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 set, check the No. 1 ignition coil assembly circuit.

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

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

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

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

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

A direct ignition system is used on this vehicle.

The direct ignition system is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil assembly and a 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. Spark of the spark plugs passes from the center electrode to the ground electrodes.

The ECM determines the ignition timing and transmits the ignition signals (IGT) 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 signal (IGF) to the ECM, for each cylinder ignition.

A01FFLKE01
DTC No. DTC Detection Condition Trouble Area

P0351

P0352

P0353

P0354

P0355

P0356

No IGF signal to ECM while engine running

(1 trip detection logic)


  • Ignition system

  • Open or short in IGF1, IGF2 or IGT circuit (1 to 6) between ignition coil assembly and ECM

  • No. 1 to No. 6 ignition coil assemblies

  • ECM


MONITOR DESCRIPTION

A01FIG1E01

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

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

MONITOR STRATEGY

Required Sensors/Components (Main) Igniter (Cylinder 1 to 6)
Required Sensors/Components (Related) Crankshaft position sensor
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

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

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

  5. Turn the engine switch on (IG) and turn the GTS on.

  6. Start the engine.

  7. Idle the engine for 10 seconds or more [A].

  8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending.

  9. Read Pending DTCs [B].

    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, P0354, P0355 or P0356.

  12. Check the DTC judgment result.

    GTS Display Description
    NORMAL
    • DTC judgment completed

    • System normal

    ABNORMAL
    • DTC judgment completed

    • System abnormal

    INCOMPLETE
    • DTC judgment not 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's 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 steps [A] and [B] again.

WIRING DIAGRAM

A01FI5CE06

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using the GTS 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. READ OUTPUT DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. Read the DTCs.

      Result
      Result Proceed to
      One of DTCs P0351, P0352, P0353, P0354, P0355, P0356 is output A
      Some of DTCs P0351, P0352, P0353, P0354, P0355, P0356 are output B

    B
    A
  2. PERFORM SIMULATION TEST


    1. Clear the DTCs Click here.

    2. Change the arrangement of the ignition coil assemblies.

      Note

      Do not change the location of the connectors.

    3. Perform a simulation test.

      Result
      Result Proceed to
      Same DTCs are output (same as DTCs that were cleared) A
      Other DTCs are output B

      Tech Tips

      Perform "Inspection After Repair" after replacing the ignition coil assembly Click here.


    B
    A
  3. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)


    1. A01FH4QE75
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Ignition Coil Assembly)

      Disconnect the ignition coil assembly connectors.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F32-1 (+B) - F32-4 (GND) Engine switch on (IG) 11 to 14 V
      F6-1 (+B) - F6-4 (GND) Engine switch on (IG) 11 to 14 V
      F33-1 (+B) - F33-4 (GND) Engine switch on (IG) 11 to 14 V
      F7-1 (+B) - F7-4 (GND) Engine switch on (IG) 11 to 14 V
      F34-1 (+B) - F34-4 (GND) Engine switch on (IG) 11 to 14 V
      F9-1 (+B) - F9-4 (GND) Engine switch on (IG) 11 to 14 V
    4. Reconnect the ignition coil assembly connectors.


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


    1. Disconnect the ignition coil assembly connectors.

    2. Disconnect the ECM connectors.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      F32-3 (IGT1) - F3-27 (IGT1) Always Below 1 Ω
      F6-3 (IGT2) - F2-23 (IGT2) Always Below 1 Ω
      F33-3 (IGT3) - F3-26 (IGT3) Always Below 1 Ω
      F7-3 (IGT4) - F2-22 (IGT4) Always Below 1 Ω
      F34-3 (IGT5) - F3-25 (IGT5) Always Below 1 Ω
      F9-3 (IGT6) - F2-21 (IGT6) Always Below 1 Ω
      F32-2 (IGF1) - F3-32 (IGF1) Always Below 1 Ω
      F6-2 (IGF2) - F2-28 (IGF2) Always Below 1 Ω
      F33-2 (IGF1) - F3-32 (IGF1) Always Below 1 Ω
      F7-2 (IGF2) - F2-28 (IGF2) Always Below 1 Ω
      F34-2 (IGF1) - F3-32 (IGF1) Always Below 1 Ω
      F9-2 (IGF2) - F2-28 (IGF2) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      F32-3 (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
      F33-3 (IGT3) or F3-26 (IGT3) - Body ground Always 10 kΩ or higher
      F7-3 (IGT4) or F2-22 (IGT4) - Body ground Always 10 kΩ or higher
      F34-3 (IGT5) or F3-25 (IGT5) - Body ground Always 10 kΩ or higher
      F9-3 (IGT6) or F2-21 (IGT6) - Body ground Always 10 kΩ or higher
      F32-2 (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
      F33-2 (IGF1) or F3-32 (IGF1) - Body ground Always 10 kΩ or higher
      F7-2 (IGF2) or F2-28 (IGF2) - Body ground Always 10 kΩ or higher
      F34-2 (IGF1) or F3-32 (IGF1) - Body ground Always 10 kΩ or higher
      F9-2 (IGF2) or F2-28 (IGF2) - Body ground Always 10 kΩ or higher
    4. Reconnect the ignition coil assembly connectors.

    5. Reconnect the ECM connectors.


    NG
    OK
  5. INSPECT IGNITION COIL ASSEMBLY (GROUND CIRCUIT)


    1. A01FH4QE76
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Ignition Coil Assembly)

      Disconnect the ignition coil assembly connectors.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      F32-4 (GND) - Body ground Always Below 1 Ω
      F6-4 (GND) - Body ground Always Below 1 Ω
      F33-4 (GND) - Body ground Always Below 1 Ω
      F7-4 (GND) - Body ground Always Below 1 Ω
      F34-4 (GND) - Body ground Always Below 1 Ω
      F9-4 (GND) - Body ground Always Below 1 Ω
    3. Reconnect the ignition coil assembly connectors.


    NG
    OK