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2017
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Mirage ES, Automatic CVT Trans
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Continuously Variable Transaxle (CVT)
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Diagnosis
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Diagnostic Trouble Code Procedures
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DTC P1637: Malfunction Of Memory Backup
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Descriptions Of Monitor Methods
Descriptions Of Monitor Methods
When the ignition switch is turned to the "ON" position, TCM determines that the writing to the EEPROM area had failed last time the ignition switch was turned to the "LOCK" (OFF) position.