СИСТЕМА SFI, Diagnostic DTC:P0351, P0352, P0353, P0354

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

DESCRIPTION

Tech Tips


  • These DTCs indicate malfunctions relating to the primary circuit.

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

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

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

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

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. A powerful voltage, generated in the secondary wiring, is applied directly to each spark plug. The sparks of the spark plugs pass from the center electrode 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, a powerful 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, the igniter sends back an ignition confirmation (IGF) signal to the ECM for each cylinder ignition.

A003HD2E45
DTC No. DTC Detection Condition Trouble Area

P0351

P0352

P0353

P0354

 No IGF signal is sent to the ECM while the engine is running (ECM does not receive any IGF signals despite the ECM sending an IGT signal to the igniter) (1 trip detection logic).

  • Ignition system

  • Open or short in IGF1 or IGT (1 to 4) circuit between ignition coil and ECM

  • No. 1 to No. 4 ignition coil assemblies

  • ECM

MONITOR DESCRIPTION

A003H8DE08

If the ECM does not receive any IGF signals despite transmitting the IGT signal, it interprets this as a fault in the igniter and stores a DTC.

If the malfunction is not repaired successfully, a DTC is stored 1 second after the engine is next started.

MONITOR STRATEGY

Required Sensors/Components (Main) Igniter
Required Sensors/Components (Related) ECM
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  1. Connect the intelligent tester to the DLC3.

  2. Turn the ignition switch to ON and turn the intelligent tester on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the ignition switch off and wait for at least 30 seconds.

  5. Turn the ignition switch to ON and turn the intelligent tester on.

  6. Start the engine.

  7. Idle the engine for 20 seconds or more.

  8. Enter the following menus: Powertrain / Engine and ECT / DTC.

  9. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  11. Input the DTC: P0351, P0352, P0353 or P0354.

  12. Check the DTC judgment result.

    Intelligent Tester Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment completed

    • Perform driving pattern after confirming DTC enabling conditions
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

Refer to DTC P0300 Click here.

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. 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.

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

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

    5. Read the DTCs.

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

    B

    CHECK HARNESS AND CONNECTOR (IGNITION COIL - BODY GROUND) Click here

    A

  2. CHECK WHETHER DTC OUTPUT RECURS (DTC P0351, P0352, P0353 OR P0354)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

    4. Clear the DTCs Click here.

    5. Shuffle the arrangement of the ignition coil assemblies (among the No. 1 to No. 4 cylinders).

      Note

      Do not shuffle the connectors.

    6. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    7. Check the DTCs output on the intelligent tester.

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

    B

    REPLACE IGNITION COIL ASSEMBLY

    A

  3. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)


    1. A003FDTE72
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Ignition Coil Assembly)

      Disconnect the ignition coil connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D20-1 (+B) - D20-4 (GND) Ignition switch ON 11 to 14 V
      D21-1 (+B) - D21-4 (GND) Ignition switch ON 11 to 14 V
      D22-1 (+B) - D22-4 (GND) Ignition switch ON 11 to 14 V
      D23-1 (+B) - D23-4 (GND) Ignition switch ON 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (IGNITION COIL - BODY GROUND) Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (IGNITION COIL - ECM)


    1. 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
      Tester Connection Condition Specified Condition
      D20-2 (IGF) - D97-82 (IGF1) Always Below 1 Ω
      D21-2 (IGF) - D97-82 (IGF1) Always Below 1 Ω
      D22-2 (IGF) - D97-82 (IGF1) Always Below 1 Ω
      D23-2 (IGF) - D97-82 (IGF1) Always Below 1 Ω
      D20-2 (IGF) or D97-82 (IGF1) - Body ground Always 10 kΩ or higher
      D21-2 (IGF) or D97-82 (IGF1) - Body ground Always 10 kΩ or higher
      D22-2 (IGF) or D97-82 (IGF1) - Body ground Always 10 kΩ or higher
      D23-2 (IGF) or D97-82 (IGF1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (IGNITION COIL - ECM)


    1. 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
      Tester Connection Condition Specified Condition
      D20-3 (IGT1) - D97-109 (IGT1) Always Below 1 Ω
      D21-3 (IGT2) - D97-108 (IGT2) Always Below 1 Ω
      D22-3 (IGT3) - D97-107 (IGT3) Always Below 1 Ω
      D23-3 (IGT4) - D97-106 (IGT4) Always Below 1 Ω
      D20-3 (IGT1) or D97-109 (IGT1) - Body ground Always 10 kΩ or higher
      D21-3 (IGT2) or D97-108 (IGT2) - Body ground Always 10 kΩ or higher
      D22-3 (IGT3) or D97-107 (IGT3) - Body ground Always 10 kΩ or higher
      D23-3 (IGT4) or D97-106 (IGT4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here

  6. CHECK HARNESS AND CONNECTOR (IGNITION COIL - BODY GROUND)


    1. Disconnect the ignition coil connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D20-4 (GND) - Body ground Always Below 1 Ω
      D21-4 (GND) - Body ground Always Below 1 Ω
      D22-4 (GND) - Body ground Always Below 1 Ω
      D23-4 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (IGNITION COIL - NO. 1 INTEGRATION RELAY)


    1. Disconnect the ignition coil assembly connectors.

    2. Remove the No. 1 integration relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D20-1 (+B) - 10B-4 Always Below 1 Ω
      D21-1 (+B) - 10B-4 Always Below 1 Ω
      D22-1 (+B) - 10B-4 Always Below 1 Ω
      D23-1 (+B) - 10B-4 Always Below 1 Ω
      D20-1 (+B) or 10B-4 - Body ground Always 10 kΩ or higher
      D21-1 (+B) or 10B-4 - Body ground Always 10 kΩ or higher
      D22-1 (+B) or 10B-4 - Body ground Always 10 kΩ or higher
      D23-1 (+B) or 10B-4 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT NO. 1 INTEGRATION RELAY (INJ)


    1. Inspect the No. 1 integration relay (INJ) Click here.


    NG

    REPLACE NO. 1 INTEGRATION RELAY

    OK

  9. CHECK NO. 1 INTEGRATION RELAY (POWER SOURCE)

    A003FKXE01
    Text in Illustration
    *a

    Front view of wire harness connector

    (to No. 1 Integration Relay)

    1. Remove the No. 1 integration relay from the No. 1 engine room relay block.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      10B-1 - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY - BATTERY)

    OK

  10. CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - BODY GROUND)


    1. Remove the No. 1 integration relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      10B-3 - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - NO. 2 INTEGRATION RELAY)


    1. Remove the No. 1 integration relay from the No. 1 engine room relay block.

    2. Remove the No. 2 integration relay from the instrument panel relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      12B-7 - 10B-2 Always Below 1 Ω
      12B-7 or 10B-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    CHECK ECM POWER SOURCE CIRCUIT Click here