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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 125 (Engine Control System (4GR-FSE) - Diagnostic Codes (3 Of 5)) >> SFI System >> DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354: Ignition Coil "D" Primary / Secondary Circuit; DTC P0355: Ignition Coil "E" Primary / Secondary Circuit; DTC P0356: Ignition Coil "F" Primary / Secondary Circuit [04/2013 - 08/2015] >> Procedure

DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354: Ignition Coil "D" Primary / Secondary Circuit; DTC P0355: Ignition Coil "E" Primary / Secondary Circuit; DTC P0356: Ignition Coil "F" Primary / Secondary Circuit [04/2013 - 08/2015]: Procedure

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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
      F30-4 (GND) - Body ground Always Below 1 Ω
      F6-4 (GND) - Body ground Always Below 1 Ω
      F31-4 (GND) - Body ground Always Below 1 Ω
      Z2-4 (GND) - Body ground Always Below 1 Ω
      F32-4 (GND) - Body ground Always Below 1 Ω
      Z1-4 (GND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  2

  2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY) 
    1. Disconnect the ignition coil assembly connector.
      GTY465361Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Ignition Coil Assembly)
    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
      F30-1 (+B) - F30-4 (GND) Engine switch on (IG) 11 to 14 V
      F6-1 (+B) - F6-4 (GND) Engine switch on (IG) 11 to 14 V
      F31-1 (+B) - F31-4 (GND) Engine switch on (IG) 11 to 14 V
      Z2-1 (+B) - Z2-4 (GND) Engine switch on (IG) 11 to 14 V
      F32-1 (+B) - F32-4 (GND) Engine switch on (IG) 11 to 14 V
      Z1-1 (+B) - Z1-4 (GND) Engine switch on (IG) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  5

    Result: 

    OK 

    See step  3

  3. 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
      F30-3 (IGT1) - F3-27 (IGT1) Always Below 1 Ω
      F6-3 (IGT2) - F2-23 (IGT2) Always Below 1 Ω
      F31-3 (IGT3) - F3-26 (IGT3) Always Below 1 Ω
      Z2-3 (IGT4) - F2-22 (IGT4) Always Below 1 Ω
      F32-3 (IGT5) - F3-25 (IGT5) Always Below 1 Ω
      Z1-3 (IGT6) - F2-21 (IGT6) Always Below 1 Ω
      F30-2 (IGF1) - F3-32 (IGF1) Always Below 1 Ω
      F6-2 (IGF2) - F2-28 (IGF2) Always Below 1 Ω
      F31-2 (IGF1) - F3-32 (IGF1) Always Below 1 Ω
      Z2-2 (IGF2) - F2-28 (IGF2) Always Below 1 Ω
      F32-2 (IGF1) - F3-32 (IGF1) Always Below 1 Ω
      Z1-2 (IGF2) - F2-28 (IGF2) Always Below 1 Ω
      F30-3 (IGT1) or F3-27 (IGT1) - Body ground Always 10 kΩ or higher
      F6-3 (IGT2) or F2-23 (IGT2) - Body ground Always 10 kΩ or higher
      F31-3 (IGT3) or F3-26 (IGT3) - Body ground Always 10 kΩ or higher
      Z2-3 (IGT4) or F2-22 (IGT4) - Body ground Always 10 kΩ or higher
      F32-3 (IGT5) or F3-25 (IGT5) - Body ground Always 10 kΩ or higher
      Z1-3 (IGT6) or F2-21 (IGT6) - Body ground Always 10 kΩ or higher
      F30-2 (IGF1) or F3-32 (IGF1) - Body ground Always 10 kΩ or higher
      F6-2 (IGF2) or F2-28 (IGF2) - Body ground Always 10 kΩ or higher
      F31-2 (IGF1) or F3-32 (IGF1) - Body ground Always 10 kΩ or higher
      Z2-2 (IGF2) or F2-28 (IGF2) - Body ground Always 10 kΩ or higher
      F32-2 (IGF1) or F3-32 (IGF1) - Body ground Always 10 kΩ or higher
      Z1-2 (IGF2) or F2-28 (IGF2) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353, P0354, P0355 OR P0356) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [04/2013 - 08/2015]

      Powertrain > Engine > Clear DTCs 

    5. Shuffle the arrangement of the ignition coil assemblies (among No. 1 to No. 6 cylinders).
      NOTE:

      Do not change the location of the connectors.

    6. Perform a simulation test.
    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
    8. 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 [04/2013 - 08/2015]

    Result: 

    A 

    REPLACE ECM. Refer to  REMOVAL [04/2013 - 08/2015] 

    Result: 

    B 

    REPLACE IGNITION COIL ASSEMBLY. Refer to  REMOVAL [04/2013 - 08/2015] 

  5. CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - SEMICONDUCTOR PWR INTEGRATION ECU) 
    1. Disconnect the ignition coil assembly connector.
    2. Disconnect the semiconductor pwr integration ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F30-1 (+B) - 2G-4 Always Below 1 Ω
      F6-1 (+B) - 2G-4 Always Below 1 Ω
      F31-1 (+B) - 2G-4 Always Below 1 Ω
      Z2-1 (+B) - 2G-4 Always Below 1 Ω
      F32-1 (+B) - 2G-4 Always Below 1 Ω
      Z1-1 (+B) - 2G-4 Always Below 1 Ω
      F30-1 (+B) or 2G-4 - Body ground Always 10 kΩ or higher
      F6-1 (+B) or 2G-4 - Body ground Always 10 kΩ or higher
      F31-1 (+B) or 2G-4 - Body ground Always 10 kΩ or higher
      Z2-1 (+B) or 2G-4 - Body ground Always 10 kΩ or higher
      F32-1 (+B) or 2G-4 - Body ground Always 10 kΩ or higher
      Z1-1 (+B) or 2G-4 - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SEMICONDUCTOR PWR INTEGRATION ECU. Refer to  REMOVAL [04/2013 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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