BE6653
A01847
A02265
ON
HT1
HT2
(+)
(--)
DI--126
--
DIAGNOSTICS
ENGINE (2RZ--FE, 3RZ--FE)
1 Check voltage between terminals HT1, HT2 of engine ECU connector and body
ground.
PREPARATION:
(a) Remove the glove compartment
(b)
Turn ignition switch ON.
CHECK:
Measure voltage between terminals HT1, HT2 engine ECU
connector and body ground.
HINT:
S
Connect terminal HT1 to bank 1 sensor 1(Fr 02 sensor).
S
Connect terminal HT2 to bank 1 sensor 2(Rr 02 sensor).
OK:
Voltage: 9
∼
14 V
OK
Check and replace engine ECU
NG
2 Check resistance of heated oxygen sensor heater
NG
Replace heated oxygen sensor.
OK
Check and repair harness or connector between EFI main relay (Marking: EFI) and heated oxygen
sensor and engine ECU.
CLICK HERE TO VIEW CHAPTER INDEX
Pages From Supplement
3RZ-F,3RZ-FE