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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 121 (Engine Control System (2GR-FKS) - Diagnostic Codes (05 Of 10)) >> SFI System >> DTC P0351-13: Ignition Coil "A" Circuit Open; DTC P0352-13: Ignition Coil "B" Circuit Open; DTC P0353-13: Ignition Coil "C" Circuit Open; DTC P0354-13: Ignition Coil "D" Circuit Open; DTC P0355-13: Ignition Coil "E" Circuit Open; DTC P0356-13: Ignition Coil "F" Circuit Open [06/2018 - 08/2021] >> Procedure

DTC P0351-13: Ignition Coil "A" Circuit Open; DTC P0352-13: Ignition Coil "B" Circuit Open; DTC P0353-13: Ignition Coil "C" Circuit Open; DTC P0354-13: Ignition Coil "D" Circuit Open; DTC P0355-13: Ignition Coil "E" Circuit Open; DTC P0356-13: Ignition Coil "F" Circuit Open [06/2018 - 08/2021]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 350, 2023 Lexus ES 350, 2022 Lexus ES 350, 2021 Lexus ES 350, and 2020 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. CLEAR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTC.

      Powertrain > Engine > Clear DTCs 

    5. Turn the engine switch off and wait for at least 30 seconds.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK WHETHER DTC OUTPUT RECURS (DTC P0351-13, P0352-13, P0353-13, P0354-13, P0355-13 OR P0356-13) 
    1. Shuffle the arrangement of the ignition coil assemblies (among No. 1 to No. 6 cylinders).
      NOTE:

      Do not change the location of the connectors.

    2. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
    3. Enter the following menus: Powertrain / Engine / Trouble Codes.
    4. Read the DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      Same DTC output A
      Different ignition coil DTC output B

      HINT: 

      Perform "Inspection After Repair" after replacing the ignition coil assembly.

      Refer to INITIALIZATION [06/2018 - 07/2019] , or refer to INITIALIZATION [07/2019 - ]

    Result: 

    B 

    REPLACE IGNITION COIL ASSEMBLY. Refer to  REMOVAL [06/2018 - ] 

    Result: 

    A 

    See step  3

  3. CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY) 
    GTY813437Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Ignition Coil Assembly)
    1. Disconnect the ignition coil assembly connector.
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      C1-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V
      C2-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V
      C3-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V
      C4-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V
      C5-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V
      C6-1 (+B) - Body ground Engine switch on (IG) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  6

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND) 
    1. Disconnect the ignition coil assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C1-4 (GND) - Body ground Always Below 1 Ω
      C2-4 (GND) - Body ground Always Below 1 Ω
      C3-4 (GND) - Body ground Always Below 1 Ω
      C4-4 (GND) - Body ground Always Below 1 Ω
      C5-4 (GND) - Body ground Always Below 1 Ω
      C6-4 (GND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM) 
    1. Disconnect the ignition coil assembly connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C1-2 (IGF1) - C32-112 (IGF1) Always Below 1 Ω
      C2-2 (IGF2) - C32-80 (IGF2) Always Below 1 Ω
      C3-2 (IGF1) - C32-112 (IGF1) Always Below 1 Ω
      C4-2 (IGF2) - C32-80 (IGF2) Always Below 1 Ω
      C5-2 (IGF1) - C32-112 (IGF1) Always Below 1 Ω
      C6-2 (IGF2) - C32-80 (IGF2) Always Below 1 Ω
      C1-3 (IGT1) - C32-71 (IGT1) Always Below 1 Ω
      C2-3 (IGT2) - C32-36 (IGT2) Always Below 1 Ω
      C3-3 (IGT3) - C32-70 (IGT3) Always Below 1 Ω
      C4-3 (IGT4) - C32-35 (IGT4) Always Below 1 Ω
      C5-3 (IGT5) - C32-69 (IGT5) Always Below 1 Ω
      C6-3 (IGT6) - C32-34 (IGT6) Always Below 1 Ω
      C1-2 (IGF1) or C32-112 (IGF1) - Body ground and other terminals Always 10 kΩ or higher
      C2-2 (IGF2) or C32-80 (IGF2) - Body ground and other terminals Always 10 kΩ or higher
      C3-2 (IGF1) or C32-112 (IGF1) - Body ground and other terminals Always 10 kΩ or higher
      C4-2 (IGF2) or C32-80 (IGF2) - Body ground and other terminals Always 10 kΩ or higher
      C5-2 (IGF1) or C32-112 (IGF1) - Body ground and other terminals Always 10 kΩ or higher
      C6-2 (IGF2) or C32-80 (IGF2) - Body ground and other terminals Always 10 kΩ or higher
      C1-3 (IGT1) or C32-71 (IGT1) - Body ground and other terminals Always 10 kΩ or higher
      C2-3 (IGT2) or C32-36 (IGT2) - Body ground and other terminals Always 10 kΩ or higher
      C3-3 (IGT3) or C32-70 (IGT3) - Body ground and other terminals Always 10 kΩ or higher
      C4-3 (IGT4) or C32-35 (IGT4) - Body ground and other terminals Always 10 kΩ or higher
      C5-3 (IGT5) or C32-69 (IGT5) - Body ground and other terminals Always 10 kΩ or higher
      C6-3 (IGT6) or C32-34 (IGT6) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [06/2018 - 10/2019]  , or refer to  REMOVAL [10/2019 - 08/2021] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  6. CHECK HARNESS AND CONNECTOR (IG2 NO. 1 RELAY - IGNITION COIL ASSEMBLY) 
    1. Remove the IG2 NO. 1 relay from the No. 1 engine room relay block and No. 1 junction block assembly.
    2. Disconnect the ignition coil assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      3 (IG2 NO. 1 relay) - C1-1 (+B) Always Below 1 Ω
      3 (IG2 NO. 1 relay) - C2-1 (+B) Always Below 1 Ω
      3 (IG2 NO. 1 relay) - C3-1 (+B) Always Below 1 Ω
      3 (IG2 NO. 1 relay) - C4-1 (+B) Always Below 1 Ω
      3 (IG2 NO. 1 relay) - C5-1 (+B) Always Below 1 Ω
      3 (IG2 NO. 1 relay) - C6-1 (+B) Always Below 1 Ω
      3 (IG2 NO. 1 relay) or C1-1 (+B) - Body ground and other terminals Always 10 kΩ or higher
      3 (IG2 NO. 1 relay) or C2-1 (+B) - Body ground and other terminals Always 10 kΩ or higher
      3 (IG2 NO. 1 relay) or C3-1 (+B) - Body ground and other terminals Always 10 kΩ or higher
      3 (IG2 NO. 1 relay) or C4-1 (+B) - Body ground and other terminals Always 10 kΩ or higher
      3 (IG2 NO. 1 relay) or C5-1 (+B) - Body ground and other terminals Always 10 kΩ or higher
      3 (IG2 NO. 1 relay) or C6-1 (+B) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    GO TO ECM POWER SOURCE CIRCUIT. Refer to  ECM Power Source Circuit [06/2018 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 NO. 1 RELAY - IGNITION COIL ASSEMBLY) 

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