СИСТЕМА SFI, Diagnostic DTC:P0351, P0352, P0353

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

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. 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 off the current to the primary coil, the igniter sends back an ignition confirmation (IGF) signal to the ECM, for each cylinder ignition.

A01174AE01
DTC No. DTC Detection Condition Trouble Area

P0351

P0352

P0353

No IGF signal to ECM while engine running

(1-trip detection logic)

  • Ignition system

  • Open or short in IGF1 or IGT (1 to 3) circuit

  • No. 1 to No. 3 ignition coils

  • ECM

WIRING DIAGRAM

A011AP2E02

INSPECTION PROCEDURE

Tech Tips


  • 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.

  • Read freeze frame data using an 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.

PROCEDURE


  1. PERFORM SIMULATION TEST (SHUFFLE ARRANGEMENT OF IGNITION COILS)


    1. Connect an 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 / Clear.

    5. Clear DTCs.

    6. Shuffle arrangement of the ignition coils (among No. 1 to No. 3 cylinders).

      Note

      Do not shuffle the connectors.

    7. Perform a simulation test.

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

    9. Read DTCs.

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

    B

    REPLACE IGNITION COIL Click here

    A

  2. CHECK IGNITION COIL (POWER SOURCE)


    1. A01172FE01
      Text in Illustration
      *1

      Front view of wire harness connector:

      (to Ignition Coil)

      Disconnect the ignition coil connectors.

    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
      C4-1 (+B) - C4-4 (GND) Ignition switch ON 11 to 14 V
      C5-1 (+B) - C5-4 (GND) Ignition switch ON 11 to 14 V
      C6-1 (+B) - C6-4 (GND) Ignition switch ON 11 to 14 V

    4. Reconnect the ignition coil connectors.


    NG

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

    OK

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


    1. A011B04E25
      Text in Illustration
      *1

      Front view of wire harness connector:

      (to Ignition Coil)
      *2

      Front view of wire harness connector:

      (to ECM)

      Disconnect the ignition coil connectors.

    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
      C4-2 (IGF) - B8-82 (IGF1) Always Below 1 Ω
      C5-2 (IGF) - B8-82 (IGF1) Always Below 1 Ω
      C6-2 (IGF) - B8-82 (IGF1) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      C4-2 (IGF) or B8-82 (IGF1) - Body ground Always 10 kΩ or higher
      C5-2 (IGF) or B8-82 (IGF1) - Body ground Always 10 kΩ or higher
      C6-2 (IGF) or B8-82 (IGF1) - Body ground Always 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reconnect the ignition coil connectors.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A011B04E26
      Text in Illustration
      *1

      Front view of wire harness connector:

      (to Ignition Coil)
      *2

      Front view of wire harness connector:

      (to ECM)

      Disconnect the ignition coil connectors.

    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
      C4-3 (IGT) - B8-109 (IGT1) Always Below 1 Ω
      C5-3 (IGT2) - B8-108 (IGT2) Always Below 1 Ω
      C6-3 (IGT3) - B8-107 (IGT3) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      C4-3 (IGT) or B8-109 (IGT1) - Body ground Always 10 kΩ or higher
      C5-3 (IGT2) or B8-108 (IGT2) - Body ground Always 10 kΩ or higher
      C6-3 (IGT3) or B8-107 (IGT3) - Body ground Always 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reconnect the ignition coil connectors.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here

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


    1. A01172FE03
      Text in Illustration
      *1

      Front view of wire harness connector:

      (to Ignition Coil)

      Disconnect the ignition coil connectors.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      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

    3. Reconnect the ignition coil connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (IGNITION COIL - INTEGRATION RELAY)


    1. A011ASFE01
      Text in Illustration
      *1

      Front view of wire harness connector:

      (to Ignition Coil)
      *2

      Front view of wire harness connector:

      (to Integration Relay)

      Disconnect the ignition coil connectors.

    2. Remove the integration relay (IG2 relay) from the engine room relay block.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      C4-1 (+B) - 1E-4 Always Below 1 Ω
      C5-1 (+B) - 1E-4 Always Below 1 Ω
      C6-1 (+B) - 1E-4 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      C4-1 (+B) or 1E-4 - Body ground Always 10 kΩ or higher
      C5-1 (+B) or 1E-4 - Body ground Always 10 kΩ or higher
      C6-1 (+B) or 1E-4 - Body ground Always 10 kΩ or higher

    4. Reinstall the integration relay.

    5. Reconnect the ignition coil connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPAIR OR REPLACE ECM POWER SOURCE CIRCUIT Click here