OBD II Fault Code P1684 :

Description of Fault code P1684

INTAKE SHUTTER VALVE (ISV) RETURN SPRING PERFORMANCE PROBLEM

Possible failuer P1684

• Intake Shutter Valve (ISV) Body Return Spring failure
• Intake Shutter Valve (ISV) Body friction increase (reluctance)

Diagnostic Procedure using AutoHex II Scan Tool

• The actual position of the Intake Shutter Valve (ISV) is detected less than a specified value for a set period of time.

Test Conditions using AutoHex tester

• Continuously

Clear Fault codes Conditions

• The actual position of the Intake Shutter Valve (ISV) is detected less than a specified value for a set period of time.

MIL Status

• Check Engine Light 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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