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P1505 Idle Speed Control Actuator Signal Low of Coil #1

AutoHex Online Help: Hyundai i20(PB) 2011
Component Location
General Description

The ISCA (Idle Speed Control Actuator) is designed to maintain a steady desired idle speed. Idle airflow is adjustedthrough the idle air actuator in order to maintain the desired idle speed under various load conditions. Load conditions vary due to numerous factors, such as engine temperature, air conditioning, electrical load and power steering load.



DTC Description

If there is Open or Short to ground in ISCA(opening coil) circuit, ECM sets DTC P1505.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Circuit continuity check, low (opening coil)

Poor connection

Open or short to ground in control circuit

ISCA

Enable Conditions

Vehicle speed = 0

Coolant temperature > 70?

Intake air temperature > -6?

Idle status

No error on the related sensors. (PCSV,VSS,ECTS,IATS,etc)

Threshold Value

Shorted to ground or disconnected

Diagnostic Time

Continuous

MIL ON Condition

3 driving cycle

Specification

Item

Specification

Opening Coil Resistance (O)

11.1 ~ 12.7 [20 ? 68 ?]

Closing Coil Resistance (O)

14.6 ~ 16.2 [20 ? 68 ?]

Diagnostic Circuit Diagram
Signal Waveform & Data