SFI SYSTEM, Diagnostic DTC:P0351, P0352, P0353, P0354, P0355, P0356

DTC Code DTC Name
P0351 Ignition Coil "A" Primary / Secondary Circuit
P0352 Ignition Coil "B" Primary / Secondary Circuit
P0353 Ignition Coil "C" Primary / Secondary Circuit
P0354 Ignition Coil "D" Primary / Secondary Circuit
P0355 Ignition Coil "E" Primary / Secondary Circuit
P0356 Ignition Coil "F" Primary / Secondary Circuit

DESCRIPTION

Tech Tips


  • These DTCs indicate malfunctions relating to the primary circuit.

  • IF DTC P0351 is displayed, check the No. 1 ignition coil circuit.

  • IF DTC P0352 is displayed, check the No. 2 ignition coil circuit.

  • IF DTC P0353 is displayed, check the No. 3 ignition coil circuit.

  • IF DTC P0354 is displayed, check the No. 4 ignition coil circuit.

  • IF DTC P0355 is displayed, check the No. 5 ignition coil circuit.

  • IF DTC P0356 is displayed, check the No. 6 ignition coil circuit.

The Direct Ignition System (DIS) improves the ignition timing accuracy, reduces high-voltage loss, and enhances the overall reliability of the ignition system by eliminating the distributor.

The DIS is a 1 cylinder ignition system which ignites one cylinder with one ignition coil. In the 1 cylinder ignition system, 1 spark plug is connected to the end of the secondary winding. High voltage generated in the secondary winding is applied directly to the spark plug. The spark of the spark plug passes from the center electrode to the ground electrode.

The ECM determines the ignition timing and outputs the ignition signals (IGTs) for each cylinder. Based on the IGT signal, the power transistors in the igniter cut off the current to the primary coil in the ignition coil is supplied to the spark plug that is connected to the end of the secondary coil. At the same time, the igniter also sends an ignition confirmation signal (IGF) as a fail-safe measure to the ECM.

A01J3QLE03
DTC No. DTC Detection Condition Trouble Area

P0351

P0352

P0353

P0354

P0355

P0356

No IGF signal to ECM while engine is running

(1 trip detection logic)

  • Ignition system

  • Open or short in IGF or IGT1 to 6 circuit from ignition coil to ECM

  • No. 1 to No. 6 ignition coils

  • ECM

WIRING DIAGRAM

A01J51TE01

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK SPARK PLUG AND SPARK OF MISFIRING CYLINDER


    NG

    CHECK WIRE HARNESS (IGNITION COIL - ECM (IGT TERMINAL)) Click here

    OK

  2. CHECK WIRE HARNESS (IGNITION COIL - ECM (IGF TERMINAL))

    A01J4RVE04

    1. Disconnect the I1, I2, I3, I4, I10 and I11 ignition coil connectors.

    2. Disconnect the E15 ECM connector.

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance
      Tester Connection Specified Condition
      I1-2 (IGF) - E15-24 (IGF1) Below 1 Ω
      I2-2 (IGF) - E15-24 (IGF1) Below 1 Ω
      I3-2 (IGF) - E15-24 (IGF1) Below 1 Ω
      I4-2 (IGF) - E15-24 (IGF1) Below 1 Ω
      I10-2 (IGF) - E15-24 (IGF1) Below 1 Ω
      I11-2 (IGF) - E15-24 (IGF1) Below 1 Ω
      I1-2 (IGF) or E15-24 (IGF1) - Body ground 10 kΩ or higher
      I2-2 (IGF) or E15-24 (IGF1) - Body ground 10 kΩ or higher
      I3-2 (IGF) or E15-24 (IGF1) - Body ground 10 kΩ or higher
      I4-2 (IGF) or E15-24 (IGF1) - Body ground 10 kΩ or higher
      I10-2 (IGF) or E15-24 (IGF1) - Body ground 10 kΩ or higher
      I11-2 (IGF) or E15-24 (IGF1) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  3. CHECK ECM (IGF1 VOLTAGE)

    A01J6AVE15

    1. Disconnect the ignition coil connector.

    2. Turn the ignition switch ON.

    3. Measure the voltage of the E15 and E17 ECM connectors.

      Standard voltage
      Tester Connection Specified Condition
      E15-24 (IGF1) - E17-1 (E1) 4.5 to 5.5 V

