BE6653
P24393
A02352
RSO
RSC
ON
(--)
(+)
--
DIAGNOSTICS
ENGINE (2RZ--FE, 3RZ--FE)
DI--149
5 Check the blockage of ISC valve and the passage to bypass the throttle valve.
NG
Repair or replace ISC valve.
OK
Check and replace engine ECU
When not using hand--held tester
1 Check voltage between terminals RSO, RSC of engine ECU and body ground.
PREPARATION:
(b)
Disconnect the E4 connector of engine ECU.
(c)
Turn ignition switch ON.
CHECK:
Measure voltage between terminals RSO, RSC of engine ECU
connector and body ground,
OK:
Voltage: 9
∼
14 V
OK Go to step 5.
NG
2 Check ISC valve.
NG
Replace ISC valve.
OK
Check for open and short in harness and con-
nector between J/B and ISC valve and engine
ECU
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3RZ-F,3RZ-FE