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ke11: Check Curb Idle
Steps _Is curb idle within specification?
Direction YES

Remove breakout box. Reconnect processor. Replace ISC solenoid. Rerun Quick Test


Remove breakout box. Reconnect processor. Check vacuum hoses. Refer to VECI decal. Check that the throttle plates are fully closed. Check throttle linkage and/or speed control linkage for binding. If OK, replace ISC solenoid. Rerun Quick Test.

ISC Information:
ComponentIdle Speed Controller/Idle Bypass Valve
DescriptionThe ISC is used to control engine idle speed and is controlled by the EEC. The ISC allows the EEC to control the engine RPM by allowing intake air flow around the throttle plate.

The ISC has the following functions:
Cold engine fast idle
No accelerator pedal effort required during engine cranking
Dashpot function to help prevent engine stalling upon de-accleration
Over temperature idle boost
Engine idle load correction
LocationMounted onto the throttle body. Cylinder shape device.
Wire ColorsRed
Grey with White stripe