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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 140 (Hybrid Control System (For Lithium-Ion Battery) - Diagnostic Codes (2 Of 4)) >> HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY) >> DTC P1AC4-13: Hybrid/EV Battery Stack 1 Current Interrupt Device Circuit Open [08/2020 - ] >> Monitor Description

Monitor Description

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A malfunction is detected and the MIL is illuminated when following condition is met:

  1. A large fluctuation in the DC/DC converter voltage occurs due to operation of the battery current interrupt device.
  2. A large fluctuation in the battery charger output voltage occurs due to operation of the battery current interrupt device.
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