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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Keyless Operation System (Kos) - With Diagnostics) >> Diagnosis < OSS-Ecu > >> Diagnostic Trouble Code Procedures >> DTC B1139: KOS authentification timeout >> Diagnosis

DTC B1139: KOS authentification timeout: Diagnosis

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.
  1. Using scan tool (M.U.T.-III), diagnose the CAN bus line. [after turning the forced power supply output to "IG-ON" using the scan tool (M.U.T.-III)]
  2. KOS-ECU diagnostic trouble code check [after turning the forced power supply output to "IG-ON" using the scan tool (M.U.T.-III)]
  3. OSS-ECU diagnostic trouble code recheck
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