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DTC C1378/44 Capacitor Communication Malfunction: Description

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC C1377/43 (see DTC C1377/43 CAPACITOR MALFUNCTION  ).

DTC DETECTION CONDITION

DTC Code Information Code DTC Detection Condition Trouble Area
C1378/44 112 When one of the following is detected
  1. Open or short in FAIL line
  2. Malfunction inside the power back up unit
  3. IG1 terminal voltage is 9 5 V or more, and condition that capacitor communication malfunction signal is received or capacitor communication is malfunctioning continues for 12 seconds or more
  • Harness or connector
  • Brake control power supply
  • Skid control ECU
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