A02024
ON
#10
(+)
#30
#60
#50
#20
#40
FI6588 FI6538
A00064
10 V
/Division
10 V
/Division
GND
GND
100 msec./Division (Idling)
1 msec./Division (Idling)
Injection duration
(Magnification)
DI-60
-
DIAGNOSTICS
ENGINE
214
Author:
Date:
2001 SIENNA (RM787U)
3
Check voltage of ECM terminal for injector of failed cylinder.
PREPARATION:
(a)
Remove the glove compartment (See page
).
(b)
Turn the ignition switch ON.
CHECK:
Measure voltage between applicable terminal of the ECM con-
nector and body ground.
OK:
Voltage: 9 - 14 V
Reference INSPECTION USING OSCILLOSCOPE
INJECTOR SIGNAL WAVEFORM
With the engine idling, measure between terminals #10 - #60 and E01 of ECM.
HINT:
The correct waveform is as shown.
OK
NG
4
Check resistance of injector of misfiring cylinder (See page
).
NG
Replace injector.
OK