M20F-FXS, M20G-FXS 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-4S system has two fuel injection systems. One is an in-cylinder direct injection system that directly injects pressurized fuel into the combustion chamber. The other is an intake port injection system. The ECM determines which fuel injection system to use in accordance with the engine conditions. The direct injection system uses an injector driver (EDU) built into the ECM to rapidly operate the direct fuel injector assemblies. It converts injection request signals from the ECM to high-voltage and high-current injector-drive signals that drive the direct fuel injector assemblies.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
|---|---|---|---|---|---|
| P020113 | Cylinder 1 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
·
Short to +B in direct fuel injector assembly (No. 1 cylinder) circuit for 40 times or more. ·
Open or short to ground in direct fuel injector assembly (No. 1 cylinder) circuit for 20 times or more. ·
Direct fuel injector assembly (No. 1 cylinder) circuit current reaches the high limit for 20 times or more. |
·
Open or short in direct fuel injector assembly (No. 1 cylinder) circuit ·
Direct fuel injector assembly (No. 1 cylinder) ·
D INJ relay ·
ECM |
Comes on | SAE Code: P0201 |
| P020213 | Cylinder 2 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
·
Short to +B in direct fuel injector assembly (No. 2 cylinder) circuit for 40 times or more. ·
Open or short to ground in direct fuel injector assembly (No. 2 cylinder) circuit for 20 times or more. ·
Direct fuel injector assembly (No. 2 cylinder) circuit current reaches the high limit for 20 times or more. |
·
Open or short in direct fuel injector assembly (No. 2 cylinder) circuit ·
Direct fuel injector assembly (No. 2 cylinder) ·
D INJ relay ·
ECM |
Comes on | SAE Code: P0202 |
| P020313 | Cylinder 3 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
·
Short to +B in direct fuel injector assembly (No. 3 cylinder) circuit for 40 times or more. ·
Open or short to ground in direct fuel injector assembly (No. 3 cylinder) circuit for 20 times or more. ·
Direct fuel injector assembly (No. 3 cylinder) circuit current reaches the high limit for 20 times or more. |
·
Open or short in direct fuel injector assembly (No. 3 cylinder) circuit ·
Direct fuel injector assembly (No. 3 cylinder) ·
D INJ relay ·
ECM |
Comes on | SAE Code: P0203 |
| P020413 | Cylinder 4 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
·
Short to +B in direct fuel injector assembly (No. 4 cylinder) circuit for 40 times or more. ·
Open or short to ground in direct fuel injector assembly (No. 4 cylinder) circuit for 20 times or more. ·
Direct fuel injector assembly (No. 4 cylinder) circuit current reaches the high limit for 20 times or more. |
·
Open or short in direct fuel injector assembly (No. 4 cylinder) circuit ·
Direct fuel injector assembly (No. 4 cylinder) ·
D INJ relay ·
ECM |
Comes on | SAE Code: P0204 |
| P062D13 | Fuel Injector Driver Circuit Performance Bank 1 Circuit Open | Open or short in direct fuel injector assembly (all cylinders) circuits for 60 times or more (1 trip detection logic). | ·
Open or short in direct fuel injector assembly circuit ·
Direct fuel injector assembly ·
D INJ relay ·
ECM |
Comes on | 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 drivers or direct fuel injector assembly is malfunctioning, the EDU sends direct fuel injector assembly operation condition signals (fail signals) 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 D INJ relay, and illuminates the MIL.
MONITOR STRATEGY
| Required Sensors/Components | Direct 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.
Turn the ignition switch to ON.
Turn the GTS on.
Put the engine in Inspection Mode (Maintenance Mode).
Start the engine [A].
Idle the engine for 15 seconds or more [B].
Enter the following menus: Powertrain / Engine / Trouble Codes [C].
Read the pending 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 is NORMAL, the system is normal.
·If the judgment result is ABNORMAL, the system has a malfunction.
·If the judgment result is INCOMPLETE, perform steps [B] through [C] again.
·[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 auxiliary 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.
·Vehicle Control History may be stored in the hybrid vehicle control ECU assembly if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the Freeze Frame Data and Vehicle Control History can be useful for troubleshooting.
(Select Powertrain in Health Check and then check the time stamp data.)
·If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU assembly, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.
- HINT:
- ·
If the current from the 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
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: P062D13, P020113, P020213, P020313 and P020413 B DTC 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 C141-16 (#1D+) - C141-17 (#1D-) 20°C (68°F) 1.34 to 1.64 Ω C141-11 (#2D+) - C141-10 (#2D-) 20°C (68°F) 1.34 to 1.64 Ω C141-12 (#3D+) - C141-13 (#3D-) 20°C (68°F) 1.34 to 1.64 Ω C141-15 (#4D+) - C141-14 (#4D-) 20°C (68°F) 1.34 to 1.64 Ω C141-16 (#1D+) or C141-17 (#1D-) - Body ground and other terminals Always 1 MΩ or higher C141-11 (#2D+) or C141-10 (#2D-) - Body ground and other terminals Always 1 MΩ or higher C141-12 (#3D+) or C141-13 (#3D-) - Body ground and other terminals Always 1 MΩ or higher C141-15 (#4D+) or C141-14 (#4D-) - Body ground and other terminals Always 1 MΩ or higher
- HINT:
-
The standard values shown are direct fuel injector assembly resistance values.
- Result:
Proceed to OK NG
OK
NG
Check the resistance of the direct fuel injector assembly.
- HINT:
-
Perform "Inspection After Repair" after replacing the direct fuel injector assembly.
- Result:
Proceed to OK NG
OK
NG
- Result:
Proceed to OK NG
OK
NG
Remove the D INJ relay from the No. 1 engine room relay block.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition 3 (D INJ relay holder) - Body ground Always 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
Remove the D INJ relay from the No. 1 engine room relay block.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition 1 (D INJ relay holder) - Body ground Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
Remove the D INJ relay from the No. 1 engine room relay block.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 5 (D INJ relay holder) - A47-53 (+BD1) Always Below 1 Ω 2 (D INJ relay holder) - A47-34 (IREL) Always Below 1 Ω 5 (D INJ relay holder) or A47-53 (+BD1) - Body ground and other terminals Always 10 kΩ or higher 2 (D INJ relay holder) or A47-34 (IREL) - Body ground and other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG