DTC    P0351    Ignition Coil "A" Primary / Secondary Circuit

DTC    P0352    Ignition Coil "B" Primary / Secondary Circuit

DTC    P0353    Ignition Coil "C" Primary / Secondary Circuit

DTC    P0354    Ignition Coil "D" Primary / Secondary Circuit

DTC    P0355    Ignition Coil "E" Primary / Secondary Circuit

DTC    P0356    Ignition Coil "F" Primary / Secondary Circuit

DTC    P0357    Ignition Coil "G" Primary / Secondary Circuit

DTC    P0358    Ignition Coil "H" Primary / Secondary Circuit

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DESCRIPTION

A Direct Ignition System (DIS) is used on this vehicle.
The DIS is a 1-cylinder ignition system which ignites one cylinder with one ignition coil. In the 1-cylinder ignition system, the one spark plug is connected to the end of the secondary winding. High voltage generated in the secondary winding is applied directly to the spark plug. The spark of the spark plug passes from the center electrode to the ground electrode.
The ECM determines the ignition timing and outputs the ignition signals (IGTs) for each cylinder. Using the IGTs, the ECM turns the power transistor inside the igniter on/off, which switches on/off current to the primary coil. When current to the primary coil is cut off, high voltage is generated in the secondary coil and this voltage is applied to the spark plugs to create sparks inside the cylinders. As the ECM cuts current to the primary coil, the igniter sends back ignition confirmation signals (IGFs) for each cylinder ignition to the ECM.

A106053E04


DTC No.
DTC Detection Condition
Trouble Area
P0351
P0352
P0353
P0354
P0355
P0356
P0357
P0358
No IGF signal to ECM while engine is running
(1 trip detection logic)
  1. Ignition system
  2. Open or short in IGF or IGT circuit (ignition coil to ECM)
  3. Ignition coil with igniter (primary coil)
  4. ECM

  1. A093278E11
  2. Reference: Inspection using an oscilloscope.
  3. While cranking or idling the engine, check the waveform between terminals IGT1 to IGT8 and E1, and IGF1 to IGF2 and E1 of the E6, E8 and E6 ECM connectors.

MONITOR DESCRIPTION


A082388E06

If the ECM does not receive an IGF after sending an IGT, it interprets this as a fault in the igniter and sets a DTC. The monitor runs for 1 second (the first second of engine idle) after the engine is started.

WIRING DIAGRAM


A110020E01


A105231E03


A108300E02


INSPECTION PROCEDURE

HINT:
  1. Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, 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.
  2. These DTCs indicate a malfunction related to a primary circuit.
  3. If DTC P0351 is displayed, check No. 1 ignition coil with igniter circuit.
  4. If DTC P0352 is displayed, check No. 2 ignition coil with igniter circuit.
  5. If DTC P0353 is displayed, check No. 3 ignition coil with igniter circuit.
  6. If DTC P0354 is displayed, check No. 4 ignition coil with igniter circuit.
  7. If DTC P0355 is displayed, check No. 5 ignition coil with igniter circuit.
  8. If DTC P0356 is displayed, check No. 6 ignition coil with igniter circuit.
  9. If DTC P0357 is displayed, check No. 7 ignition coil with igniter circuit.
  10. If DTC P0358 is displayed, check No. 8 ignition coil with igniter circuit.

1.INSPECT SPARK PLUG
A088861E05

  1. Remove the engine cover.

  1. Remove the ignition coil and the spark plug of the misfiring cylinder.

  1. Check the electrode for carbon deposits.

  1. Measure the spark plug's electrode gap.

    Standard:
    Electrode gap: 1.0 to 1.3 mm (0.039 to 0.051 in.)

    Recommended spark plug:
    Manufacturer
    		Spark Plug Type
    DENSO
    		SK20R11
    NGK
    		IFR6A11

    NOTICE:
    If the electrode gap is larger than the standard, replace the spark plug. Do not adjust the electrode gap.



