A01849
VG
(+)
(--)
A00401
3 (+)
ON
--
DIAGNOSTICS
ENGINE (2RZ--FE, 3RZ--FE)
DI--99
When not using hand--held tester
1 Check voltage between terminal VG of engine ECU and ground.
PREPARATION:
CHECK:
Measure voltage between terminal VG of engine ECU 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 engine ECU
OK
2 Check voltage of air flow meter power source
PREPARATION:
Disconnect the air flow meter connecter
Turn the ignition switch ON.
CHECK:
Measure voltage between terminal 3 of air flow meter connector
and body ground.
OK:
Voltage: 9 -- 14 V
NG
Check for open in harness and connecter
between EFI main relay (Marking: EFI) and
OK
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Pages From Supplement
3RZ-F,3RZ-FE