTRICALELECTRICAL

WIRING DIAGRAMWIRING DIAGRAMWORKBOOKWORKBOOK http://www.autoshop101.com

Developed by Kevin R. SullivanDeveloped by Kevin R. SullivanAll rights reserved.All rights reserved.

ASSIGNMENT WORKSHEETSVersion 1.3

http://www.autoshop101.com

MAZDATable of Contents

Wiring Diagrams1. Understanding Diagrams Page U-1

Lighting Systems1. Headlights Page L-12. Turnsignals & Hazard Page L-23. Stop Lights Page L-34. Backup / Horn Page L-4

Accessories Systems1. Power Windows Page A-12. Power Mirrors Page A-23. Door Locks Page A-3 4. Clock & Cig Lighter Page A-4 5. Front Wiper & Washer Page A-5 6. Blower Page A-6

MAZDAUnderstanding

Wiring Diagrams

Worksheets

U-1 Page 1

MAZDA WIRING DIAGRAMS REFERENCE

U-1 Page 2


U-1 Page 3


U-1 Page 4


U-1 Page 5


U-1 Page 6


U-1 Page 7


U-1 Page 8


U-1 Page 9


U-1 Page 10


U-1 Page 11

MAZDA WIRING DIAGRAMS WORKSHEET #1

1. Describe the meaning of the dotted line in the diagram component P.2. Describe and identify the diagram component Q.3. Describe and identify the "R/B" in diagram component R.4. Describe and identify the "F" in diagram component S.5. Describe and identify the diagram component T.6. Describe and identify the diagram component U.7. Describe and identify the diagram component V.8. Describe and identify the diagram component W.9. Indicate if the connector attached to the wire is male or female in diagram component X.10. Describe and identify the diagram component Y.11. Describe and identify the "F" in diagram component Z..

X

Y

Z

WV

U

T

SR

Q

P

U-1 Page 12

MAZDAHeadlamp

Worksheets

L-1 Page 1

MAZDA HEAD LAMPS PRACTICE WORKSHEET

L-1 Page 2

MAZDA HEAD LAMPS WORKSHEET #1

1. Draw in GREEN the HEAD LAMP CONTROL circuit from the battery to ground.2. Draw in RED the LOW BEAM circuit from the battery to ground.3. Draw in BLUE the HIGH BEAM circuit from the battery to ground.

L-1 Page 3

MAZDA HEAD LAMPS WORKSHEET#2

1. Draw in GREEN the HEAD LAMP CONTROL circuit from the battery to ground.2. Draw in RED the LOW BEAM circuit from the battery to ground.3. Draw in BLUE the HIGH BEAM circuit from the battery to ground.

L-1 Page 4

V

XY

W

Z


1. With the Headlamp Switch in the OFF position, what voltage would you expect to find at point V, W, X, Y, & Z.2. With the Headlamp Switch in the ON position, LOW BEAM position, what voltage would you expect to find at point V, W, X, Y, & Z.3. With the Headlamp Switch in the ON position, HIGH BEAM position, what voltage would you expect to find at point V, W, X, Y, & Z.4. How will the circuit be affected if there is an open at point V.5. How will the circuit be affected if there is an open at point W.6. How will the circuit be affected if there is an open at point X.7. How will the circuit be affected if there is an open at point Y.8. How will the circuit be affected if there is an open at point Z.

L-1 Page 5


1. Trace in GREEN the portion of the circuit below that you suspect could be at fault. Both LOW BEAM HEADLAMPS do not work. The lamps work correctly on the High Beam and Flash (passing) positions. The tail lamps function correctly.2. Trace in RED the portion of the circuit below that you suspect could be at fault. The LEFT HIGH BEAM HEADLAMP does not work in the High Beam Position. Both lamps function normally in the low beam position. The tail lamps function correctly.3. Trace in BLUE the portion of the circuit below that you suspect could be at fault. The LEFT HEADLAMP is DIM in both Low or High Beam Positions. The right lamp functions normally. The tail lamps function correctly.4. Trace in ORANGE the portion of the circuit below that you suspect could be at fault. The HEADLAMPS do not work in any position. The tail lamps function correctly.

