Mazda 121 - Page 227

SELF-DIAGNOSIS
FUNCTION
F
CODE
t{o.
08
(ATRFLOW
SE SOR)
STEP IISPECTTON acTtot{
ls ihere
poof
connection
in
airilow sensor circuiP Repair or teplace wi
ng
2 ls ECU lerminal 20 vollage OK?
e
page
F-118
lgnition
swilch ON
ldle
ls same Code
presenl
atter
performing
alter'repalf
procedure?
+
lf YES, replace ECU
+
lf NO, r€check airliow sensor and
ECU ior
poor
conneclion
e
p.g€
F-79
No Go to next step
3
ls lhere
battery
vollage
at airtlow sensor connec'
tor teminal C with airilow s€nsor connector dis.
Check
tor short or open circuil
in wir-
ng trom aiflow sensor conneclor ter-
mnal C lo
main relay.
+
lJ OK, check main
realy
+
ll not OK, repair or rcplace
ls lhe.e conlinuiiy belween airilow
sensor lerrni-
na B and
sround?
R€pan or rcplace
wiing
5 ls resislance
between arrflow sensor teminals A
and B
OK?
E7
page
F-121
Resistance: 4
+
1 m
eo"C t68.Fl)
ls there conllnuty between
ECU terminal 20 and aidlow
+
lf OK, replac€ aidlow sensor
+
lf not OK, repair or replace
No Aeplace airllow sensor
Circult Diagram
FFOM IGNITION
swtTcH
trrl
rll
rl rl
1l
G/w
ll
clv
,i
AIFFLOW SENSOR
F-71