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

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

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

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

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

The DIS is an ignition system in which each cylinder is ignited by it's own ignition coil assembly and spark plug. The secondary wiring of each ignition coil generates a powerful voltage which is applied directly to each spark plug. The spark passes from the center electrode of the spark plug to the ground electrode.

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.

B001N2PE06
DTC No. DTC Detection Conditions Trouble Areas

P0351

P0352

P0353

P0354

 No IGF signal to ECM while engine running (1 trip detection logic).

  • Ignition system

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

  • No. 1 to No. 4 ignition coil assemblies

  • ECM

MONITOR DESCRIPTION

B001MRRE08

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.

MONITOR STRATEGY

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

CONFIRMATION DRIVING PATTERN


  1. Connect the intelligent tester to the DLC3.

  2. Turn the power switch on (IG) and turn the tester on.

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

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

  5. Turn the power switch on (IG) and turn the tester on.

  6. Put the engine in inspection mode (maintenance mode) Click here.

  7. Start the engine.

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

  9. Enter the following menus: Powertrain / Engine and ECT / DTC [B].

  10. 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.

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

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

  13. Check the DTC judgment result.

    Tester 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 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

B001KF6E03
B001KMNE01

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Tech Tips

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.

PROCEDURE


  1. CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY)


    1. B001L5WE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Ignition Coil Assembly)

      Disconnect the ignition coil assembly connectors.

    2. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D22-1 (+B) - D22-4 (GND) Power switch on (IG) 11 to 14 V
      D21-1 (+B) - D21-4 (GND) Power switch on (IG) 11 to 14 V
      D20-1 (+B) - D20-4 (GND) Power switch on (IG) 11 to 14 V
      D19-1 (+B) - D19-4 (GND) Power switch on (IG) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL ASSEMBLY - IG2 RELAY)

    OK

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


    1. Disconnect the ignition coil assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D22-4 (GND) - Body ground Always Below 1 Ω
      D21-4 (GND) - Body ground Always Below 1 Ω
      D20-4 (GND) - Body ground Always Below 1 Ω
      D19-4 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the ignition coil assembly connectors.

    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
      D22-2 (IGF) - D27-23 (IGF1) Always Below 1 Ω
      D21-2 (IGF) - D27-23 (IGF1) Always Below 1 Ω
      D20-2 (IGF) - D27-23 (IGF1) Always Below 1 Ω
      D19-2 (IGF) - D27-23 (IGF1) Always Below 1 Ω
      D22-3 (IGT1) - D27-108 (IGT1) Always Below 1 Ω
      D21-3 (IGT2) - D27-107 (IGT2) Always Below 1 Ω
      D20-3 (IGT3) - D27-106 (IGT3) Always Below 1 Ω
      D19-3 (IGT4) - D27-105 (IGT4) Always Below 1 Ω
      D22-3 (IGT1) or D27-108 (IGT1) - Body ground Always 10 kΩ or higher
      D21-3 (IGT2) or D27-107 (IGT2) - Body ground Always 10 kΩ or higher
      D20-3 (IGT3) or D27-106 (IGT3) - Body ground Always 10 kΩ or higher
      D19-3 (IGT4) or D27-105 (IGT4) - Body ground Always 10 kΩ or higher
      D22-2 (IGF), D21-2 (IGF), D20-2 (IGF), D19-2 (IGF) or D27-23 (IGF1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the tester on.

    4. Clear the DTCs Click here.

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

      Note

      Do not shuffle the connectors.

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

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

    8. Read the DTCs.

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

    A

    REPLACE ECM Click here

    B

    REPLACE IGNITION COIL ASSEMBLY Click here