L-1 Page 6

MAZDATurn/Hazard Lamps

Worksheets

L-2 Page 1

MAZDA TURN / HAZARD LAMPS REFERENCE

L-2 Page 2

MAZDA TURN / HAZARD LAMPS PRACTICE WORKSHEET #1

L-2 Page 3

MAZDA TURN / HAZARD LAMPS PRACTICE WORKSHEET #2

L-2 Page 4

MAZDA TURN / HAZARD LAMPS WORKSHEET #1

1. Draw in GREEN the RIGHT TURN LAMP INPUT CONTROL circuit from the battery to the flasher.2. Draw in RED the RIGHT TURN LAMP circuit from the battery to ground.3. Draw in BLUE the HAZARD INPUT CONTROL circuit from the ground to the flasher.

L-2 Page 5


Y

V

U Z

W

X

Explain how each of the following conditions will affect the circuit1 How will the circuit be affected if there is an open at point U.2 How will the circuit be affected if there is an open at point V.3. How will the circuit be affected if there is an open at point W.4. How will the circuit be affected if there is an open at point X.5. How will the circuit be affected if there is an open at point Y.6. How will the circuit be affected if there is an open at point Z.

L-2 Page 6

1. Trace in GREEN the portion of the circuit below that you suspect could be at fault. Both TURN SIGNAL do not work, but the Hazard lamps do work correctly.2. Trace in RED the portion of the circuit below that you suspect could be at fault. The LEFT TURN SIGNAL does not work. The Hazard Lamps function normally.3. Trace in BLUE the portion of the circuit below that you suspect could be at fault. The HAZARD LAMPS do not work. The Turn Signal Lamps function normally.4. Trace in ORANGE the portion of the circuit below that you suspect could be at fault. Both the HAZARD LAMPS and the TURN SIGNAL LIGHTS do not work in any Position.


L-2 Page 7


L-2 Page 8


L-2 Page 9


L-2 Page 10

MAZDAStoplamps

Worksheets

L-3 Page 1

MAZDA STOP LIGHTS PRACTICE WORKSHEET

L-3 Page 2

MAZDA STOP LIGHTS WORKSHEET #1

L-3 Page 3

1. T

HE

ST

OP

LIG

HT

SW

ITC

H IS

PLA

CE

D IN

TH

E C

LOS

ED

PO

SIT

ION

. D

raw

the

BLU

E th

e P

OS

ITIV

E B

+ S

IDE

of t

he

c

ircui

t. E

very

thin

g th

at is

Pos

itive

(B

+)

with

the

Ign

Key

OF

F.

2. T

HE

ST

OP

LIG

HT

SW

ITC

H IS

PLA

CE

D IN

TH

E O

PE

N P

OS

ITIO

N.

Dra

w th

e G

RE

EN

the

GR

OU

ND

SID

E o

f the

circ

uit.

Eve

ryth

ing

that

is g

roun

d (N

egat

ive)

with

the

Ign

Key

OF

F..

1. W

ith th

e S

TO

P L

IGH

T S

witc

h in

the

OF

F p

ositi

on, w

hat v

olta

ge w

ould

you

exp

ect t

o fin

d at

poi

nt V

, W, X

, Y, &

Z?

(

Not

e: Ig

nitio

n K

ey is

in th

e O

N p

ositi

on)

2. W

ith th

e S

TO

P L

IGH

T S

witc

h in

the

ON

pos

ition

, wha

t vol

tage

wou

ld y

ou e

xpec

t to

find

at p

oint

V, W

, X, Y

, & Z

?

(

Not

e: Ig

nitio

n K

ey is

in th

e O

FF

pos

ition

)3.

With

a S

TO

P L

IGH

T b

ulb

burn

ed o

ut, w

hat v

olta

ge w

ould

you

exp

ect t

o fin

d at

poi

nt Y

?

B+

or

Gro

und.

ZV

W

X

Y

ZV

W

X

Y

1. H

ow w

ill th

e ci

rcui

t be

affe

cted

if th

ere

is a

n op

en a

t poi

nt V

?2.

How

will

the

circ

uit b

e af

fect

ed if

ther

e is

an

open

at p

oint

W?

3. H

ow w

ill th

e ci

rcui

t be

affe

cted

if th

ere

is a

n op

en a

t poi

nt X

?4.

How

will

the

circ

uit b

e af

fect

ed if

ther

e is

an

open

at p

oint

Y?

5. H

ow w

ill th

e ci

rcui

t be

affe

cted

if th

ere

is a

n op

en a

t poi

nt Z

?

1. O

n a

vehi

cle

wit

h a

rear

sp

oiler.

