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 | Memory | Note |
---|---|---|---|---|---|---|
P020113 | Cylinder 1 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
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| Comes on | DTC stored | SAE Code: P0201 |
P020213 | Cylinder 2 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
|
| Comes on | DTC stored | SAE Code: P0202 |
P020313 | Cylinder 3 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
|
| Comes on | DTC stored | SAE Code: P0203 |
P020413 | Cylinder 4 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
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| Comes on | DTC stored | 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). |
| 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 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
Related DTCs | P0201: Injector circuit open (cylinder 1) P0202: Injector circuit open (cylinder 2) P0203: Injector circuit open (cylinder 3) P0204: Injector circuit open (cylinder 4) P062D: Injector driver performance |
Required Sensors/Components (Main) | Direct fuel injector assembly ECM (injector driver) |
Required Sensors/Components (Related) | - |
Frequency of Operation | Continuous |
Duration | - |
MIL Operation | Immediate |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
P0201, P0202, P0203 and P0204 All of the following conditions are met | - |
Confirmed injection | 2 times or more |
Either of the following conditions is met | A or B |
A. All of the following conditions are met | (a), (b) and (c) |
(a) Starter | Off |
(b) Auxiliary battery voltage | 10.5 V or higher |
(c) Time after condition (b) is met | 0.5 seconds or more |
B. All of the following conditions are met | (d), (e) and (f) |
(d) Starter | On |
(e) Auxiliary battery voltage | 8 V or higher |
(f) Time after condition (e) is met | 0.5 seconds or more |
Engine speed | 100 to 6000 rpm |
Injection time | 0.00023 seconds or more |
Injector driver relay | On |
Fuel injector driver performance fail (P062D) | Not detected |
The other injector of the same INJECTOR DRIVER FAIL SIGNAL | Not operating |
Power switch | On (IG) |
Time after power switch off to on (IG) | 0.5 seconds or more |
Monitor runs whenever the following DTCs are not stored | None |
All of the following conditions are met | - |
Confirmed injection | 2 times or more |
Either of the following conditions is met | A or B |
A. All of the following conditions are met | (a), (b) and (c) |
(a) Starter | Off |
(b) Auxiliary battery voltage | 10.5 V or higher |
(c) Time after condition (b) is met | 0.5 seconds or more |
B. All of the following conditions are met | (d), (e) and (f) |
(d) Starter | On |
(e) Auxiliary battery voltage | 8 V or higher |
(f) Time after condition (e) is met | 0.5 seconds or more |
Engine speed | 100 to 6000 rpm |
Injection time | 0.00023 seconds or more |
Injector driver relay | On |
The other injector of the same INJECTOR DRIVER FAIL SIGNAL | Not operating |
Power switch | On (IG) |
Time after power switch off to on (IG) | 0.5 seconds or more |
TYPICAL MALFUNCTION THRESHOLDS
P0201, P0202, P0203 and P0204 One of the following conditions is met | A, B or C |
A. No confirmed injection signal input | 20 times or more |
B. Both of the following conditions are met | 40 times or more |
Current injector voltage for the same INJECTOR DRIVER FAIL SIGNAL* detected by injector driver IC | 4.8 V or higher |
Last injector voltage for the same INJECTOR DRIVER FAIL SIGNAL* detected by injector driver IC | 4.8 V or higher |
C. Either of the following conditions is met | (a) or (b) |
(a) Both of the following conditions are met | 20 times or more |
Current injector driver MOSFET current detected by injector driver IC | 30 A or more |
Last injector driver MOSFET current detected by injector driver IC | 30 A or more |
(b) Both of the following conditions are met | 1 and 2 |
1. Either of the following conditions is met | 20 times or more |
Current injector current during peak current control for the same INJECTOR DRIVER FAIL SIGNAL* detected by injector driver IC | 125 A or more |
Current injector current during hold current control for the same INJECTOR DRIVER FAIL SIGNAL* detected by injector driver IC | 100 A or more |
2. Either of the following conditions is met | 20 times or more |
Last injector current during peak current control for the same INJECTOR DRIVER FAIL SIGNAL* detected by injector driver IC | 125 A or more |
Last injector current during hold current control for the same INJECTOR DRIVER FAIL SIGNAL* detected by injector driver IC | 100 A or more |
No confirmed injection signal input in all cylinders | 60 times or more |
*: Definition of the INJECTOR DRIVER FAIL SIGNAL | - |
INJECTOR DRIVER FAIL SIGNAL 1 | #1 and #4 |
INJECTOR DRIVER FAIL SIGNAL 2 | #2 and #3 |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
Click here
HINT:
Techstream Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
(Select Powertrain in Health Check and then check the time stamp data.)
