SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P0351, P0352, P0353, P0354, P0355, P0356, P0357, P0358

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
P0357	Ignition Coil "G" Primary / Secondary Circuit
P0358	Ignition Coil "H" Primary / Secondary Circuit

DESCRIPTION

Tech Tips

These DTCs indicate malfunctions relating to the primary circuit.
If DTC P0351 is output, check the ignition coil assembly (No. 1 cylinder) circuit.
If DTC P0352 is output, check the ignition coil assembly (No. 2 cylinder) circuit.
If DTC P0353 is output, check the ignition coil assembly (No. 3 cylinder) circuit.
If DTC P0354 is output, check the ignition coil assembly (No. 4 cylinder) circuit.
If DTC P0355 is output, check the ignition coil assembly (No. 5 cylinder) circuit.
If DTC P0356 is output, check the ignition coil assembly (No. 6 cylinder) circuit.
If DTC P0357 is output, check the ignition coil assembly (No. 7 cylinder) circuit.
If DTC P0358 is output, check the ignition coil assembly (No. 8 cylinder) 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 assembly and one 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 spark of the spark plugs passes from the center electrode to the ground electrodes.

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 the current supplied to the primary coil on and off. 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.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P0351	Ignition Coil "A" Primary / Secondary Circuit	No IGF signal to ECM while the engine is running (1 trip detection logic).	Ignition system Open or short in IGF1 or IGT1 circuit between ignition coil assembly and ECM No. 1 ignition coil assembly IG2 relay ECM	Comes on	DTC stored
P0352	Ignition Coil "B" Primary / Secondary Circuit	No IGF signal to ECM while the engine is running (1 trip detection logic).	Ignition system Open or short in IGF2 or IGT2 circuit between ignition coil assembly and ECM No. 2 ignition coil assembly IG2 relay ECM	Comes on	DTC stored
P0353	Ignition Coil "C" Primary / Secondary Circuit	No IGF signal to ECM while the engine is running (1 trip detection logic).	Ignition system Open or short in IGF2 or IGT3 circuit between ignition coil assembly and ECM No. 3 ignition coil assembly IG2 relay ECM	Comes on	DTC stored
P0354	Ignition Coil "D" Primary / Secondary Circuit	No IGF signal to ECM while the engine is running (1 trip detection logic).	Ignition system Open or short in IGF1 or IGT4 circuit between ignition coil assembly and ECM No. 4 ignition coil assembly IG2 relay ECM	Comes on	DTC stored
P0355	Ignition Coil "E" Primary / Secondary Circuit	No IGF signal to ECM while the engine is running (1 trip detection logic).	Ignition system Open or short in IGF2 or IGT5 circuit between ignition coil assembly and ECM No. 5 ignition coil assembly IG2 relay ECM	Comes on	DTC stored
P0356	Ignition Coil "F" Primary / Secondary Circuit	No IGF signal to ECM while the engine is running (1 trip detection logic).	Ignition system Open or short in IGF1 or IGT6 circuit between ignition coil assembly and ECM No. 6 ignition coil assembly IG2 relay ECM	Comes on	DTC stored
P0357	Ignition Coil "G" Primary / Secondary Circuit	No IGF signal to ECM while the engine is running (1 trip detection logic).	Ignition system Open or short in IGF1 or IGT7 circuit between ignition coil assembly and ECM No. 7 ignition coil assembly IG2 relay ECM	Comes on	DTC stored
P0358	Ignition Coil "H" Primary / Secondary Circuit	No IGF signal to ECM while the engine is running (1 trip detection logic).	Ignition system Open or short in IGF2 or IGT8 circuit between ignition coil assembly and ECM No. 8 ignition coil assembly IG2 relay ECM	Comes on	DTC stored

*a 2 V/DIV.

*b 20 ms./DIV.

Reference: Inspection using an oscilloscope
Tech Tips
- While idling the engine, check the waveform between terminals IGT (1 to 8) and E1, and IGF1 (2) and E1 of the ECM connectors.
- The wavelength becomes shorter as the engine speed increases.