The

Sto

p Li

ghts

do n

ot w

ork

, but

the

Hig

h-M

ount

Sto

p Li

ght w

orks

fine

. T

race

in G

RE

EN

the

port

ion

of th

e ci

rcui

t bel

ow th

at c

ould

be

at fa

ult.

2. O

n a

vehi

cle

wit

h a

rear

sp

oiler.

The

Hig

h-M

ount

Sto

p Li

ght d

oes

not w

ork

, but

the

Sto

p lig

hts

wor

k. T

race

in B

LUE

the

p

ortio

n of

the

circ

uit b

elow

that

cou

ld b

e at

faul

t.3.

On

a ve

hicl

e w

ith

a r

ear

sp

oiler.

A s

ingl

e S

top

Ligh

t in

burn

ed o

ut, b

ut th

e R

ear

War

ning

Lam

p in

dica

tor

does

n't l

ight

.

Tra

ce in

RE

D th

e po

rtio

n of

the

circ

uit t

hat c

ould

be

at fa

ult.

4. O

n a

vehi

cle

wit

ho

ut

a r

ear

sp

oiler.

Non

e of

the

Sto

p Li

ghts

wor

k. T

race

in O

RA

NG

E th

e po

rtio

n of

the

circ

uit

b

elow

that

cou

ld b

e at

faul

t. T

he h

orn

wor

ks c

orre

cly.

MAZDAHorn /

Backup Lamps

Worksheets

L-4 Page 1

MAZDA HORN/BACKUP LAMPS WORKSHEET #1

1. Draw in GREEN the HORN CONTROL circuit from the battery to ground.2. Draw in RED the HORN circuit from the battery to ground.3. Draw in BLUE the BACKUP LAMP circuit from the battery to ground.

L-4 Page 2

MAZDA HORN/BACKUP LAMPS WORKSHEET #2

1. If the Horn Switch is OPEN, what voltage would you expect to find at point W, X, Y, & Z.2. If the Horn Switch is CLOSED, what voltage would you expect to find at point W, X, Y, & Z.3. How will the circuit be affected if there were an open at point W.4. How will the circuit be affected if there were an open at point X.5. How will the circuit be affected if there were an open at point Y.6. How will the circuit be affected if there were an open at point Z.

X

Z

Y

W

L-4 Page 3

MAZDAPower Windows

Worksheets

A-1 Page 1

A-1

Pag

e 2

Wh

ile m

ovi

ng

th

e L

EF

T R

EA

R w

ind

ow

in t

he

OP

EN

po

siti

on

fro

m t

he

PA

SS

EN

GE

R S

UB

SW

ITC

H.

1. T

race

in R

ED

the

PO

SIT

IVE

pow

er fl

ow fr

om th

e fu

se to

the

mot

or.

2. T

race

in B

LUE

the

NE

GA

TIV

E p

ower

flow

from

the

mot

or to

gro

und.

Wh

ile m

ovi

ng

th

e R

IGH

T F

RO

NT

win

do

w in

th

e O

PE

N p

osi

tio

n f

rom

th

e M

AS

TE

R S

WIT

CH

.

1. T

race

in G

RE

EN

the

PO

SIT

IVE

pow

er fl

ow fr

om th

e fu

se to

the

mot

or.

2. T

race

in O

RA

NG

E th

e N

EG

AT

IVE

pow

er fl

ow fr

om th

e m

otor

to g

roun

d.

A-1

Pag

e 3

Wh

ile m

ovi

ng

th

e L

EF

T R

EA

R w

ind

ow

in t

he

CL

OS

ED

po

siti

on

fro

m t

he

PA

SS

EN

GE

R S

UB

SW

ITC

H.

1. T

race

in R

ED

the

PO

SIT

IVE

pow

er fl

ow fr

om th

e fu

se to

the

mot

or.

2. T

race

in B

LUE

the

NE

GA

TIV

E p

ower

flow

from

the

mot

or to

gro

und.

Wh

ile m

ovi

ng

th

e R

IGH

T R

EA

R w

ind

ow

in t

he

CL

OS

ED

po

siti

on

fro

m t

he

MA

ST

ER

SW

ITC

H.

1. T

race

in G

RE

EN

the

PO

SIT

IVE

pow

er fl

ow fr

om th

e fu

se to

the

mot

or.

2. T

race

in O

RA

NG

E th

e N

EG

AT

IVE

pow

er fl

ow fr

om th

e m

otor

to g

roun

d.

