Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Cylinder 1 Injector "A" Circuit Open (P020113-P020613,P062D13)
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 fuel injector assemblies (for direct injection). It converts injection request signals from the ECM to high-voltage and high-current injector-drive signals that drive the fuel injector assemblies (for direct injection).
| 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):
|
| 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):
|
| Comes on | DTC stored | SAE Code: P0204 |
| P020513 | Cylinder 5 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
|
| Comes on | DTC stored | SAE Code: P0205 |
| P020613 | Cylinder 6 Injector "A" Circuit Open | One of following conditions is met (1 trip detection logic):
|
| Comes on | DTC stored | SAE Code: P0206 |
| P062D13 | Fuel Injector Driver Circuit Performance Bank 1 Circuit Open | Open or short in all fuel injector assembly (for direct injection) 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. 6.
The ECM monitors the Injector Driver (EDU) at all times. If drivers or fuel injector assembly (for direct injection) are malfunctioning, the EDU sends fuel injector assembly (for direct injection) 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 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) P0205: Injector circuit open (cylinder 5) P0206: Injector circuit open (cylinder 6) P062D: Injector driver performance |
| Required Sensors/Components (Main) | Fuel injector assembly (for direct injection) EDU (injector driver) |
| Required Sensors/Components (Related) | - |
| Frequency of Operation | Continuous |
| Duration | - |
| MIL Operation | Immediate |
| Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
All| 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) 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) 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 | 0.0008 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 |
| Engine switch | On (IG) |
| Time after engine switch off to on (IG) | 0.5 seconds or more |
| 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) 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) 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 | 0.0008 seconds or more |
| Injector driver relay | On |
| The other injector of the same INJECTOR DRIVER FAIL SIGNAL | Not operating |
| Engine switch | On (IG) |
| Time after engine switch off to on (IG) | 0.5 seconds or more |
TYPICAL MALFUNCTION THRESHOLDS
P0201, P0202, P0203, P0204, P0205 and P0206| 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 |
| (a) Current injector voltage for the same INJECTOR DRIVER FAIL SIGNAL* | 4.8 V or higher |
| (b) Last injector voltage for the same INJECTOR DRIVER FAIL SIGNAL* | 4.8 V or higher |
| C. Either of the following condition is met | 20 times or more |
| (c) Both of the following conditions are met | 1 and 2 |
| 1. Current injector driver MOSFET current detected by injector driver IC | 30 A or more |
| 2. Last injector driver MOSFET current detected by injection driver IC | 30 A or more |
| (d) Both of the following conditions are met | 3 and 4 |
| 3. Current injector current for the same INJECTOR DRIVER FAIL SIGNAL* detected by injector driver IC | 30 A or more |
| 4. Last injector current for the same INJECTOR DRIVER FAIL SIGNAL* detected by injector driver IC | 30 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 #5 |
| INJECTOR DRIVER FAIL SIGNAL 3 | #3 and #6 |
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.
Click here
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-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream 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.
- Start the engine [A].
- Idle the engine for 15 seconds or more [B].
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Trouble Codes [C].
-
Read 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, P020513, P020613 or P062D13.
-
Check the DTC judgment result.
Techstream 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 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 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 Techstream. 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
| 1. | CHECK DTC OUTPUT (DTC P020113, P020213, P020313, P020413, P020513, P020613 AND/OR P062D13) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine 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, P020413, P020513 or P020613 is output | A |
| 3 or more of the following DTCs are output: P062D13, P020113, P020213, P020313, P020413, P020513 and P020613 | B |
| P062D13 is output |
| B | .gif) | 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 |
|---|---|---|
| D2-30 (#1D+) - D2-60 (#1D-) | 20°C (68°F) | 1.76 to 2.06 Ω |
| D2-28 (#2D+) - D2-58 (#2D-) | 20°C (68°F) | 1.76 to 2.06 Ω |
| D2-25 (#3D+) - D2-26 (#3D-) | 20°C (68°F) | 1.76 to 2.06 Ω |
| D2-29 (#4D+) - D2-59 (#4D-) | 20°C (68°F) | 1.76 to 2.06 Ω |
| D2-27 (#5D+) - D2-57 (#5D-) | 20°C (68°F) | 1.76 to 2.06 Ω |
| D2-24 (#6D+) - D2-54 (#6D-) | 20°C (68°F) | 1.76 to 2.06 Ω |
| D2-30 (#1D+) or D2-60 (#1D-) - Body ground and other terminals | Always | 1 MΩ or higher |
| D2-28 (#2D+) or D2-58 (#2D-) - Body ground and other terminals | Always | 1 MΩ or higher |
| D2-25 (#3D+) or D2-26 (#3D-) - Body ground and other terminals | Always | 1 MΩ or higher |
| D2-29 (#4D+) or D2-59 (#4D-) - Body ground and other terminals | Always | 1 MΩ or higher |
| D2-27 (#5D+) or D2-57 (#5D-) - Body ground and other terminals | Always | 1 MΩ or higher |
| D2-24 (#6D+) or D2-54 (#6D-) - Body ground and other terminals | Always | 1 MΩ or higher |
HINT:
The standard values shown are fuel injector assembly (for direct injection) resistance values.
| OK | | REPLACE ECM |
|
| 3. | INSPECT FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION (RESISTANCE)) |
(a) Check the resistance of the fuel injector assembly (for direct injection).
Click here
HINT:
Perform "Inspection After Repair" after replacing the fuel injector assembly (for direct injection).
Click here
| OK | | REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION) - ECM) |
| NG | | REPLACE FUEL INJECTOR ASSEMBLY (FOR DIRECT INJECTION) |
| 4. | INSPECT INJ RELAY |
(a) Inspect the INJ relay.
Click here
| NG | | REPLACE INJ RELAY |
|
| 5. | CHECK HARNESS AND CONNECTOR (BATTERY - INJ RELAY) |
(a) Remove the INJ relay from the engine room relay block and junction block assembly.
(b) 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 |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 6. | CHECK HARNESS AND CONNECTOR (INJ RELAY - ECM) |
(a) Remove the INJ relay from the engine room relay block and 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 |
|---|---|---|
| 3 (INJ relay) - D2-19 (+BD1) | Always | Below 1 Ω |
| 3 (INJ relay) - D2-18 (+BD2) | Always | Below 1 Ω |
| 1 (INJ relay) - A37-7 (IREL) | Always | Below 1 Ω |
| 3 (INJ relay) or D2-19 (+BD1) - Body ground and other terminals | Always | 10 kΩ or higher |
| 3 (INJ relay) or D2-18 (+BD2) - Body ground and other terminals | Always | 10 kΩ or higher |
| 1 (INJ relay) or A37-7 (IREL) - Body ground and other terminals | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 7. | CHECK HARNESS AND CONNECTOR (POWER SOURCE OF INJ RELAY) |
(a) Remove the INJ relay from the engine room relay block and junction block assembly.
(b) Turn the engine switch on (IG).
(c) 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 |
| OK | | REPLACE ECM |
|
| 8. | CHECK HARNESS AND CONNECTOR (SEMICONDUCTOR PWR INTEGRATION ECU - INJ RELAY) |
(a) Remove the INJ relay from the engine room relay block and junction block assembly.
(b) Disconnect the semiconductor pwr integration ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 1G-8 - 2 (INJ relay) | Always | Below 1 Ω |
| 1G-8 or 2 (INJ relay) - Body ground and other terminals | Always | 10 kΩ or higher |
| OK | | REPLACE SEMICONDUCTOR POWER INTEGRATION ECU |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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