BE6653
A00347
A00348
Intake Air Temp.
Sensor
Engine ECU
ON
2
1
3
9
THA
E2
5V
E1
E5
E5
--
DIAGNOSTICS
ENGINE (2RZ--FE, 3RZ--FE)
DI--103
W hen using hand -- held tester
1 Co n n ect th e h an d -- h eld t ester, an d read valu e o f in take air t emp .
PREPARATION:
(a)
Connect the hand--held tester to DLC3.
(b)
Turn ignition switch ON and push the hand--held tester main switch ON.
CHE CK:
Read temp. value on the hand--held tester.
OK:
Same as actual intake air temp.
HINT:
S
If there is open circuit,hand--held tester indicates -- 40
˚
C (-- 40
˚F).
S
If there is short circuit, hand---held tester indicates 140˚
C (284
˚F) or more.
NG -- 4 0
˚
C (--40
˚
F) Go to step 2.
OK
Check for intermittent problem
2 Check for open in harness or engine ECU
PREPARATION:
(a)
Disconnect the air flow meter connector.
(b)
Connect sensor wire harness terminals together.
(c)
Turn ignition switch ON.
CHE CK:
Read temp. value on the hand--held tester.
OK:
Temp. value: 140
˚
C (284
˚
F) or more
OK
Confirm good connection at sensor. If OK,
replace air flow meter.
OK
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Pages From Supplement
3RZ-F,3RZ-FE