SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P0201, P0202, P0203, P0204, P0205, P0206, P062D

DTC Code	DTC Name
P0201	Injector Circuit / Open - (Cylinder 1)
P0202	Injector Circuit / Open - (Cylinder 2)
P0203	Injector Circuit / Open - (Cylinder 3)
P0204	Injector Circuit / Open - (Cylinder 4)
P0205	Injector Circuit / Open - (Cylinder 5)
P0206	Injector Circuit / Open - (Cylinder 6)
P062D	No. 1 Fuel Injector Driver Circuit Performance

DESCRIPTION

The D-4S system has two fuel injection methods. One is the in-cylinder direct injection method, which directly injects pressurized fuel into the combustion chamber. The other is the intake port injection method. The ECM determines which fuel injection method to use in accordance with the engine conditions. For the in-cylinder direct injection method, the injector driver (EDU) in the engine room operates the fuel injector assemblies (for direction injection) at high speeds. The EDU receives fuel injection request signals from the ECM and converts the signals to high voltage/high current injector operation signals to operate the fuel injector assemblies (for direction injection).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P0201	Injector Circuit / Open - (Cylinder 1)	Either of following condition is detected (1 trip detection logic): INJ1 signal (#1) is not input for 20 consecutive revolutions INJ1 signal (#4) is not input 20 times or more, and INJ1 signal (#1) is not input 15 times or more	Open or short in injector driver (EDU) circuit Injector driver (EDU) Fuel injector assembly (for direct injection) INJ relay Semiconductor pwr integration ECU ECM	Comes on	DTC stored
P0202	Injector Circuit / Open - (Cylinder 2)	Either of following condition is detected (1 trip detection logic): INJ2 signal (#2) is not input for 20 consecutive revolutions INJ2 signal (#5) is not input 20 times or more, and INJ2 signal (#2) is not input 15 times or more	Open or short in injector driver (EDU) circuit Injector driver (EDU) Fuel injector assembly (for direct injection) INJ relay Semiconductor pwr integration ECU ECM	Comes on	DTC stored
P0203	Injector Circuit / Open - (Cylinder 3)	Either of following condition is detected (1 trip detection logic): INJ3 signal (#3) is not input for 20 consecutive revolutions INJ3 signal (#6) is not input 20 times or more, and INJ3 signal (#3) is not input 15 times or more	Open or short in injector driver (EDU) circuit Injector driver (EDU) Fuel injector assembly (for direct injection) INJ relay Semiconductor pwr integration ECU ECM	Comes on	DTC stored
P0204	Injector Circuit / Open - (Cylinder 4)	Either of following condition is detected (1 trip detection logic): INJ1 signal (#4) is not input for 20 consecutive revolutions INJ1 signal (#1) is not input 20 times or more, and INJ1 signal (#4) is not input 15 times or more	Open or short in injector driver (EDU) circuit Injector driver (EDU) Fuel injector assembly (for direct injection) INJ relay Semiconductor pwr integration ECU ECM	Comes on	DTC stored
P0205	Injector Circuit / Open - (Cylinder 5)	Either of following condition is detected (1 trip detection logic): INJ2 signal (#5) is not input for 20 consecutive revolutions INJ2 signal (#2) is not input 20 times or more, and INJ2 signal (#5) is not input 15 times or more	Open or short in injector driver (EDU) circuit Injector driver (EDU) Fuel injector assembly (for direct injection) INJ relay Semiconductor pwr integration ECU ECM	Comes on	DTC stored
P0206	Injector Circuit / Open - (Cylinder 6)	Either of following condition is detected (1 trip detection logic): INJ3 signal (#6) is not input for 20 consecutive revolutions INJ3 signal (#3) is not input 20 times or more, and INJ3 signal (#6) is not input 15 times or more	Open or short in injector driver (EDU) circuit Injector driver (EDU) Fuel injector assembly (for direct injection) INJ relay Semiconductor pwr integration ECU ECM	Comes on	DTC stored
P062D	No. 1 Fuel Injector Driver Circuit Performance	INJ1, INJ2 and INJ3 signal is not input 60 times or more (1 trip detection logic)	Open or short in injector driver (EDU) circuit Injector driver (EDU) Fuel injector assembly (for direct injection) INJ relay Semiconductor pwr integration ECU ECM	Comes on	DTC stored

MONITOR DESCRIPTION

The fuel injection sequence occurs in numerical order from No. 1 to No. 6.

The ECM monitors the EDU at all times. If drivers or fuel injector assemblies are malfunctioning, the EDU sends fuel injector assembly operation condition signals (fail signals INJ1 to INJ3) to the ECM. When the ECM receives the signals, the ECM stops the fuel injection control of the appropriate cylinders, cuts voltage to the appropriate injector relay, and illuminates the MIL.