*a	2 V/DIV.
*b	20 ms./DIV.

ECM Terminal Name	CH1: IGT1, 4, 6 or 7 and E1 CH2: IGF1 and E1
ECM Terminal Name	CH1: IGT2, 3, 5 or 8 and E1 CH2: IGF2 and E1
Tester Range	2 V/DIV., 20 ms./DIV.
Condition	Idling with warm engine

MONITOR DESCRIPTION

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 (Cylinder 1 to 8)
Required Sensors/Components (Related)	Crankshaft position sensor
Frequency of Operation	Continuous

CONFIRMATION DRIVING PATTERN

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the engine switch off and wait for at least 30 seconds.
Turn the engine switch on (IG).
Turn the GTS on.
Start the engine.
Idle the engine for 10 seconds or more [A].
Enter the following menus: Powertrain / Engine / Trouble Codes [B].
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.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P0351, P0352, P0353, P0354, P0355, P0356, P0357 or P0358.

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 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

CAUTION / NOTICE / HINT

Note

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

CLEAR DTC

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Clear the DTCs.

Powertrain > Engine > Clear DTCs

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

Result

Proceed to
NEXT

READ OUTPUT DTCS (DTC P0351, P0352, P0353, P0354, P0355, P0356, P0357 AND P0358)

Shuffle the arrangement of the ignition coil assemblies (among No. 1 to No. 8 cylinders).

Note

Do not change the location of the connectors.
Perform a simulation test.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Powertrain > Engine > Trouble Codes

Read the DTCs.

Result

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

Tech Tips

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

Click here

REPLACE IGNITION COIL ASSEMBLY Click here

CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY)

*a	Front view of wire harness connector (to Ignition Coil Assembly)

Disconnect the ignition coil assembly connector.
Turn the engine switch on (IG).

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

Standard Voltage

Tester Connection	Switch Condition	Specified Condition
G49-1 (+B) - G49-4 (GND)	Engine switch on (IG)	11 to 14 V
G50-1 (+B) - G50-4 (GND)	Engine switch on (IG)	11 to 14 V
G51-1 (+B) - G51-4 (GND)	Engine switch on (IG)	11 to 14 V
G52-1 (+B) - G52-4 (GND)	Engine switch on (IG)	11 to 14 V
G53-1 (+B) - G53-4 (GND)	Engine switch on (IG)	11 to 14 V
G54-1 (+B) - G54-4 (GND)	Engine switch on (IG)	11 to 14 V
G55-1 (+B) - G55-4 (GND)	Engine switch on (IG)	11 to 14 V
G56-1 (+B) - G56-4 (GND)	Engine switch on (IG)	11 to 14 V

Result

Proceed to
OK
NG

CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - BODY GROUND) Click here

CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)

