Mazda 121 - Page 273

CONTBOL SYSTEM F
.
Open circuit in wiing lrom AJC switch to ECu terminal 10
Always baltery vollage
.
A/C sulch maliunclion
(Reler
to Section lJ)
(elect
c cool ns tan OK)
Open or shorl circuit ln wirng
trom
lan
retay
lo
ECU
teffnina
1B
ECU
mallunction
Alwals
below 1.0V
(blower
lan OK) Shon
circut n wiring
from
blower conlrol swilch
to ECLJ terminal 15
Poor
conneclion at ECU conneclor
ECU
maltunclion
Always batlery
voltage (blower
fan OK)
.
Open c rcuit in wirins ircm blower control swilch lo ECU lerminal lS
t.0v
llluminalion lamp
ON Op€n or shorl cncuir in wirlng trom rear window dstrosl€r swtch ro ECU
lenninal 1T
never ON
Open
circuit
in
wir
ng lrom ignition
switch to
rear window delroster swilch
Fear wndow
defroster
switch
malfunction
(Beler
to Section T)
Always below
1.0V
(Headlighls
OK)
.
Open
or shon circuit
in
wiring trom headlighl
relay lo ECIJ terminal 1
U
Neulfal swilch malluncton
(Refer
to
page
F-125)
Clutch
switch
maliunction
{Beler
ro
page
F-124)
Shon circuit ln wnino lrom ECU terminal lV to neukal or ciltch switch
Neutrai
swilch mallunclion
(Feler
to
page
F-125)
Clulch
swlch malfunction
(Rerer
to
page
F-124)
Open
crcut
n
widng
from ECU tenninal 1V lo neutral or clurch switch
Poor
conneclion at ECU connector
Inh
bilor swltch mallunction {Reler to Section K)
Short circuit wiring lrom lnhibitor switch lo ECU lerminal
1V
nhibitor swilch mallunclion
(Refer
lo Sectlon K)
Open orcult in wiring frorn inhibitor swrtch to ECU rerminal 1V
Poor contacl
al
ground
terminal
Open
circuit
in
wir
ng lrom ECU to
ground
Always
approx 0V or approx. 2V
.
Refer to Troubleshooting,
Code No.02
(Reler
to
page
F-70)
A ways battery vollage
.
Open circuil wiring from lo
ground
Shon circult n wiring from ECU tenninal 2K lo thrctlle sensor
EC
AT convol
unil
(ATX),
or ln
aidow
sensor
Poor connection
at
ECU
conneclor
ECU
mallunclion
Beow 4.5V of above 5.5V
.
ECU mailuncton
F-117