FI3605
ON
OFF
Flashing
0.13 Second
N09348
Interface Box
Vehicle Harness
ECU
Break--Out--Box
--
DIAGNOSTICS
ENGINE (2RZ--FE, 3RZ--FE)
DI--79
(6)
Switch the hand--held tester normal mode to check
(test) mode. (Check that the check engine warning
light (CHK ENG) flashes.)
(7)
Start the engine. (The check engine warning (CHK
ENG) light goes out after the engine start.)
(8)
Simulate the conditions of the malfunction de-
scribed by the customer.
NOTICE:
Leave the ignition switch ON until you have checked the
DTC, etc.
(9)
After simulating the malfunction conditions, use the
hand--held tester diagnosis selector to check the
DTCs and freezed frame data, etc.
HINT:
Take care not to turn the ignition switch OFF. Turning the ignition
switch OFF switches the diagnosis system from check (test)
mode to normal mode. so all DTCs, etc. are erased.
(10) After checking the DTCs, inspect the applicable cir-
cuit.
(b)
Clear the DTC.
The following actions will erase the DTCs and freezed
frame data.
S
Operating the hand--held tester to erase the
codes. (See the hand--held tester’s instruc-
tion book for operating in structions.)
S
Disconnecting the battery terminals or EFI
fuse.
NOTICE:
If the hand--held tester switches the ECU from normal
mode to check mode or vice--versa, or if the ignition switch
is turned from ON to ACC or OFF during check mode, the
DTCs and freezed frame data will be erased.
(c)
Using break--out--box and hand--held tester
(1)
Hook up the break--out--box and hand--held tester
to the vehicle.
(2)
Read the ECU input/output values following the
prompts on the tester screen.
HINT:
Hand--held tester has a ”Snapshot” function. This records the
measured values and is effective in the diagnosis of intermittent
problems.
Please refer to the hand--held tester/break--out--box operator,s
manual for further details.
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Pages From Supplement
3RZ-F,3RZ-FE