A-1

Pag

e 4

Wh

ile m

ovi

ng

th

e R

IGH

T R

EA

R w

ind

ow

in t

he

CL

OS

ED

po

siti

on

fro

m t

he

PA

SS

EN

GE

R S

UB

SW

ITC

H.

1. T

race

in R

ED

the

PO

SIT

IVE

pow

er fl

ow fr

om th

e fu

se to

the

mot

or.

2. T

race

in B

LUE

the

NE

GA

TIV

E p

ower

flow

from

the

mot

or to

gro

und.

Wh

ile m

ovi

ng

th

e L

EF

T R

EA

R w

ind

ow

in t

he

CL

OS

ED

po

siti

on

fro

m t

he

MA

ST

ER

SW

ITC

H.

1. T

race

in G

RE

EN

the

PO

SIT

IVE

pow

er fl

ow fr

om th

e fu

se to

the

mot

or.

2. T

race

in O

RA

NG

E th

e N

EG

AT

IVE

pow

er fl

ow fr

om th

e m

otor

to g

roun

d.

A-1

Pag

e 5

1. H

ow w

ill th

e ci

rcui

t be

affe

cted

if th

ere

is a

n op

en a

t poi

nt T

.2.

How

will

the

circ

uit b

e af

fect

ed if

ther

e is

an

open

at p

oint

U.

3. H

ow w

ill th

e ci

rcui

t be

affe

cted

if th

ere

is a

n op

en a

t poi

nt V

.4.

How

will

the

circ

uit b

e af

fect

ed if

ther

e is

an

open

at p

oint

W.

5. H

ow w

ill th

e ci

rcui

t be

affe

cted

if th

ere

is a

n op

en a

t poi

nt X

.6.

How

will

the

circ

uit b

e af

fect

ed if

ther

e is

an

open

at p

oint

Y.

7. H

ow w

ill th

e ci

rcui

t be

affe

cted

if th

ere

is a

n op

en a

t poi

nt Z

.

U

YX

V

T

A-1

Pag

e 6

W

Z

1. T

he R

IGH

T F

RO

NT

Pas

seng

er W

indo

w w

ill n

ot O

PE

N o

r C

LOS

E fr

om th

e M

aste

r W

indo

w S

witc

h.

W

hen

the

Sub

Sw

itch

is u

sed,

the

win

dow

will

onl

y C

LOS

E a

nd n

ot O

PE

N.

T

race

in B

LUE

the

area

s w

here

you

sus

pect

the

prob

lem

cou

ld b

e.

2. T

he R

IGH

T R

EA

R W

indo

w w

ill O

NLY

OP

EN

, and

NO

T C

LOS

E fr

om th

e M

aste

r W

indo

w S

witc

h. W

hen

t

he S

ub S

witc

h is

use

d, th

e w

indo

w w

ill m

ove

OP

EN

and

CLO

SE

.

Tra

ce in

RE

D th

e ar

eas

whe

re y

ou s

uspe

ct th

e pr

oble

m c

ould

be.

3. T

he L

EF

T R

EA

R w

indo

w w

ill n

ot O

PE

N o

r C

LOS

E fr

om e

ither

the

SU

B o

r M

AS

TE

R s

witc

hes.

T

race

in R

ED

the

area

s w

here

you

sus

pect

the

prob

lem

cou

ld b

e.

A-1

Pag

e 7

1. T

he L

EF

T R

EA

R W

indo

w w

ill n

ot O

PE

N o

r C

LOS

E fr

om th

e S

UB

Win

dow

Sw

itch.

How

ever

, the

win

dow

will

OP

EN

and

CLO

SE

from

the

mas

ter

switc

h.

Tra

ce in

GR

EE

N th

e ar

eas

whe

re y

ou s

uspe

ct th

e pr

oble

m c

ould

be.

2. T

he R

IGH

T F

RO

NT

Win

dow

will

OP

EN

but

NO

T C

LOS

E fr

om th

e M

aste

r W

indo

w S

witc

h. H

owev

er, w

hen

the

Sub

S

witc

h is

use

d, th

e w

indo

w w

ill O

PE

N a

nd C

LOS

E.

T

race

in O

RA

NG

E th

e ar

eas

whe

re y

ou s

uspe

ct th

e pr

oble

m c

ould

be.

3. O

nly

the

LEF

T F

RO

NT

WiIN

DO

W (

DR

IVE

R S

IDE

) w

ill O

PE

N o

r C

LOS

E fr

om th

e M

AS

TE

R W

indo

w S

witc

h.