Click here
Click here
HINT:
PROCEDURE
1. | CHECK DTC OUTPUT (DTC P020113, P020213, P020313, P020413 AND/OR P062D13) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Trouble Codes.
(e) Read the DTCs.
Powertrain > Engine > Trouble Codes 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 |
B | GO TO STEP 4 |
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2. | CHECK HARNESS AND CONNECTOR |
(a) Disconnect the ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
C88-16 (#1D+) - C88-17 (#1D-) | 20°C (68°F) | 1.34 to 1.64 Ω |
C88-11 (#2D+) - C88-10 (#2D-) | 20°C (68°F) | 1.34 to 1.64 Ω |
C88-12 (#3D+) - C88-13 (#3D-) | 20°C (68°F) | 1.34 to 1.64 Ω |
C88-15 (#4D+) - C88-14 (#4D-) | 20°C (68°F) | 1.34 to 1.64 Ω |
C88-16 (#1D+) or C88-17 (#1D-) - Body ground and other terminals | Always | 1 MΩ or higher |
C88-11 (#2D+) or C88-10 (#2D-) - Body ground and other terminals | Always | 1 MΩ or higher |
C88-12 (#3D+) or C88-13 (#3D-) - Body ground and other terminals | Always | 1 MΩ or higher |
C88-15 (#4D+) or C88-14 (#4D-) - Body ground and other terminals | Always | 1 MΩ or higher |
HINT:
The standard values shown are direct fuel injector assembly resistance values.
OK | REPLACE ECM |
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3. | INSPECT DIRECT FUEL INJECTOR ASSEMBLY (RESISTANCE) |
(a) Check the resistance of the direct fuel injector assembly.
Click here
HINT:
Perform "Inspection After Repair" after replacing the direct fuel injector assembly.
Click here
OK | REPAIR OR REPLACE HARNESS OR CONNECTOR (DIRECT FUEL INJECTOR ASSEMBLY - ECM) |
NG | REPLACE DIRECT FUEL INJECTOR ASSEMBLY |
4. | INSPECT D INJ RELAY |
(a) Inspect the D INJ relay.
Click here
NG | REPLACE D INJ RELAY |
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5. | CHECK TERMINAL VOLTAGE (POWER SOURCE OF D INJ RELAY) |
*1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly |
*2 | D INJ Relay |
(a) Remove the D INJ relay from the No. 1 engine room relay block and No. 1 junction block assembly.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
3 (D INJ relay) - Body ground | Always | 11 to 14 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - D INJ RELAY) |
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6. | CHECK TERMINAL VOLTAGE (POWER SOURCE OF D INJ RELAY) |
*1 | No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly |
*2 | D INJ Relay |
(a) Remove the D INJ relay from the No. 1 engine room relay block and No. 1 junction block assembly.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
1 (D INJ relay) - Body ground | Power switch on (IG) | 11 to 14 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 1 RELAY - D INJ RELAY) |
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7. | CHECK HARNESS AND CONNECTOR (D INJ RELAY - ECM) |
(a) Remove the D INJ relay from the No. 1 engine room relay block and No. 1 junction block assembly.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
5 (D INJ relay) - A26-53 (+BD1) | Always | Below 1 Ω |
2 (D INJ relay) - A26-34 (IREL) | Always | Below 1 Ω |
5 (D INJ relay) or A26-53 (+BD1) - Body ground and other terminals | Always | 10 kΩ or higher |
2 (D INJ relay) or A26-34 (IREL) - Body ground and other terminals | Always | 10 kΩ or higher |
OK | REPLACE ECM |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |