LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2025 >> NX 250 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 30 (Motor Generator Control System - Diagnostic Codes (5 Of 5)) >> Motor Generator Control System >> DTC P1CFF-62: Hybrid/EV Battery Current/DC/DC Converter Current Signal Compare Failure [11/2021 - ] >> Procedure

DTC P1CFF-62: Hybrid/EV Battery Current/DC/DC Converter Current Signal Compare Failure [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC OUTPUT 
    1. Check for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      Powertrain > Motor Generator > Trouble Codes 

      Powertrain > HV Battery > Trouble Codes 

      Result

      Result Proceed to
      P1CFF-62 only is output, or DTCs except the ones in the table below are also output. A
      DTCs of hybrid control system in the tables below are output. B
      DTCs of motor generator control system in the tables below are output. C
      DTCs of hybrid battery control system in the tables below are output. D
      TABLE 1

      Malfunction Content System Relevant DTC
      Insulation Malfunction Hybrid control system P1C7C-49 Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure
      P1C7D-49 Hybrid/EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure
      P1C7E-49 Hybrid/EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure
      P1C7F-49 Hybrid/EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure
      P1C80-49 Hybrid/EV Battery Voltage System Isolation (Rear Motor Area) Internal Electronic Failure
      HV Battery Malfunction Hybrid battery control system P0606-87 Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message
      P060A-47 Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
      P060A-87 Hybrid/EV Battery Energy Control Module Processor from Monitoring Processor Missing Message
      P060B-16 Hybrid/EV Battery Energy Control Module A/D Processing Circuit Voltage Below Threshold
      P060B-49 Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure
      P0ABF-11 Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground
      P0ABF-15 Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open
      P0ABF-28 Hybrid/EV Battery Current Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure
      P0ABF-2A Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range
      P0B0E-11 Hybrid/EV Battery Current Sensor "B" Circuit Short to Ground
      P0B0E-15 Hybrid/EV Battery Current Sensor "B" Circuit Short to Auxiliary Battery or Open
      P0B13-62 Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure
      P0E2D-00 Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance
      P1C9F-11 Hybrid/EV Battery Current Sensor for Driving Control Circuit Short to Ground
      P1C9F-15 Hybrid/EV Battery Current Sensor for Driving Control Circuit Short to Auxiliary Battery or Open
      P1C9F-1C Hybrid/EV Battery Current Sensor for Driving Control Voltage Out of Range
      P1CBB-12 Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery
      P1CBB-14 Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open
      Hybrid control system P0ABF-00 Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance
      U0111-87 Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message
      TABLE 2

      Malfunction Content System Relevant DTC
      Microcomputer malfunction Motor generator control system P0A1A-47 Generator Control Module Watchdog / Safety MC Failure
      P0A1A-49 Generator Control Module Internal Electronic Failure
      P0A1B-1F Generator Control Module Circuit Intermittent
      P1C2A-1C Generator A/D Converter Circuit Circuit Voltage Out of Range
      P1C2A-49 Generator A/D Converter Circuit Internal Electronic Failure
      P1C2B-1C Drive Motor "A" Control Module A/D Converter Circuit Voltage Out of Range
      P1C2B-49 Drive Motor "A" Control Module A/D Converter Circuit Internal Electronic Failure
      P3133-83 Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect
      P3133-86 Communication Error from Generator to Drive Motor "A" Signal Invalid
      P3133-87 Communication Error from Generator to Drive Motor "A" Missing Message
      P3134-83 Communication Error from Drive Motor "A" to Generator Value of Signal Protection Calculation Incorrect
      P3134-86 Communication Error from Drive Motor "A" to Generator Signal Invalid
      P3134-87 Communication Error from Drive Motor "A" to Generator Missing Message
      Hybrid control system P0A1B-49 Drive Motor "A" Control Module Internal Electronic Failure
      Power source circuit malfunction Motor generator control system P06B0-1C Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range
      P06D6-1C Generator Control Module Offset Power Circuit Voltage Out of Range
      P262C-1C Drive Motor "B" Control Module Offset Power Circuit Voltage Out of Range
      Communication malfunction Motor generator control system P3124-87 Lost Communication between Drive Motor "A" and HV/EV ECU Missing Message
      Hybrid control system P3123-87 Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message
      Sensor and actuator circuit malfunction Motor generator control system P0E51-11 DC/DC Converter Current Sensor Circuit Short to Ground
      P0E51-15 DC/DC Converter Current Sensor Circuit Short to Battery or Open
      P0E51-28 DC/DC Converter Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure

      HINT: 

      • P1CFF-62 may be output as a result of the malfunction indicated by the DTCs above.
        1. The chart above is listed in inspection order of priority.
        2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
    2. Turn the ignition switch off.

    Result: 

    B 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - 03/2024]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [03/2024 - ] 

    Result: 

    C 

    GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - ] 

    Result: 

    D 

    GO TO DTC CHART (HYBRID BATTERY SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - ] 

    Result: 

    A 

    See step  2

  2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) 

    Refer to PROCEDURE - Step 3

    Result

    Result Proceed to
    OK A
    NG (The connector is not connected securely.) B
    NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    Result: 

    A 

    REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    B 

    CONNECT SECURELY 

    Result: 

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals