Toyota T100 1996 Service Manual page 415

2 Check voltage of mass air flow meter power source.
ON
BE6653
P24310
OK
3 Check voltage between terminals VG of ECM connector and body ground.
For M/T VG (+)
VG (+)
For A/T
P23805
P24311
NG
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
1 (+)
A00099
A00100
− ENGINE (5VZ−FE)
PREPARATION:
(a) Disconnect the mass air flow meter connector.
(b) Turn the ignition switch ON.
CHECK:
Measure voltage between terminal 1 of mass air flow meter con-
nector and body ground.
OK:
Voltage: 9 − 14 V
NG Check for open in harness and connector
between EFI main relay and mass air flow meter
(See page IN−26).
PREPARATION:
(a) Remove the right cowl side trim (See page SF−61).
(b) Start the engine.
CHECK:
Measure voltage between terminal VG of ECM connector and
body ground while engine is idling.
OK:
Voltage:
1.1 − 1.5 V (P or N position and A/C switch OFF)
OK Check and replace ECM (See page IN−26).
DI−151