T

he o

ther

win

dow

s w

ill O

PE

N a

nd C

LOS

E o

nly

from

the

SU

B s

witc

hes.

T

race

in B

LUE

the

area

s w

here

you

sus

pect

the

prob

lem

cou

ld b

e.

A-1

Pag

e 8

MAZDAPower Mirrors

Worksheets

A-2 Page 1

MAZDA POWER MIRRORS PRACTICE WORKSHEET

A-2 Page 2

MAZDA POWER MIRRORS WORKSHEET #1

While moving the LEFT SIDE MIRROR in the UP position.

1. Trace in RED the POSITIVE power flow from the battery to the motor.

2. Trace in BLUE the NEGATIVE power flow from the motor to ground.

A-2 Page 3


While moving the RIGHT SIDE MIRROR to the RIGHT.

1. Trace in RED the POSITIVE power flow from the battery to the motor.

2. Trace in BLUE the NEGATIVE powerflow from the motor to ground.

A-2 Page 4


1. While moving the LEFT SIDE MIRROR to the LEFT. Trace in RED the current flow from the battery to ground.

2. While moving the LEFT SIDE MIRROR to the DOWN. Trace in Blue the current flow from the battery to ground.

A-2 Page 5


1. While moving the RIGHT SIDE MIRROR to the LEFT. Trace in RED the current flow from the battery to ground.

2. While moving the RIGHT SIDE MIRROR to the UP. Trace in Blue the current flow from the battery to ground.

A-2 Page 6


Determine what the affect will be on the following circuit.

1. How will the circuit be affected if there is an open at point V.2. How will the circuit be affected if there is an open at point W.3. How will the circuit be affected if there is an open at point X.4. How will the circuit be affected if there is an open at point Y.5. How will the circuit be affected if there is an open at point Z.

V

W

X

Y

Z

A-2 Page 7


PROBLEM #1The LEFT MIRROR will NOT adjust UP or DOWN. However, the LEFT MIRROR will adjust LEFT and RIGHT. The RIGHT MIRROR functions correctly.Trace in BLUE the areas where the problem could be.

PROBLEM #2The RIGHT MIRROR will NOT adjust UP,DOWN, LEFT,or RIGHT. The LEFT MIRROR functions correctly.Trace in RED the areas where the problem could be.

A-2 Page 8


PROBLEM #3The RIGHT MIRROR will NOT adjust LEFT,or RIGHT. However, the RIGHT MIRROR will adjust UP and DOWN. The LEFT MIRROR functions correctly.Trace in GREEN the areas where the problem could be.

PROBLEM #3Both the LEFT AND RIGHT MIRRORS will NOT adjust UP or DOWN. However, both mirrors will adjust LEFT and RIGHT. Trace in BLUE the areas where the problem could be.

A-2 Page 9

MAZDADoor Lock

Worksheets

A-3 Page 1

MAZDA POWER DOOR LOCKS REFERENCE

A-3 Page 2

MAZDA POWER DOOR LOCKS PRACTICE WORKSHEET

A-3 Page 3

MAZDA POWER DOOR LOCKS WORKSHEET #1

A-3 Page 4


A-3 Page 5


A-3 Page 6


A-3 Page 7

MAZDACig Lighter/Clock/

and Defogger

Worksheets

A-4 Page 1

MAZDA CLOCK/CIG/DEFROSTER PRACTICE WORKSHEET

A-4 Page 2

MAZDA CLOCK/CIG/DEFROSTER WORKSHEET #1

1. Trace in RED the part of the clock's circuit that allows the clock's display to light.

2. Trace in BLUE the part of the clock's circuit that allows the Clock to keep the correct time when the engine is not running (Memory).

3. Trace in GREEN the part of the clock's circuit that allows the Clock's display to dim when the headlights are on.

A-4 Page 3


1. Draw in RED the DEFOGGER circuit from the battery to ground.

2. Draw in BLUE the DEFOGGER LAMP circuit from the battery to ground.

A-4 Page 4


W

X

Z

Y

V

Note Ignition switch is in the run position

1. With the Defogger Switch in the OFF position, what voltage would you expect to find at point U,V, W, & Z ?

2. With the Defogger Switch in the ON position, what voltage would you expect to find at at point U,V, W, & Z ?

3. With the Headlight Switch in the ON position, what voltage would you expect to find at point W, X, Y, & Z ?

U

A-4 Page 5


W

X

Z

Y

V


1. How will the circuit be affected if there is an open at point V.2. How will the circuit be affected if there is an open at point W.3. How will the circuit be affected if there is an open at point X.4. How will the circuit be affected if there is an open at point Y.5. How will the circuit be affected if there is an open at point Z.