    NG

    REPLACE ECM

    OK

    REPLACE IGNITION COIL ASSEMBLY

  4. CHECK WIRE HARNESS (IGNITION COIL - ECM (IGT TERMINAL))

    A01J4RVE05

    1. Disconnect the I1, I2, I3, I4, I10 and I11 ignition coil connectors.

    2. Disconnect the E15 ECM connector.

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance
      Tester Connection Specified Condition
      I1-3 (IGT1) - E15-8 (IGT1) Below 1 Ω
      I2-3 (IGT2) - E15-9 (IGT2) Below 1 Ω
      I3-3 (IGT3) - E15-10 (IGT3) Below 1 Ω
      I4-3 (IGT4) - E15-11 (IGT4) Below 1 Ω
      I10-3 (IGT5) - E15-12 (IGT5) Below 1 Ω
      I11-3 (IGT6) - E15-13 (IGT6) Below 1 Ω
      I1-3 (IGT1) or E15-8 (IGT1) - Body ground 10 kΩ or higher
      I2-3 (IGT2) or E15-9 (IGT2) - Body ground 10 kΩ or higher
      I3-3 (IGT3) or E15-10 (IGT3) - Body ground 10 kΩ or higher
      I4-3 (IGT4) or E15-11 (IGT4) - Body ground 10 kΩ or higher
      I10-3 (IGT5) or E15-12 (IGT5) - Body ground 10 kΩ or higher
      I11-3 (IGT6) or E15-13 (IGT6) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  5. CHECK ECM (IGT1, IGT2, IGT3, IGT4, IGT5, IGT6 VOLTAGE)

    A01J6AVE16

    1. Measure the voltage of the E15 and E17 ECM connectors when the engine is cranked.

      Standard voltage
      Tester Connection Specified Condition
      E15-8 (IGT1) - E17-1 (E1) 0.1 to 4.5 V
      E15-9 (IGT2) - E17-1 (E1) 0.1 to 4.5 V
      E15-10 (IGT3) - E17-1 (E1) 0.1 to 4.5 V
      E15-11 (IGT4) - E17-1 (E1) 0.1 to 4.5 V
      E15-12 (IGT5) - E17-1 (E1) 0.1 to 4.5 V
      E15-13 (IGT6) - E17-1 (E1) 0.1 to 4.5 V

    NG

    REPLACE ECM

    OK

  6. CHECK ECM (IGT1, IGT2, IGT3, IGT4, IGT5, IGT6 VOLTAGE)

    A01J7NPE02

    1. Disconnect the I1, I2, I3, I4, I10 and I11 ignition coil connectors.

    2. Measure the voltage of the E15 and E17 ECM connectors when the engine is cranked.

      Standard voltage
      Tester Connection Specified Condition
      E15-8 (IGT1) - E17-1 (E1) 4.5 V or more
      E15-9 (IGT2) - E17-1 (E1) 4.5 V or more
      E15-10 (IGT3) - E17-1 (E1) 4.5 V or more
      E15-11 (IGT4) - E17-1 (E1) 4.5 V or more
      E15-12 (IGT5) - E17-1 (E1) 4.5 V or more
      E15-13 (IGT6) - E17-1 (E1) 4.5 V or more

    NG

    REPLACE ECM

    OK

  7. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)

    A01J5LBE42

    1. Disconnect the I1, I2, I3, I4, I10 and I11 ignition coil connectors.

    2. Turn the ignition switch ON.

    3. Measure the voltage of the wire harness side connectors.

      Standard voltage
      Tester Connection Specified Condition
      I1-1 (+B) - Body ground 9 to 14 V
      I2-1 (+B) - Body ground 9 to 14 V
      I3-1 (+B) - Body ground 9 to 14 V
      I4-1 (+B) - Body ground 9 to 14 V
      I10-1 (+B) - Body ground 9 to 14 V
      I11-1 (+B) - Body ground 9 to 14 V

    OK

    REPLACE IGNITION COIL ASSEMBLY

    NG

  8. CHECK WIRE HARNESS (IGNITION COIL - IGNITION SWITCH)

    A01J4YJE04

    1. Disconnect the I1, I2, I3, I4, I10 and I11 ignition coil connectors.

    2. Disconnect the I8 ignition switch connector.

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance
      Tester Connection Specified Condition
      I1-1 (+B) - I8-6 (IG2) Below 1 Ω
      I2-1 (+B) - I8-6 (IG2) Below 1 Ω
      I3-1 (+B) - I8-6 (IG2) Below 1 Ω
      I4-1 (+B) - I8-6 (IG2) Below 1 Ω
      I10-1 (+B) - I8-6 (IG2) Below 1 Ω
      I11-1 (+B) - I8-6 (IG2) Below 1 Ω
      I1-1 (+B) or I8-6 (IG2) - Body ground 10 kΩ or higher
      I2-1 (+B) or I8-6 (IG2) - Body ground 10 kΩ or higher
      I3-1 (+B) or I8-6 (IG2) - Body ground 10 kΩ or higher
      I4-1 (+B) or I8-6 (IG2) - Body ground 10 kΩ or higher
      I10-1 (+B) or I8-6 (IG2) - Body ground 10 kΩ or higher
      I11-1 (+B) or I8-6 (IG2) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE IGNITION COIL ASSEMBLY