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Lancer Evolution GSR
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Repair and Diagnosis (Single Page)
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Manual Trans
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Manual Transaxle On-Vehicle Service - With Diagnostics - Lancer Evolution
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Diagnosis < S-AWC (Super All Wheel Control) >
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Diagnostic Trouble Code Procedures
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DTC U0121: ASC Time-out Error
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DTC Set Conditions
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DTC Set Conditions
The code is set when the signal sent from the ASC-ECU cannot be received for a certain period.