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DTC P0506 ISC SYSTEM EC-1177 [VK45DE] C D E F G H I J K L M A EC DTC P0506 ISC SYSTEM PFP:23781 Description NBS005J9 NOTE: On Board Diagnosis Logic NBS005JA DTC Confirmation Procedure NBS005JB NOTE: ● If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait ● If the target idle speed is out of the specified value, perform EC-788, "Idle Air Volume Learning" before conducting DTC Confirmation Procedure. For the target idle speed, refer to the "SERVICE DATA AND SPECIFICATIONS (SDS)" TESTING CONDITION: ● Before performing the following procedure, confirm that battery voltage is more than 11V at idle. ● Always perform the test at a temperature above − 10 ° C (14 ° F). WITH CONSULT-II 1. Open engine hood. 2. Start engine and warm it up to normal operating temperature. 3. Turn ignition switch OFF and wait at least 10 seconds. 4. Turn ignition switch ON again and select “DATA MONITOR” 5. Start engine and run it for at least 1 minute at idle speed. 6. If 1st trip DTC is detected, go to . WITH GST Follow the procedure “WITH CONSULT-II” above. DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0506 Idle speed control system The idle speed is less than the target idle ● Electric throttle control actuator ● Intake air leak SEF174Y |