Toyota ZZT230 series Repair Manual page 286

INSPECTION PROCEDURE
•
:
I
H N T
Per f o r m t r oubl e shoot i n g of
•
system.
Read f r eeze f r a me dat a
r e cor d s
det e rmi n i n g whet h er t h e vehi c l e
r a t i o l e an or
Check resistance of crankshaft position sensor (See page IG-1).
1
and
G
NE
G2
)
2
Check for open and short In harness and connector between ECM
crankshaft position sensor (See page IN-30).
3
Inspect sensor Installation and teeth of crankshaft timing pulley
(See page IG-11, EM-1 5).
Check and repl a ce ECM
)
DTC
g
usi n TOYOTA hand-held tester or OBD
e g e
conditions when the malfunction is detected, when troubleshooting
the n in
et c . at the
rich, time
Signal Waveforms
5 V
page
(See
DIAGNOSTICS ENGINE
335
1st. If notrouble is found, troubleshoot the following mechanical
was running or stopped, the engine warmed up or not, the air-fuel
of the
malfunction.
Reference: I N SPEC TI ON USI N G OSCI L LOSCOPE
or
During cranking
NE-. NE and NE-
HINT:
The cor r e ct wavef o r m s
G
Repl a ce crankshaft posi t i o n sensor .
Repai r or repl a ce harness or connect o r.
Repl a ce crankshaft ti m i n g pul l e y.
JN--3 0 ).
scan tool. Because freeze frame
II
idling, check between terminals G2 and
of
the ECM
are as shown.
Dl-75
i t
is useful for
and