FI01O--01
P23356
ISC Valve
RSC
+B
RSO
Ohmmeter
P15730
RSC +B
Battery
Closed
P15729
RSO
+B
Battery
Open
FI--48
--
ELECTRONIC FUEL INJECTION
IDLE SPEED CONTROL (ISC) VALVE (2RZ--FE)
INSPECTION
1.
INSPECT ISC VALVE RESISTANCE
NOTICE:
”Cold” and ”Hot” in the following sentences express the
temperature of the coils themselves. ”Cold” is from --10
˚
C
(14
˚
F) to 50
˚
C (122
˚
F) and ”Hot” is from 50
˚
C (122
˚
F) to
100
˚
C (212
˚
F).
Using an ohmmeter, measure the resistance between terminal
+B and other terminals (RSC, RSO).
Resistance:
Cold: 17.0 -- 24.5
Ω
Hot: 21.5 -- 28.5
Ω
If resistance is not as specified, replace the ISC valve.
2.
INSPECT ISC VALVE OPERATION
(a)
Connect the positive (+) lead from the battery to terminal
+B and negative (--) lead to terminal RSC, and check that
the valve is closed.
(b)
Connect the positive (+) lead from the battery to terminal
+B and negative (--) lead to terminal RSO, and check that
the valve is open.
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Pages From Supplement
3RZ-F,3RZ-FE