Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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GD(H4DOTC)-20 Diagnostic Trouble Code (DTC) Detecting Criteria GENERAL DESCRIPTION 5. DIAGNOSTIC METHOD Judge as NG when the absolute value of the difference between cam signal input position and learning value is out of specification. Time Needed for Diagnosis: 20000 ms Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy- cles. Initial standard learning value is the value of crank angle initially input at the production plant. And then it will be updated every time normal judgment has been completed. Learning value will not be updated if NG judg- ment occurs because timing belt or chain derails suddenly in process or because wrong assembly occurs during servicing. than the predetermined time. Time Needed for Diagnosis: Less than 1 second Judgment Value Malfunction Criteria Threshold Value |Crankshaft position when camshaft position sensor signal is > 8.5 °CA Judgment Value Malfunction Criteria Threshold Value |Crankshaft position when camshaft position sensor signal is ≤ 8.5 °CA |