Toyota ZZT230 series, Repair Manual

Page: 407 / 821

Dl-196
INSPECTION PROCEDURE
1
Check resistance between terminals NT+ and NT-of ECM.
PREPARATION:
Disconnect the connector from ECM.
CHECK:
Check resistance between terminals NT+ and NT- of ECM.
OK: Resistance: 620
±
60
n
B
Check and replace the ECM
(Sea
page IN-30).
2
Check
NT revolution speed sensor.
'"""'
PREPARATION:
Remove the NT revolution speed sensor from transaxle.
CHECK:
(a) Measure resistance between terminals
1 and
2
of speed
sensor.
{b) Check voltage between terminals
1
and 2 of the speed
sensor when a magnet is put close to the front end of the
speed sensor then taken away quickly.
OK:
HINT:
(a) Resistance: 620
± 60 n
at20
·c (66 "F)
(b)
Voltage Is generated Intermittently.
The voltage generated is extremely low.
Replace the
NT
r
e
vo
l
u
t
i
o
n
speed sensor.
Check and the harness and connector
between and
NT
revolution speed sen­
sor
(Sea
page IN-30).