NG
REPLACE SPARK PLUG
OK


2.CHECK SPARK AND IGNITION
A088862E01

  1. Disconnect the injector connectors to prevent the engine from starting.

  1. Install the spark plug to the ignition coil.

  1. Attach the spark plug to the cylinder head cover.

  1. Crank the engine within 2 seconds and check the spark.

    OK:
    Spark occurs.



NG
Go to step 5
OK


3.CHECK WIRE HARNESS (IGNITION COIL - ECM)


    A103791E04

  1. Disconnect the E11, E14, E17, E20, E28, E30, E35 and E37 ignition coil connectors.

  1. Disconnect the E6 ECM connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    E11-2 (IGF1) - E6-7 (IGF1)
    		Below 1 Ω
    E37-2 (IGF2) - E6-6 (IGF2)
    		Below 1 Ω
    E14-2 (IGF2) - E6-6 (IGF2)
    		Below 1 Ω
    E35-2 (IGF1) - E6-7 (IGF1)
    		Below 1 Ω
    E17-2 (IGF2) - E6-6 (IGF2)
    		Below 1 Ω
    E30-2 (IGF1) - E6-7 (IGF1)
    		Below 1 Ω
    E20-2 (IGF1) - E6-7 (IGF1)
    		Below 1 Ω
    E28-2 (IGF2) - E6-6 (IGF2)
    		Below 1 Ω
    E11-2 (IGF1) or E6-7 (IGF1) - Body ground
    		10 kΩ or higher
    E37-2 (IGF2) or E6-6 (IGF2) - Body ground
    		10 kΩ or higher
    E14-2 (IGF2) or E6-6 (IGF2) - Body ground
    		10 kΩ or higher
    E35-2 (IGF1) or E6-7 (IGF1) - Body ground
    		10 kΩ or higher
    E17-2 (IGF2) or E6-6 (IGF2) - Body ground
    		10 kΩ or higher
    E30-2 (IGF1) or E6-7 (IGF1) - Body ground
    		10 kΩ or higher
    E20-2 (IGF1) or E6-7 (IGF1) - Body ground
    		10 kΩ or higher
    E28-2 (IGF2) or E6-6 (IGF2) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


4.CHECK ECM (IGF1, IGF2, VOLTAGE)
A053763E35

  1. Disconnect the E11, E14, E17, E20, E28, E30, E35 and E37 ignition coil connectors.

  1. Turn the engine switch on (IG).

  1. Measure the voltage of the ECM connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    E6-7 (IGF1) - E6-7 (E1)
    		4.5 to 5.5 V
    E6-6 (IGF2) - E6-7 (E1)
    		4.5 to 5.5 V



NG
REPLACE ECM
OK


5.CHECK WIRE HARNESS (IGNITION COIL - ECM)
A103792E04

  1. Disconnect the E11, E14, E17, E20, E28, E30, E35 and E37 ignition coil connectors.

  1. Disconnect the E6 and E8 ECM connectors.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    E11-3 (IGT1) - E8-17 (IGT1)
    		Below 1 Ω
    E37-3 (IGT2) - E6-13 (IGT2)
    		Below 1 Ω
    E14-3 (IGT3) - E8-16 (IGT3)
    		Below 1 Ω
    E35-3 (IGT4) - E6-12 (IGT4)
    		Below 1 Ω
    E17-3 (IGT5) - E8-27 (IGT5)
    		Below 1 Ω
    E30-3 (IGT6) - E6-11 (IGT6)
    		Below 1 Ω
    E20-3 (IGT7) - E8-26 (IGT7)
    		Below 1 Ω
    E28-3 (IGT8) - E6-10 (IGT8)
    		Below 1 Ω
    E11-3 (IGT1) or E8-17 (IGT1) - Body ground
    		10 kΩ or higher
    E37-3 (IGT2) or E6-13 (IGT2) - Body ground
    		10 kΩ or higher
    E14-3 (IGT3) or E8-16 (IGT3) - Body ground
    		10 kΩ or higher
    E35-3 (IGT4) or E6-12 (IGT4) - Body ground
    		10 kΩ or higher
    E17-3 (IGT5) or E8-27 (IGT5) - Body ground
    		10 kΩ or higher
    E30-3 (IGT6) or E6-11 (IGT6) - Body ground
    		10 kΩ or higher
    E20-3 (IGT7) or E8-26 (IGT7) - Body ground
    		10 kΩ or higher
    E28-3 (IGT8) or E6-10 (IGT8) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


