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2014
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Lancer ES Sportback
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Repair and Diagnosis
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External Pages
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Different car
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Section 52 (Automatic Transaxle On-Vehicle Service - With Diagnostics)
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Automatic Transaxle Diagnosis < A/T >
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Diagnostic Trouble Code Procedures
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DTC P1637: Memory Backup System
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Probable Causes
Probable Causes
WARNING:
This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
Damaged wiring harness and connectors
Malfunction of TCM (Faulty EEPROM)