Toyota ZZT230 series Repair Manual page 262

Check the output voltage of oxygen sensor during Idling.
2
PREPARATION:
Warm up the
CHECK:
Use the
080 II scan tool or TOYOTA hand-held tester read the output voltage of the oxygen sensor during
i d l i n g .
OXygen
Alternates repeatedly beiWee n
)
Check for o
sensor (ban 1 sensor 1 ) (See page IN-20).
4 Check air Induction system (See page SF-1 ).
)
oxy g en
sensor the engine at 2,500 rpm for approx. 90 sec.
o l
sensor output v t a g e:
-
v
1
----
.... .
----
.
o. • v
-
v
0
r
n and short In harness and connector between ECM and oxygen
DIAGNOSTICS
ENGINE
l a ssl h an and more
0.4 V
------ ---- ----------
AA
./\/'\.
----------
G
or rep l a ce h arness or con n ect o r .
R e pai r
G
Re p air or replace induction system.
55 Fo l l o wi n g
than 0 V (See the
N G
Dl-51
table)
Pl�9