6.CHECK ECM (IGT1, IGT2, IGT3, IGT4, IGT5, IGT6, IGT7, IGT8 VOLTAGE)
A053763E36

  1. Measure the voltage of the ECM connectors when the engine is cranked.

    Standard voltage:
    Tester Connection
    		Specified Condition
    E8-17 (IGT1) - E6-7 (E1)
    		0.1 to 4.5 V
    E6-13 (IGT2) - E6-7 (E1)
    		0.1 to 4.5 V
    E8-16 (IGT3) - E6-7 (E1)
    		0.1 to 4.5 V
    E6-12 (IGT4) - E6-7 (E1)
    		0.1 to 4.5 V
    E8-27 (IGT5) - E6-7 (E1)
    		0.1 to 4.5 V
    E6-11 (IGT6) - E6-7 (E1)
    		0.1 to 4.5 V
    E8-26 (IGT7) - E6-7 (E1)
    		0.1 to 4.5 V
    E6-10 (IGT8) - E6-7 (E1)
    		0.1 to 4.5 V



NG
REPLACE ECM
OK


7.CHECK IGNITION COIL (POWER SOURCE)
A054393E21

  1. Disconnect the E11, E14, E17, E20, E28, E30, E35 and E37 ignition coil connectors.

  1. Turn the engine switch from on (IG) to start.

  1. Measure the voltage of the wire harness side connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    E11-1 (+B) - Body ground
    		9 to 14 V
    E37-1 (+B) - Body ground
    		9 to 14 V
    E14-1 (+B) - Body ground
    		9 to 14 V
    E35-1 (+B) - Body ground
    		9 to 14 V
    E17-1 (+B) - Body ground
    		9 to 14 V
    E30-1 (+B) - Body ground
    		9 to 14 V
    E20-1 (+B) - Body ground
    		9 to 14 V
    E28-1 (+B) - Body ground
    		9 to 14 V



OK
REPLACE IGNITION COIL
NG


8.CHECK WIRE HARNESS (IGNITION COIL - IG2 RELAY)
A108304E03

  1. Inspect the IG2 fuse.

    1. Remove the IG2 fuse from the engine room No. 2 relay block.

    2. Measure the resistance of the IG2 fuse.

      Standard resistance:
      Below 1 Ω

  1. Disconnect the E11, E14, E17, E20, E28, E30, E35 and E37 ignition coil connectors.

  1. Remove the IG2 relay from the engine room No. 2 relay block.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    E11-1 (+B) - Relay block IG2 relay terminal 3
    		Below 1 Ω
    E37-1 (+B) - Relay block IG2 relay terminal 3
    		Below 1 Ω
    E14-1 (+B) - Relay block IG2 relay terminal 3
    		Below 1 Ω
    E35-1 (+B) - Relay block IG2 relay terminal 3
    		Below 1 Ω
    E17-1 (+B) - Relay block IG2 relay terminal 3
    		Below 1 Ω
    E30-1 (+B) - Relay block IG2 relay terminal 3
    		Below 1 Ω
    E20-1 (+B) - Relay block IG2 relay terminal 3
    		Below 1 Ω
    E28-1 (+B) - Relay block IG2 relay terminal 3
    		Below 1 Ω
    E11-1 (+B) or Relay block IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    E37-1 (+B) or Relay block IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    E14-1 (+B) or Relay block IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    E35-1 (+B) or Relay block IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    E17-1 (+B) or Relay block IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    E30-1 (+B) or Relay block IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    E20-1 (+B) or Relay block IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    E28-1 (+B) or Relay block IG2 relay terminal 3 - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE IGNITION COIL