OBD II Fault Code P15C4 :

Description of Fault code P15C4

Auto Idle Stop Systrm Malfunction

Possible failuer P15C4

• This DTC is not IMA system failure.
• When there is malfunction to a secondary brake switch (idle stop switch), a brake power assist pressure, a sensor of air-conditioner, this DTC is detected.
• When this DTC is detected, the following IMA warning lights turn on.
• 
• You can confirm a trouble point when you watch the following signals from a PGM-FI data list. After the repair back please clear this DTC.
• AUTO IDLE STOP DOSE NOT OCCUR(BRAKE)
• AUTO IDLE STOP DOSE NOT OCCUR(IDLE STOP S-W)
• AUTO IDLE STOP DOSE NOT OCCUR(A/C)

Diagnostic Procedure using AutoHex II Scan Tool

• Self-diagnosis in the LKAS camera

Test Conditions using AutoHex tester

• None

Clear Fault codes Conditions

• Self-diagnosis in the LKAS camera

MIL Status

• Glow ON

Note:

• AutoHex II is a professional Auto diagnostic.
• This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
  To get the accurate fault code description you may use AutoHex II

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