SFI SYSTEM (w/o EGR 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.

A01NGVRE02
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 or IGT circuit (1 to 6) between ignition coil assembly and ECM

  • No. 1 to No. 6 ignition coil assemblies

  • ECM

WIRING DIAGRAM

A01NETFE02
A01NEKOE07

INSPECTION PROCEDURE

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. READ OUTPUT DTC


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the tester on.

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

    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

    INSPECT IGNITION COIL ASSEMBLY (GROUND CIRCUIT) Click here

    A

  2. PERFORM SIMULATION TEST


    1. Connect the intelligent tester to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Change the arrangement of the ignition coil assemblies.

      Note

      Do not change the location of the connectors.

    5. Perform a simulation test.

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

    B

    REPLACE IGNITION COIL ASSEMBLY Click here

    A

  3. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)


    1. A01NE9AE23
      Text in Illustration
      *1

      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 Switch Condition Specified Condition
      D29-1 (+B) - D29-4 (GND) Power switch on (IG) 11 to 14 V
      D30-1 (+B) - D30-4 (GND) Power switch on (IG) 11 to 14 V
      D31-1 (+B) - D31-4 (GND) Power switch on (IG) 11 to 14 V
      D32-1 (+B) - D32-4 (GND) Power switch on (IG) 11 to 14 V
      D33-1 (+B) - D33-4 (GND) Power switch on (IG) 11 to 14 V
      D34-1 (+B) - D34-4 (GND) Power switch on (IG) 11 to 14 V

    4. Reconnect the ignition coil assembly connectors.


    NG

    INSPECT IGNITION COIL ASSEMBLY (GROUND CIRCUIT) Click here

    OK

  4. 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 (Check for Open)
      Tester Connection Condition Specified Condition
      D29-3 (IGT1) - D1-138 (IGT1) Always Below 1 Ω
      D30-3 (IGT2) - D1-106 (IGT2) Always Below 1 Ω
      D31-3 (IGT3) - D1-139 (IGT3) Always Below 1 Ω
      D32-3 (IGT4) - D1-107 (IGT4) Always Below 1 Ω
      D33-3 (IGT5) - D1-105 (IGT5) Always Below 1 Ω
      D34-3 (IGT6) - D1-137 (IGT6) Always Below 1 Ω
      D29-2 (IGF) - D1-54 (IGF1) Always Below 1 Ω
      D30-2 (IGF) - D1-54 (IGF1) Always Below 1 Ω
      D31-2 (IGF) - D1-54 (IGF1) Always Below 1 Ω
      D32-2 (IGF) - D1-54 (IGF1) Always Below 1 Ω
      D33-2 (IGF) - D1-54 (IGF1) Always Below 1 Ω
      D34-2 (IGF) - D1-54 (IGF1) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      D29-3 (IGT1) or D1-138 (IGT1) - Body ground Always 10 kΩ or higher
      D30-3 (IGT2) or D1-106 (IGT2) - Body ground Always 10 kΩ or higher
      D31-3 (IGT3) or D1-139 (IGT3) - Body ground Always 10 kΩ or higher
      D32-3 (IGT4) or D1-107 (IGT4) - Body ground Always 10 kΩ or higher
      D33-3 (IGT5) or D1-105 (IGT5) - Body ground Always 10 kΩ or higher
      D34-3 (IGT6) or D1-137 (IGT6) - Body ground Always 10 kΩ or higher
      D29-2 (IGF) or D1-54 (IGF1) - Body ground Always 10 kΩ or higher
      D30-2 (IGF) or D1-54 (IGF1) - Body ground Always 10 kΩ or higher
      D31-2 (IGF) or D1-54 (IGF1) - Body ground Always 10 kΩ or higher
      D32-2 (IGF) or D1-54 (IGF1) - Body ground Always 10 kΩ or higher
      D33-2 (IGF) or D1-54 (IGF1) - Body ground Always 10 kΩ or higher
      D34-2 (IGF) or D1-54 (IGF1) - Body ground Always 10 kΩ or higher

    4. Reconnect the ignition coil assembly connectors.

    5. Reconnect the ECM connector.


    NG

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

    OK

    REPLACE ECM Click here

  5. INSPECT IGNITION COIL ASSEMBLY (GROUND CIRCUIT)


    1. 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
      D29-4 (GND) - Body ground Always Below 1 Ω
      D30-4 (GND) - Body ground Always Below 1 Ω
      D31-4 (GND) - Body ground Always Below 1 Ω
      D32-4 (GND) - Body ground Always Below 1 Ω
      D33-4 (GND) - Body ground Always Below 1 Ω
      D34-4 (GND) - Body ground Always Below 1 Ω

    3. Reconnect the ignition coil assembly connectors.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND)

    OK

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