A-4 Page 6


1. The clock display will not dim when the headlamps are turned on.Trace in RED the area(s) that could be at fault.

2. The clock loses its time (memory) each time the ignition switch is turned off and has to be reset with the correct time.Trace in BLUE the area(s) that could be at fault.

3. The clock display never light up. The cigarette lighter works.Trace in GREEN the area(s) that could be at fault.

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1. The rear window defroster switch lights up, but the rear window defroster does not work. Trace in BLUE the area(s) that could be at fault.

2. The rear window defroster does not work. The defroster switch light does not light.Trace in GREEN the area(s) that could be at fault.

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MAZDAWiper/Washer

Worksheets

A-5 Page 1

MAZDA FRONT WIPERS PRACTICE WORKSHEET

A-5 Page 2

MAZDA FRONT WIPERS WORKSHEET #1

The WIPER SWITCH is in the LOW SPEED position.

1. Trace in RED the POSITIVE power flow from the battery to the wiper motor.

2. Trace in BLUE the NEGATIVE power flow from the wiper motor to ground.

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With the WIPER SWITCH is in the HIGH SPEED position.



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After the WIPER SWITCH has been turned off with the wipers in the up position. The wipers return to the park position. Identify and draw this circuit .



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After the WIPER SWITCH has been turned to the INTERMITTENT position. The wipers work intermittently using a timer. Identify and draw this circuit .

1. Trace in RED the POSITIVE INPUT power flow from the battery to the timer.2. Trace in BLUE the NEGATIVE power flow from the timer to ground.3. Trace in ORANGE the TIMER OUTPUT Ground Wire from the timer to the COIL.4. Trace in GREEN the INTERMITTENT WIPER CIRCUIT from the batter to the motor.

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Z

W

X

Y

1. How will the circuit be affected if there is an open at point V?2. How will the circuit be affected if there is an open at point W?3. How will the circuit be affected if there is an open at point X?4. How will the circuit be affected if there is an open at point Y?5. How will the circuit be affected if there is an open at point Z?

V

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1. The wipers will not work in the HIGH SPEED position. All other positions function correctly. Trace in RED the area(s) that could be at fault.

2. The wipers stay up on the windshield when the wiper switch is turned off. All otherwiper functions work correctly (high, low, mist, etc.). Trace in BLUE the area(s) that could be at fault.

3. The wipers will not operate (pulse) when the windshield washer switch is pushed. The washer works. The wipers will work when put in HI or LOW speed positions. Trace in GREEN the area(s) that could be at fault.


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4. The Wipers will not work in the low speed position. All other positions functioncorrectly (high speed, intermittent, mist, etc.).Trace in RED the area(s) that could be at fault.

5. The Wipers will not work in any position, however the washer motor works. Trace in BLUE the area(s) that could be at fault.

MAZDABlower Circuits

Worksheets

A-6 Page 1

COOLING FANS / BLOWER PRACTICE WORKSHEET

A-6 Page 2

COOLING FANS / BLOWER WORKSHEET #1

1. Draw in BLUE the BLOWER CIRCUIT with the BLOWER in the LOW SPEED position.

2. Draw in GREEN the BLOWER CIRCUIT with the BLOWER in M1 SPEED position.

3. Draw in ORANGE the BLOWER CIRCUIT with the BLOWER in HIGH SPEED position.

4. Explain the difference between the HI SPEED circuit and ALL OTHER SPEEDS.

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1. How will the circuit be affected if there is an open at point W.

2. How will the circuit be affected if there is an open at point X.

3. How will the circuit be affected if there is an open at point Y.

4. How will the circuit be affected if there is an open at point Z.

Y

XW

Z


1. The HIGH SPEED blower works but none of the other speeds work.Trace in RED the area(s) that could be at fault.

2. The LOW SPEED blower does not work. All other speeds work correctly.Trace in BLUE the area(s) that could be at fault.

3. None of the blower speeds work. The A/C switch does light up when pushed.Trace in GREEN the area(s) that could be at fault.

4. The ML (medium Low) speed does not work. All other speeds function correctly..Trace in ORANGE the area(s) that could be at fault.

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mazda3 electrical wiring diagram

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