ke10: Check for ISC Signal From the Processor
| Steps | _Key Off
_Reconnect ISC solenoid _Breakout box installed _Connect processor to breakout box _DVOM on 20 volt scale _Connect DVOM between Test Pin 21 and Test Pin 40. _Start engine _Slowly increase and decrease RPM |
| Result | Does DVOM voltage vary? |
| Direction | YES
GO to Continue NO Remove breakout box. Replace processor. Rerun Quick Test. |
| Component | Idle Speed Controller/Idle Bypass Valve |
| Description | The
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 |
| Location | Mounted onto the throttle body. Cylinder shape device. |
| Wire Colors | Red
Grey with White stripe |
| Image |  |