Toyota 3S-GE Repair Manual page 273

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ENGINE — EFI SYSTEM EG'259
ON —VEHICLE INSPECTION
1. INSPECT ISC VALVE OPERATION
(a) Initial conditions:
0 Engine at normal operating temperature
0 Idle speed set correctly
Using SST, connect terminals TE1 and E1 of the check
connector.
,, TE1\ SST ssr 09843-18020
L_fig___ El I (c) After engine rpm are kept at 1,000 — 1,300 rpm for 5
\ seconds, check that the rpm drops to about idle
\' \ speed.
Check Connector
ST202 (b)
5| C)' C D
:55
/
/
si s ' ?
If the rpm operation is not as specified, check the ISC
valve, wiring and engine ECU.
SW20
Check Connector
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2
V'
"
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E C ) I
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IE1: \
ma
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P151 59
P056135 Z127%
(d) Remove SST.
V' SST SST O9843— 18020
(e) Check the idle speed.
Idle speed:
' ST202:
w/ Daytime running light system
750 i 50 rpm
check Connector w/o Daytime running light system
Plslel ' mm 700 i 50 rpm
.7
Q55"!
7/
/
'
SW20:
w/ Daytime running light system
850 i 50 rpm
w/o Daytime running light system
750 i 50 rpm
ifa;