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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Hybrid Battery System - Diagnostic Codes (5 Of 5) & Symptom Tests) >> HYBRID BATTERY SYSTEM (for PHEV Model) >> DTC P33E0-1B: Hybrid/EV Battery Stack 1 Circuit Resistance Above Threshold; DTC P33E1-1B: Hybrid/EV Battery Stack 2 Circuit Resistance Above Threshold; DTC P33E2-1B: Hybrid/EV Battery Stack 3 Circuit Resistance Above Threshold; DTC P33E3-1B: Hybrid/EV Battery Stack 4 Circuit Resistance Above Threshold [12/2023 - ] >> Description

DTC P33E0-1B: Hybrid/EV Battery Stack 1 Circuit Resistance Above Threshold; DTC P33E1-1B: Hybrid/EV Battery Stack 2 Circuit Resistance Above Threshold; DTC P33E2-1B: Hybrid/EV Battery Stack 3 Circuit Resistance Above Threshold; DTC P33E3-1B: Hybrid/EV Battery Stack 4 Circuit Resistance Above Threshold [12/2023 - ]: Description

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.

The HV battery is composed of 96 cells (3.7 V each) in series. The battery ECU assembly monitors the internal resistance of each HV battery cell to detect malfunctions of the HV battery.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate DTC Output from Priority Note
P33E0-1B Hybrid/EV Battery Stack 1 Circuit Resistance Above Threshold The internal resistance of any cell of the No. 1 HV supply stack sub-assembly exceeds the threshold.
(1 trip detection logic)
  • No. 1 HV supply stack sub-assembly
  • Service plug grip
Comes on Master Warning:
Comes on
HV Battery A SAE Code:
P33E0
P33E1-1B Hybrid/EV Battery Stack 2 Circuit Resistance Above Threshold The internal resistance of any cell of the No. 2 HV supply stack sub-assembly exceeds the threshold.
(1 trip detection logic)
  • No. 2 HV supply stack sub-assembly
  • Service plug grip
Comes on Master Warning:
Comes on
HV Battery A SAE Code:
P33E1
P33E2-1B Hybrid/EV Battery Stack 3 Circuit Resistance Above Threshold The internal resistance of any cell of the No. 3 HV supply stack sub-assembly exceeds the threshold.
(1 trip detection logic)
  • No. 3 HV supply stack sub-assembly
  • Service plug grip
Comes on Master Warning:
Comes on
HV Battery A SAE Code:
P33E2
P33E3-1B Hybrid/EV Battery Stack 4 Circuit Resistance Above Threshold The internal resistance of any cell of the No. 4 HV supply stack sub-assembly exceeds the threshold.
(1 trip detection logic)
  • No. 4 HV supply stack sub-assembly
  • Service plug grip
Comes on Master Warning:
Comes on
HV Battery A SAE Code:
P33E3

HINT: 

These DTCs can be stored after clearing DTCs and driving the vehicle for approximately 10 minutes.