Ac Idle-Up Valve - Toyota 1 MZ–FE Manual

1MZ–FE ENGINE – SFI SYSTEM
AC IDLE–UP VALVE
ON–VEHICLE INSPECTION
INSPECT A/C IDLE–UP VALVE OPERATION
(a) Initial conditions:
Engine at normal operating temperature
Idle speed set correctly
Transmission in neutral position
A/C switch ON
(b) Using SST, connect terminals TE1 and E1 of the DLC
1, check that idle–up occurs for approx. 3 seconds.
SST 09843–18020
Valve operation is faulty if during the idle–up period
the engine speed drops by 100 rpm or more, rough
idle occurs, or the engine stalls.
(c) Observe the idle speed for approx. 3 to 15 seconds.
During this time the idle –up valve should go off, the
IAC valve half –open and idle –up should occur.
EG2–295