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

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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
A017BV3E01
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DESCRIPTION

A Direct Ignition System (DIS) is used on this vehicle.

The DIS is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil and one spark plug is connected to the end of each secondary wiring. High-voltage is generated in the secondary wiring and then applied directly to each spark plug. The sparks of the spark plugs pass from the center electrodes to the ground electrodes.

The ECM determines the ignition timing and transmits the ignition (IGT) signals to each cylinder. Using the IGT signal, the ECM turns the power transistor inside the igniter on and off. The power transistor, in turn, switches on and off the current to the primary coil. When the current to the primary coil is cut off, high- voltage is generated in the secondary coil. This voltage is applied to the spark plugs, causing them to spark inside the cylinders. As the ECM cuts the current to the primary coil off, the igniter sends back an ignition confirmation (IGF) signal to the ECM, for each cylinder ignition.

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 IGF1 or IGT (1 to 6) circuit between ignition coil with igniter and ECM

  • No. 1 to No. 6 ignition coils with igniters

  • ECM

Reference: Inspection using an oscilloscope

While cranking or idling, check the waveform between terminals IGT (1 to 6) and E1, and IGF1 and E1 of the ECM connector.

Item Content
Terminals

CH1: IGT1, IGT2, IGT3, IGT4, IGT5, IGT6 - E1

CH2: IGF1 - E1
Equipment Settings 2 V/DIV., 20 ms./DIV.
Conditions Cranking or idling
A017EMFE02
A017FFEE02
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WIRING DIAGRAM

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INSPECTION PROCEDURE

Tip:

  • These DTCs indicate malfunctions relating to the primary circuit.

  • If DTC P0351 is set, check the No. 1 ignition coil circuit.

  • If DTC P0352 is set, check the No. 2 ignition coil circuit.

  • If DTC P0353 is set, check the No. 3 ignition coil circuit.

  • If DTC P0354 is set, check the No. 4 ignition coil circuit.

  • If DTC P0355 is set, check the No. 5 ignition coil circuit.

  • If DTC P0356 is set, check the No. 6 ignition coil circuit.

  • Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, 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.

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PROCEDURE


  1. Click here

    CHECK DTC OUTPUT


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch on (IG).

    3. Turn the tester on.

    4. Enter the following menu items: Powertrain / Engine and ECT / DTC.

    5. Read the DTC.

      Result
      Result Proceed to
      DTC P0351, P0352, P0353, P0354 or P0356 is output A
      P0351, P0352, P0353, P0354 and P0356 are output B

  2. Click here

    CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353, P0354, P0355 OR P0356)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch on (IG).

    3. Turn the tester on.

    4. Clear the DTCs (Click here).

    5. Shuffle arrangement of the ignition coils with igniters (among No. 1 to No. 6 cylinders).

      Note:

      Do not shuffle the connectors.

    6. Perform a simulation test.

    7. Check the DTCs displayed on the tester.

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

  3. Click here

    CHECK IGNITION COIL ASSEMBLY (POWER SOURCE)


    1. A017F96E16

      Disconnect the ignition coil connector of malfunctioning cylinder.

    2. Turn the ignition switch on (IG).

    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      1 (+B) - Body ground Ignition switch on (IG) 9 to 14 V

    4. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Condition Specified Condition
      4 (GND) - Body ground Always Below 1 Ω

    5. Reconnect the ignition coil connector.


  4. Click here

    CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)


    1. A017D8CE04

      Disconnect the ignition coil connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open)
      Tester Connection Condition Specified Condition
      B30-2 (IGF) - B1-24 (IGF1) Always Below 1 Ω
      B31-2 (IGF) - B1-24 (IGF1) Always Below 1 Ω
      B32-2 (IGF) - B1-24 (IGF1) Always Below 1 Ω
      B33-2 (IGF) - B1-24 (IGF1) Always Below 1 Ω
      B34-2 (IGF) - B1-24 (IGF1) Always Below 1 Ω
      B35-2 (IGF) - B1-24 (IGF1) Always Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Condition Specified Condition
      B30-2 (IGF) or B1-24 (IGF1) - Body ground Always 10 kΩ or higher
      B31-2 (IGF) or B1-24 (IGF1) - Body ground Always 10 kΩ or higher
      B32-2 (IGF) or B1-24 (IGF1) - Body ground Always 10 kΩ or higher
      B33-2 (IGF) or B1-24 (IGF1) - Body ground Always 10 kΩ or higher
      B34-2 (IGF) or B1-24 (IGF1) - Body ground Always 10 kΩ or higher
      B35-2 (IGF) or B1-24 (IGF1) - Body ground Always 10 kΩ or higher

    4. Reconnect the ignition coil connector.

    5. Reconnect the ECM connector.


  5. Click here

    CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)


    1. A017D8CE05

      Disconnect the ignition coil connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open)
      Tester Connection Condition Specified Condition
      B30-3 (IGT1) - B1-8 (IGT1) Always Below 1 Ω
      B31-3 (IGT2) - B1-9 (IGT2) Always Below 1 Ω
      B32-3 (IGT3) - B1-10 (IGT3) Always Below 1 Ω
      B33-3 (IGT4) - B1-11 (IGT4) Always Below 1 Ω
      B34-3 (IGT5) - B1-12 (IGT5) Always Below 1 Ω
      B35-3 (IGT6) - B1-13 (IGT6) Always Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Condition Specified Condition
      B30-3 (IGT1) or B1-8 (IGT1) - Body ground Always 10 kΩ or higher
      B31-3 (IGT2) or B1-9 (IGT2) - Body ground Always 10 kΩ or higher
      B32-3 (IGT3) or B1-10 (IGT3) - Body ground Always 10 kΩ or higher
      B33-3 (IGT4) or B1-11 (IGT4) - Body ground Always 10 kΩ or higher
      B34-3 (IGT5) or B1-12 (IGT5) - Body ground Always 10 kΩ or higher
      B35-3 (IGT6) or B1-13 (IGT6) - Body ground Always 10 kΩ or higher

    4. Reconnect the ignition coil connector.

    5. Reconnect the ECM connector.


  6. Click here

    INSPECT FUSE (INJ NO. 1 FUSE)


    1. A017ENJE03

      Remove the INJ No. 1 fuse from the engine room relay block.

    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Check for open)
      Tester Connection Condition Specified Condition
      INJ No. 1 fuse Always Below 1 Ω

    3. Reinstall the fuse.


  7. Click here

    INSPECT RELAY (IG2 RELAY)


    1. A017B6E

      Remove the IG2 relay from the engine room relay block.

    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Condition Specified Condition
      3 - 5 No battery 10 kΩ or higher
      3 - 5 When battery voltage applied to terminals 1 and 2 Below 1 Ω

    3. Reinstall the IG2 relay.


  8. Click here

    REPLACE IGNITION COIL ASSEMBLY (MALFUNCTIONING CYLINDER)Click here

  9. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL ASSEMBLY - ECM)

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    REPLACE ECMClick here

  11. Click here

    REPLACE FUSE (INJ NO. 1 FUSE)

  12. Click here

    REPLACE RELAY

  13. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - INJ NO. 1 FUSE)