NR Series ENGINE CONTROL SFI SYSTEM P020113 Cylinder 1 Injector "A" Circuit Open P020213 Cylinder 2 Injector "A" Circuit Open P020313 Cylinder 3 Injector "A" Circuit Open P020413 Cylinder 4 Injector "A" Circuit Open P062D13 Fuel Injector Driver Circuit Performance Bank 1 Circuit Open
DESCRIPTION
The D-4 system is a direct injection fuel system which injects highly pressurized fuel directly into the combustion chamber. An injector driver (EDU), which is built into the ECM, is used to operate the fuel injector assemblies at high speed. The EDU receives injection request signals from the ECM and converts them to high voltage/high current injector operation signals to operate the fuel injector assemblies.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P020113 | Cylinder 1 Injector "A" Circuit Open | Either of following conditions is met (1 trip detection logic):
·
Short to +B in No. 1 fuel injector assembly circuit for 40 times or more. ·
Open or short to ground in No. 1 fuel injector assembly circuit for 20 times or more. |
·
Open or short in fuel injector assembly circuit ·
Fuel injector assembly ·
IGN/INJ/D INJ relay ·
ECM |
Comes on | DTC stored | SAE Code:
P0201 |
| P020213 | Cylinder 2 Injector "A" Circuit Open | Either of following conditions is met (1 trip detection logic):
·
Short to +B in No. 2 fuel injector assembly circuit for 40 times or more. ·
Open or short to ground in No. 2 fuel injector assembly circuit for 20 times or more. |
·
Open or short in fuel injector assembly circuit ·
Fuel injector assembly ·
IGN/INJ/D INJ relay ·
ECM |
Comes on | DTC stored | SAE Code:
P0202 |
| P020313 | Cylinder 3 Injector "A" Circuit Open | Either of following conditions is met (1 trip detection logic):
·
Short to +B in No. 3 fuel injector assembly circuit for 40 times or more. ·
Open or short to ground in No. 3 fuel injector assembly circuit for 20 times or more. |
·
Open or short in fuel injector assembly circuit ·
Fuel injector assembly ·
IGN/INJ/D INJ relay ·
ECM |
Comes on | DTC stored | SAE Code:
P0203 |
| P020413 | Cylinder 4 Injector "A" Circuit Open | Either of following conditions is met (1 trip detection logic):
·
Short to +B in No. 4 fuel injector assembly circuit for 40 times or more. ·
Open or short to ground in No. 4 fuel injector assembly circuit for 20 times or more. |
·
Open or short in fuel injector assembly circuit ·
Fuel injector assembly ·
IGN/INJ/D INJ relay ·
ECM |
Comes on | DTC stored | SAE Code:
P0204 |
| P062D13 | Fuel Injector Driver Circuit Performance Bank 1 Circuit Open | Open or short in all fuel injector assembly circuits for 60 times or more (1 trip detection logic). | ·
Open or short in fuel injector assembly circuit ·
Fuel injector assembly ·
IGN/INJ/D INJ relay ·
ECM |
Comes on | DTC stored | SAE Code:
P062D |
MONITOR DESCRIPTION
The fuel injection sequence occurs in numerical order from No. 1 to No. 4.
The ECM monitors the Injector Driver (EDU) at all times. If a driver or fuel injector assembly is malfunctioning, the EDU sends a fuel injector assembly operation condition signal (fail signal) to the ECM. When the ECM receives this signal, it stops the fuel injection control of the appropriate cylinder, cuts voltage to the appropriate IGN/INJ/D INJ relay, and illuminates the MIL.
MONITOR STRATEGY
| Required Sensors/Components | Fuel injector assembly
ECM (injector driver) |
| Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
- HINT:
- ·
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
·When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Start the engine and warm it up [A].
Turn the GTS on.
Idle the engine for 15 seconds or more [B].
Enter the following menus: Powertrain / Engine / Trouble Codes [C].
Read the DTCs.
- HINT:
- ·
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: P020113, P020213, P020313, P020413 or P062D13.
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 |
- HINT:
- ·
If the judgment result shows NORMAL, the system is normal.
·If the judgment result shows ABNORMAL, the system has a malfunction.
·[A] to [C]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
·When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
-
Inspect the fuses for circuits related to this system before performing the following procedure.
- HINT:
- ·
If the current from the IGN/INJ/D INJ relay is cut because DTC P062D13 is stored, DTC P123513 will be stored even if the fuel pump assembly (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
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
- Powertrain > Engine > Trouble Codes
- 50001 372
- Result:
Result Proceed to DTC P020113, P020213, P020313 or P020413 is output A 3 or more of the following DTCs are output: P020113, P020213, P020313 and P020413 B P062D13 is output
A
B
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C78-26 (#1D+) - C78-27 (#1D-) 20°C (68°F) 1.74 to 2.04 Ω C78-21 (#2D+) - C78-20 (#2D-) 20°C (68°F) 1.74 to 2.04 Ω C78-22 (#3D+) - C78-23 (#3D-) 20°C (68°F) 1.74 to 2.04 Ω C78-25 (#4D+) - C78-24 (#4D-) 20°C (68°F) 1.74 to 2.04 Ω C78-26 (#1D+) or C78-27 (#1D-) - Body ground and other terminals Always 1 MΩ or higher C78-21 (#2D+) or C78-20 (#2D-) - Body ground and other terminals Always 1 MΩ or higher C78-22 (#3D+) or C78-23 (#3D-) - Body ground and other terminals Always 1 MΩ or higher C78-25 (#4D+) or C78-24 (#4D-) - Body ground and other terminals Always 1 MΩ or higher
- HINT:
-
The standard values shown are fuel injector assembly resistance values.
- Result:
Proceed to OK NG
OK
NG
Check the resistance of the fuel injector assembly.
- HINT:
-
Perform "Inspection After Repair" after replacing the fuel injector assembly.
- Result:
Proceed to OK NG
OK
NG
Inspect the IGN/INJ/D INJ relay.
- Result:
Proceed to OK NG
OK
NG
| *1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly |
| *2 | IGN/INJ/D INJ Relay |
Remove the IGN/INJ/D INJ relay from the No. 1 engine room relay block and No. 1 junction block assembly.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition 3 (IGN/INJ/D INJ relay) - Body ground Always 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
Remove the IGN/INJ/D INJ relay from the No. 1 engine room relay block and No. 1 junction block assembly.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 5 (IGN/INJ/D INJ relay) - C78-30 (+BD1) Always Below 1 Ω 5 (IGN/INJ/D INJ relay) - C78-60 (+BD2) Always Below 1 Ω 2 (IGN/INJ/D INJ relay) - A46-8 (IREL) Always Below 1 Ω 5 (IGN/INJ/D INJ relay) or C78-30 (+BD1) - Body ground and other terminals Always 10 kΩ or higher 5 (IGN/INJ/D INJ relay) or C78-60 (+BD2) - Body ground and other terminals Always 10 kΩ or higher 2 (IGN/INJ/D INJ relay) or A46-8 (IREL) - Body ground and other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Remove the No. 1 integration relay, IGN/INJ/D INJ relay and EFI-MAIN NO. 2 relay from the No. 1 engine room relay block and No. 1 junction block assembly.
- HINT:
-
Remove the EFI-MAIN NO. 2 relay connected between the checked terminals as the coil inside the relay influences the measurement value.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 1B-4 - 1 (IGN/INJ/D INJ relay) Always Below 1 Ω 1B-4 or 1 (IGN/INJ/D INJ relay) - Body ground and other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG