Test Mode - Toyota 7M-GE Repair Manual

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EFI SYSTEM;
Diagnosis
System
S)
------)
-.
I
Fl281
Test mode
i
To obtain
an output
of diagnostic
codes, proceed
as follows:
1.
Initial conditions
(a)
Battery voltage
about
1 1 volts
(b)
Throttle
valve fully closed
(throttle
position
sensor
IDL points closed)
(c)
Transmission
in neutral position
(d)
Accessory
switches
OFF
2.
Using a service wire, short terminals
TE2 and El of the
j
check connector.
\
-----.-q
*-heengine
and run the vehicle at a speed of IO km/h
I
(6 mph) or higher.
__--
_
___ _.--.--.
4.
Simulate
the conditions
of the malfunction
described
by
the user.
5.
Using a service wire, short terminals
TEl and .El of the
check connector.
NOTE:
l
The test mode will not start if terminals
TE2 and El are con-
nected after the ignition switch is turned on, or terminals
TE2
and El are connected
after terminals
TEI and El are con-
nected.
l
0 The starter signal and vehicle speed signal will be diagnosed
by the ECU as malfunctions,
and codes No. 42, and 43 will
be output,
if the operation
in 3. above is not performed.
6.
Read the diagnosis
code as indicated
by the number
of
flashes
of the "CHECK ENGINE" warning
light.
(See page FI-27)
7.
After the diagnosis
check, remove the service wires.

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