Definition of the Injector Driver Signal	-
Injector Driver Signal (INJ1)	#1 (No. 1 Fuel injector assembly) #4 (No. 4 Fuel injector assembly)
Injector Driver Signal (INJ2)	#2 (No. 2 Fuel injector assembly) #5 (No. 5 Fuel injector assembly)
Injector Driver Signal (INJ3)	#3 (No. 3 Fuel injector assembly) #6 (No. 6 Fuel injector assembly)

MONITOR STRATEGY

Required Sensors/Components	Injector for direct injection, injector driver (EDU)
Frequency of Operation	Continuous

CONFIRMATION DRIVING PATTERN

Connect the GTS to the DLC3.
Turn the engine switch on (IG) and 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) and turn the GTS on.
Start the engine.
Idle the engine for 15 seconds or more [A].
Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
Read pending DTCs [B].
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: P0201, P0202, P0203, P0204, P0205, P0206 or P062D.

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

If the current from the INJ relay is cut because DTC P062D is stored, DTC P1235 will be stored even if the fuel pump (for high pressure side) is normal.
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

CHECK DTC OUTPUT

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
DTC P0201, P0202, P0203, P0204, P0205 or P0206 is output	A
One of the following pairs of DTCs is output: P0201 and P0204, P0202 and P0205, or P0203 and P0206	B
DTC P062D is output	C

GO TO STEP 11 Click here

INSPECT INJ RELAY Click here

CHECK HARNESS AND CONNECTOR

Disconnect the injector driver (EDU) connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
K1-2 (IJ1+) - K1-5 (IJ1-)	20°C (68°F)	2.01 to 2.31 Ω
L1-3 (IJ2+) - L1-6 (IJ2-)	20°C (68°F)	2.01 to 2.31 Ω
K1-3 (IJ3+) - K1-6 (IJ3-)	20°C (68°F)	2.01 to 2.31 Ω
L1-1 (IJ4+) - L1-4 (IJ4-)	20°C (68°F)	2.01 to 2.31 Ω
K1-1 (IJ5+) - K1-4 (IJ5-)	20°C (68°F)	2.01 to 2.31 Ω
L1-2 (IJ6+) - L1-5 (IJ6-)	20°C (68°F)	2.01 to 2.31 Ω
K1-2 (IJ1+) - Body ground	Always	1 MΩ or higher
L1-3 (IJ2+) - Body ground	Always	1 MΩ or higher
K1-3 (IJ3+) - Body ground	Always	1 MΩ or higher
L1-1 (IJ4+) - Body ground	Always	1 MΩ or higher
K1-1 (IJ5+) - Body ground	Always	1 MΩ or higher
L1-2 (IJ6+) - Body ground	Always	1 MΩ or higher

Tech Tips

The standard values shown are fuel injector assembly (for direct injection) resistance values.

Result

Proceed to
OK
NG

INSPECT FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION (RESISTANCE)) Click here

CHECK HARNESS AND CONNECTOR (ECM - INJECTOR DRIVER (EDU))

Disconnect the ECM connector.
Disconnect the injector driver (EDU) connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
F4-20 (#1) - F34-3 (IJT1)	Always	Below 1 Ω
F4-10 (#2) - F34-2 (IJT2)	Always	Below 1 Ω
F4-9 (#3) - F34-1 (IJT3)	Always	Below 1 Ω
F4-19 (#4) - F34-12 (IJT4)	Always	Below 1 Ω
F4-8 (#5) - F34-11 (IJT5)	Always	Below 1 Ω
F4-18 (#6) - F34-10 (IJT6)	Always	Below 1 Ω
F4-20 (#1) or F34-3 (IJT1) - Body ground	Always	10 kΩ or higher
F4-10 (#2) or F34-2 (IJT2) - Body ground	Always	10 kΩ or higher
F4-9 (#3) or F34-1 (IJT3) - Body ground	Always	10 kΩ or higher
F4-19 (#4) or F34-12 (IJT4) - Body ground	Always	10 kΩ or higher
F4-8 (#5) or F34-11 (IJT5) - Body ground	Always	10 kΩ or higher
F4-18 (#6) or F34-10 (IJT6) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK ECM (#1, #2, #3, #4, #5 AND #6 VOLTAGE)

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

Click here

Powertrain > Engine > Clear DTCs

Tech Tips

If DTC P062D is stored, the current from the INJ relay is cut.
Turn the engine switch off and wait for at least 30 seconds.
Disconnect the F34 injector driver (EDU) connector.

Inspect the ECM using an oscilloscope.

