Diagnostic trouble code P0351 P0352 P0353 P0354 P0355 P0356 4GR-FSE Engine

Description

Wiring diagram

Inspection procedure

PERFORM SIMULATION TEST

INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)

CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM (IGT SIGNAL TERMINAL))

CHECK ECM (IGT1, IGT2, IGT3, IGT4, IGT5, IGT6, IGF1, IGF2 SIGNAL)

CHECK IF DTC OUTPUT RECURS

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

Description

HINT:

  1. These DTCs indicate malfunctions relating to the primary circuit.
  2. IF DTC P0351 is set, check No. 1 ignition coil circuit.
  3. IF DTC P0352 is set, check No. 2 ignition coil circuit.
  4. IF DTC P0353 is set, check No. 3 ignition coil circuit.
  5. IF DTC P0354 is set, check No. 4 ignition coil circuit.
  6. IF DTC P0355 is set, check No. 5 ignition coil circuit.
  7. IF DTC P0356 is set, check No. 6 ignition coil circuit.

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 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 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.

Diagnostic trouble code P0351 P0352 P0353 P0354 P0355 P0356 4GR-FSE Engine.

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)
  1. Ignition system
  2. Open or short in IGF1, IGF2 or IGT circuit (1 to 6) between ignition coil and ECM
  3. No. 1 to No. 6 ignition coils
  4. ECM

Diagnostic trouble code P0351 P0352 P0353 P0354 P0355 P0356 4GR-FSE Engine. Inspection using an oscilloscope.

  1. Inspection using an oscilloscope.
  2. While cranking or idling the engine, check the waveform between terminals IGT (1 to 6) and E1, and IGF1, IGF2 and E1 of the ECM connector.
Item Content
Terminals CH1: IGT1, IGT2, IGT3, IGT4, IGT5, IGT6 - E1
CH2: IGF1, IGF2 - E1
Equipment Settings 2 V/DIV.
20 ms./DIV.
Conditions Cranking or idling

Wiring diagram

Diagnostic trouble code P0351 P0352 P0353 P0354 P0355 P0356 4GR-FSE Engine. Wiring diagram

Diagnostic trouble code P0351 P0352 P0353 P0354 P0355 P0356 4GR-FSE Engine. Wiring diagram 2

Inspection procedure

HINT:

Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are 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 .

 

1.PERFORM SIMULATION TEST

  1. Clear the DTC(s) .

  1. Change the arrangement of the ignition coils (with igniters).

    NOTICE:

    Do not change the location of the connectors.

  1. Reform a simulation test.

    Result:

    Display (DTC Output) Proceed to
    Same DTCs (that have been erased) A
    Other DTCs B
  B  
REPLACE IGNITION COIL ASSEMBLY
 
A  
   

2.INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)

Diagnostic trouble code P0351 P0352 P0353 P0354 P0355 P0356 4GR-FSE Engine. Disconnect the E22, E32, E23, Z1, E24 or Z2 ignition coil connector.

  1. Disconnect the E22, E32, E23, Z1, E24 or Z2 ignition coil connector.

  1. Turn the engine switch on (IG).

  1. Measure the voltage of the wire harness side connector and body ground.

Standard voltage:

Tester Connection Specified Condition
E22-1 - Body ground 9 to 14 V
E32-1 - Body ground 9 to 14 V
E23-1 - Body ground 9 to 14 V
Z1-1 - Body ground 9 to 14 V
E24-1 - Body ground 9 to 14 V
Z2-1 - Body ground 9 to 14 V

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

Standard resistance:

Tester Connection Specified Condition
E22-4 - Body ground Below 1 ?
E32-4 - Body ground Below 1 ?
E23-4 - Body ground Below 1 ?
Z1-4 - Body ground Below 1 ?
E24-4 - Body ground Below 1 ?
Z2-4 - Body ground Below 1 ?
  NG  
REPAIR OR REPLACE HARNESS OR CONNECTOR
 
OK  
   

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

Diagnostic trouble code P0351 P0352 P0353 P0354 P0355 P0356 4GR-FSE Engine. Disconnect the E22, E32, E23, Z1, E24 or Z2 ignition coil connector.

