FUEL INJECTION SYSTEM
FI
ifl
Fault code No. 61 Symptom ISC (idle speed control) valve open or short circuit is detected.
Used diagnostic code No. --
Order
Inspection operation item and
probable cause
Operation item and countermeasure
Reinstatement
method
1
2
3
Connected condition of con-
nector
Inspect the coupler for any
pins that may have pulled
out.
Check the locking condition
of the coupler.
If there is a malfunction, repair it and connect
it securely.
ISC (idle speed control) valve coupler
Main wiring harness ECU coupler
Reinstated by set-
ting the main switch
to ON, The ISC (idle
speed control) valve
fully closes, and
then it opens until it
is at the standby
opening position
when the engine is
started.
1
2
3
Open or short circuit in lead.
Repair or replace if there is an open or short
circuit.
Between ISC (idle speed control) valve and
ECU coupler/main harness
pink- pink
green/yellow-green/yellow
gray - gray
sky blue-sky blue
Reinstated by set-
ting the main switch
to ON, The ISC (idle
speed control) valve
fully closes, and
then it opens until it
is at the standby
opening position
when the engine is
started.
1
2
3
Detective ISC (idle speed con-
trol) valve
Execute diagnostic mode (code No.D54)
Replace the throttle body.
NOTE:
Do not remove the ISC (idle speed control)
valve.
Refer to “THROTTLE BODY AND FUEL IN-
JECTOR ”.
Reinstated by set-
ting the main switch
to ON, The ISC (idle
speed control) valve
fully closes, and
then it opens until it
is at the standby
opening position
when the engine is
started.
7-25
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