Lexus 2005 IS300 User Manual page 1050

Ohmmeter 3 (CL-)
4 (CL+)
E2
VC
2005 LEXUS IS300 (RM1140U)
B09507
1 (M+)
2 (M-)
B01620
Ohmmeter
B01942
SFI - THROTTLE BODY
(2) Turn the A/C switch ON and OFF, and check the idle
speed.
Idle speed (Transmission in neutral):
700 ± 50 rpm (A/C OFF)
750 ± 50 rpm (A/C ON)
NOTICE:
Perform inspection under condition without electrical load.
(3) With engine idling, pinch the air assist hose and
check that engine speed drops, and then returns
back up to idle speed.
If operation is not as specified, check the throttle body, wiring
and ECM.
(f) After checking the above (b) to (e), perform the diving test
and check that there is no sense of incongruity.
3. INSPECT THROTTLE CONTROL MOTOR
(a) Disconnect the throttle control motor connector.
(b) Using an ohmmeter, measure the resistance between ter-
minal 3 (CL-) and 4 (CL+).
Resistance: 4.2 - 5.2 Ω at 20°C (68°F)
(c) Using an ohmmeter, measure the resistance between ter-
minal 1 (M+) and 2 (M-).
Resistance: 0.3 - 100 Ω at 20°C (68°F)
If the resistance is not as specified, replace the throttle control
motor (See page SF-37
(d) Reconnect the throttle control motor connector.
4. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the throttle position sensor connector.
(b) Using an ohmmeter, measure the resistance between ter-
minals VC and E2.
Resistance: 1.2 - 3.2 kΩ at 20°C (68°F)
If the resistance is not as specified, replace the throttle position
sensor (See page SF-37
(c) Reconnect the throttle position sensor connector.
Author :
).
).
Date :
SF-33
1414