  1. Disconnect the E22, E32, E23, Z1, E24 or Z2 ignition coil connector.

  1. Disconnect the ECM E5 and E3 connectors.

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

Standard resistance (Check for open):

Tester Connection Specified Condition
IGT1 (E22-3) - IGT1 (E5-13) Below 1 ?
IGT2 (E32-3) - IGT2 (E3-17) Below 1 ?
IGT3 (E23-3) - IGT3 (E5-10) Below 1 ?
IGT4 (Z1-3) - IGT4 (E5-12) Below 1 ?
IGT5 (E24-3) - IGT5 (E3-27) Below 1 ?
IGT6 (Z2-3) - IGT6 (E3-26) Below 1 ?

Standard resistance (Check for short):

Tester Connection Specified Condition
IGT1 (E22-3) or IGT1 (E5-13) - Body ground 10 k? or higher
IGT2 (E32-3) or IGT2 (E3-17) - Body ground 10 k? or higher
IGT3 (E23-3) or IGT3 (E5-10) - Body ground 10 k? or higher
IGT4 (Z1-3) or IGT4 (E5-12) - Body ground 10 k? or higher
IGT5 (E24-3) or IGT5 (E3-27) - Body ground 10 k? or higher
IGT6 (Z2-3) or IGT6 (E3-26) - Body ground 10 k? or higher

Standard resistance (Check for open):

Tester Connection Specified Condition
IGF1 (E22-2) - IGF1 (E5-7) Below 1 ?
IGF2 (E32-2) - IGF2 (E5-6) Below 1 ?
IGF3 (E23-2) - IGF1 (E5-7) Below 1 ?
IGF4 (Z1-2) - IGF2 (E5-6) Below 1 ?
IGF5 (E24-2) - IGF1 (E5-7) Below 1 ?
IGF6 (Z2-2) - IGF2 (E5-6) Below 1 ?

Standard resistance (Check for short):

Tester Connection Specified Condition
IGF1 (E22-2) or IGF1 (E5-7) - Body ground 10 k? or higher
IGF2 (E32-2) or IGF2 (E5-6) - Body ground 10 k? or higher
IGF3 (E23-2) or IGF1 (E5-7)- Body ground 10 k? or higher
IGF4 (Z1-2) or IGF2 (E5-6) - Body ground 10 k? or higher
IGF5 (E24-2) or IGF1 (E5-7) - Body ground 10 k? or higher
IGF6 (Z2-2) or IGF2 (E5-6) - Body ground 10 k? or higher
  NG  
REPAIR OR REPLACE HARNESS OR CONNECTOR
 
OK  
   

4.CHECK ECM (IGT1, IGT2, IGT3, IGT4, IGT5, IGT6, IGF1, IGF2 SIGNAL)

Diagnostic trouble code P0351 P0352 P0353 P0354 P0355 P0356 4GR-FSE Engine. Inspect the ECM using an oscilloscope.

  1. Inspect the ECM using an oscilloscope.

  1. While cranking or idling, check the waveform of the ECM connectors.

Standard:

Tester Connection Specified Condition
IGF1 (E5-7) - E1 (E4-7)
IGF2 (E5-6) - E1 (E4-7)
IGT1 (E5-13) - E1 (E4-7)
IGT2 (E3-17) - E1 (E4-7)
IGT3 (E5-10) - E1 (E4-7)
IGT4 (E5-12) - E1 (E4-7)
IGT5 (E3-27) - E1 (E4-7)
IGT6 (E3-26) - E1 (E4-7)		 Correct waveform is shown
  NG  
REPLACE ECM
 
OK  
   

5.CHECK IF DTC OUTPUT RECURS

  1. Clear the DTC .

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG) and turn the intelligent tester ON.

  1. Enter the following menus: Power train / Engine / DTC.

  1. Read DTC.

Result:

Display (DTC Output) Proceed to
P0351, P0352, P0353, P0354, P0355 and/or P0356 are output A
No output B
  B  
SYSTEM IS OK
 
A  
   
REPLACE ECM