Disconnect the ignition coil assembly connector.
Disconnect the ECM connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
G49-3 (IGT1) - G42-60 (IGT1)	Always	Below 1 Ω
G50-3 (IGT2) - G42-30 (IGT2)	Always	Below 1 Ω
G51-3 (IGT3) - G42-59 (IGT3)	Always	Below 1 Ω
G52-3 (IGT4) - G42-29 (IGT4)	Always	Below 1 Ω
G53-3 (IGT5) - G42-58 (IGT5)	Always	Below 1 Ω
G54-3 (IGT6) - G42-28 (IGT6)	Always	Below 1 Ω
G55-3 (IGT7) - G42-57 (IGT7)	Always	Below 1 Ω
G56-3 (IGT8) - G42-27 (IGT8)	Always	Below 1 Ω
G49-2 (IGF1) - G42-26 (IGF1)	Always	Below 1 Ω
G50-2 (IGF2) - G42-25 (IGF2)	Always	Below 1 Ω
G51-2 (IGF2) - G42-25 (IGF2)	Always	Below 1 Ω
G52-2 (IGF1) - G42-26 (IGF1)	Always	Below 1 Ω
G53-2 (IGF2) - G42-25 (IGF2)	Always	Below 1 Ω
G54-2 (IGF1) - G42-26 (IGF1)	Always	Below 1 Ω
G55-2 (IGF1) - G42-26 (IGF1)	Always	Below 1 Ω
G56-2 (IGF2) - G42-25 (IGF2)	Always	Below 1 Ω
G49-3 (IGT1) or G42-60 (IGT1) - Body ground and other terminals	Always	10 kΩ or higher
G50-3 (IGT2) or G42-30 (IGT2) - Body ground and other terminals	Always	10 kΩ or higher
G51-3 (IGT3) or G42-59 (IGT3) - Body ground and other terminals	Always	10 kΩ or higher
G52-3 (IGT4) or G42-29 (IGT4) - Body ground and other terminals	Always	10 kΩ or higher
G53-3 (IGT5) or G42-58 (IGT5) - Body ground and other terminals	Always	10 kΩ or higher
G54-3 (IGT6) or G42-28 (IGT6) - Body ground and other terminals	Always	10 kΩ or higher
G55-3 (IGT7) or G42-57 (IGT7) - Body ground and other terminals	Always	10 kΩ or higher
G56-3 (IGT8) or G42-27 (IGT8) - Body ground and other terminals	Always	10 kΩ or higher
G49-2 (IGF1) or G42-26 (IGF1) - Body ground and other terminals	Always	10 kΩ or higher
G50-2 (IGF2) or G42-25 (IGF2) - Body ground and other terminals	Always	10 kΩ or higher
G51-2 (IGF2) or G42-25 (IGF2) - Body ground and other terminals	Always	10 kΩ or higher
G52-2 (IGF1) or G42-26 (IGF1) - Body ground and other terminals	Always	10 kΩ or higher
G53-2 (IGF2) or G42-25 (IGF2) - Body ground and other terminals	Always	10 kΩ or higher
G54-2 (IGF1) or G42-26 (IGF1) - Body ground and other terminals	Always	10 kΩ or higher
G55-2 (IGF1) or G42-26 (IGF1) - Body ground and other terminals	Always	10 kΩ or higher
G56-2 (IGF2) or G42-25 (IGF2) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPLACE ECM Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

Disconnect the ignition coil assembly connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
G49-4 (GND) - Body ground	Always	Below 1 Ω
G50-4 (GND) - Body ground	Always	Below 1 Ω
G51-4 (GND) - Body ground	Always	Below 1 Ω
G52-4 (GND) - Body ground	Always	Below 1 Ω
G53-4 (GND) - Body ground	Always	Below 1 Ω
G54-4 (GND) - Body ground	Always	Below 1 Ω
G55-4 (GND) - Body ground	Always	Below 1 Ω
G56-4 (GND) - Body ground	Always	Below 1 Ω

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

INSPECT IG2 RELAY

Inspect the IG2 relay.

Click here

Result

Proceed to
OK
NG

REPLACE IG2 RELAY

CHECK TERMINAL VOLTAGE (POWER SOURCE OF IG2 RELAY)

*A	for LHD	*B	for RHD
*1	No. 1 Engine Room Relay Block and Junction Block Assembly	*2	IG2 Relay

Remove the IG2 relay from the No. 1 engine room relay block and junction block assembly.

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

Standard Voltage

Tester Connection	Condition	Specified Condition
3 (IG2 relay holder) - Body ground	Always	11 to 14 V

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 NO. 2 RELAY - AUXILIARY BATTERY)

CHECK HARNESS AND CONNECTOR (IG2 RELAY - BODY GROUND)

Remove the IG2 relay from the No. 1 engine room relay block and junction block assembly.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
1 (IG2 relay holder) - Body ground	Always	Below 1 Ω

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK HARNESS AND CONNECTOR (IG2 RELAY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

Remove the IG2 relay from the No. 1 engine room relay block and junction block assembly.
Disconnect the certification ECU (smart key ECU assembly) connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
2 (IG2 relay holder) - P66-17 (IG1D)	Always	Below 1 Ω
2 (IG2 relay holder) or P66-17 (IG1D) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

GO TO ENTRY AND START SYSTEM (FOR START FUNCTION) Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR