Diagnostic Method

2014 Subaru Impreza Sport LimitedSECTION Diagnostic Method
  • Abnormality Judgment 

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Tumble generator valve opening switch = High
Tumble generator valve "close" signal output time ≥ 1600 ms

Time Needed for Diagnosis:  4600 ms

Malfunction Indicator Light Illumination:  Illuminates as soon as a malfunction occurs.

  • Normality Judgment 

Judge as OK and clear the NG if the following conditions are established.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Tumble generator valve opening switch = Low
Tumble generator valve "close" signal output time ≥ 1600 ms

Time Needed for Diagnosis:  1600 ms

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.