Toyota T100 1996 Service Manual page 370

DI−106
5 Check voltage between terminals IGT of ECM connector and body ground.
START
For M/T
IGT (+)
For A/T IGT (+)
BE6653
P24212
P24213
IGT signal waveform
IGT
0 V
IGF
0 V
10 msec./Division (Iding)
OK
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS −
PREPARATION:
Remove the right cowl side trim (See page MF−50).
CHECK:
Measure voltage between terminals IGT of ECM connector and
body ground when engine is cranked.
OK:
Voltage: More than 0.1 V and less than 4.5 V
A00088
Reference: INSPECTION USING OSCILLOSCOPE
During cranking or idling, check waveform between terminals
2 V/
IGT and E1 of ECM.
Division
HINT:
The correct waveforms are as shown.
FI6680
NG
ENGINE (3RZ−FE)
Check and replace ECM (See page IN−26).