Component with harness connected

(ECM)

While cranking the engine, check waveform the terminals of the ECM connector.

Standard
Signal waveform appears as shown in the illustration.

ECM Terminal Name

F4-20 (#1) - F4-1 (E1)

F4-10 (#2) - F4-1 (E1)

F4-9 (#3) - F4-1 (E1)

F4-19 (#4) - F4-1 (E1)

F4-8 (#5) - F4-1 (E1)

F4-18 (#6) - F4-1 (E1)

Tester Range

2 V/DIV., 20 ms./DIV.

Condition

Cranking

Result

Proceed to
OK
NG

REPLACE INJECTOR DRIVER (EDU) Click here

REPLACE ECM Click here

INSPECT FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION (RESISTANCE))

Check the resistance of the fuel injector assembly (for direct injection).

Click here

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (INJECTOR DRIVER (EDU) - FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION))

REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION) Click here

INSPECT INJ RELAY

Inspect the INJ relay.

Click here

Result

Proceed to
OK
NG

REPLACE INJ RELAY

CHECK HARNESS AND CONNECTOR (POWER SOURCE OF INJ RELAY)

Remove the INJ relay from the No. 2 engine room relay block and No. 2 junction block assembly.

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

Standard Voltage

Tester Connection	Condition	Specified Condition
5 (INJ relay) - Body ground	Always	11 to 14 V

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - INJ RELAY)

CHECK HARNESS AND CONNECTOR (INJ RELAY - INJECTOR DRIVER)

Remove the INJ relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Disconnect the injector driver (EDU) connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
3 (INJ relay) - F36-1 (+B)	Always	Below 1 Ω
3 (INJ relay) - F36-2 (+B2)	Always	Below 1 Ω
3 (INJ relay) or F36-1 (+B) - Body ground	Always	10 kΩ or higher
3 (INJ relay) or F36-2 (+B2) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK HARNESS AND CONNECTOR (POWER SOURCE OF INJ RELAY)

Remove the INJ relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Turn the engine switch on (G).

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

Standard Voltage

Tester Connection	Condition	Specified Condition
2 (INJ relay) - Body ground	Engine switch on (IG)	11 to 14 V

Result

Proceed to
OK
NG

CHECK HARNESS AND CONNECTOR (SEMICONDUCTOR PWR INTEGRATION ECU - INJ RELAY) Click here

CHECK HARNESS AND CONNECTOR (INJ RELAY - ECM)

Disconnect the ECM connector.
Remove the INJ relay from the No. 2 engine room relay block and No. 2 junction block assembly.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
1 (INJ relay) - A70-4 (IREL)	Always	Below 1 Ω
1 (INJ relay) or A70-4 (IREL) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK HARNESS AND CONNECTOR (ECM - INJECTOR DRIVER (EDU))

Disconnect the ECM connector.
Disconnect the injector driver (EDU) connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
F2-13 (INJ1) - F34-6 (INJ1)	Always	Below 1 Ω
F2-12 (INJ2) - F34-5 (INJ2)	Always	Below 1 Ω
F2-15 (INJ3) - F34-4 (INJ3)	Always	Below 1 Ω
F2-13 (INJ1) or F34-6 (INJ1) - Body ground	Always	10 kΩ or higher
F2-12 (INJ2) or F34-5 (INJ2) - Body ground	Always	10 kΩ or higher
F2-15 (INJ3) or F34-4 (INJ3) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK TERMINAL VOLTAGE (ECM OUTPUT VOLTAGE)

*a
Component with harness connected

(ECM)

Disconnect the F34 injector driver (EDU) connector.
Turn the engine switch on (IG).

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

Standard Voltage

Tester Connection	Condition	Specified Condition
F2-13 (INJ1) - F4-1 (E1)	Engine switch on (IG)	4.5 to 5.5 V
F2-12 (INJ2) - F4-1 (E1)	Engine switch on (IG)	4.5 to 5.5 V
F2-15 (INJ3) - F4-1 (E1)	Engine switch on (IG)	4.5 to 5.5 V

Result

Proceed to
OK
NG

REPLACE INJECTOR DRIVER (EDU) Click here

REPLACE ECM Click here

CHECK HARNESS AND CONNECTOR (SEMICONDUCTOR PWR INTEGRATION ECU - INJ RELAY)

Remove the INJ relay from the No. 2 engine room relay block and No. 2 junction block assembly.
Disconnect the semiconductor pwr integration ECU connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
2G-1 - 2 (INJ relay)	Always	Below 1 Ω
2G-1 or 2 (INJ relay) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPLACE SEMICONDUCTOR POWER INTEGRATION ECU Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR