- DTC judgment completed
- System normal
| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001HTN1 |
| Model Year Start: 2020 | Model: Corolla Hatchback | Prod Date Range: [03/2019 - 09/2022] |
| Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P21CF13,P21D013-P21D213; Cylinder 1 Injector "B" Circuit Open; 2020 - 2022 MY Corolla Corolla Hatchback [03/2019 - 09/2022] | ||
|
DTC |
P21CF13 |
Cylinder 1 Injector "B" Circuit Open |
|
DTC |
P21D013 |
Cylinder 2 Injector "B" Circuit Open |
|
DTC |
P21D113 |
Cylinder 3 Injector "B" Circuit Open |
|
DTC |
P21D213 |
Cylinder 4 Injector "B" Circuit Open |
DESCRIPTION
The D-4S system has two 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 the percentage of direct injection and port injection necessary in accordance with the engine speed and load.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
|
P21CF13 |
Cylinder 1 Injector "B" Circuit Open |
Open or short in port fuel injector assembly (1 trip detection logic). |
|
Comes on |
DTC stored |
|
|
P21D013 |
Cylinder 2 Injector "B" Circuit Open |
Open or short in port fuel injector assembly (1 trip detection logic). |
|
Comes on |
DTC stored |
|
|
P21D113 |
Cylinder 3 Injector "B" Circuit Open |
Open or short in port fuel injector assembly (1 trip detection logic). |
|
Comes on |
DTC stored |
|
|
P21D213 |
Cylinder 4 Injector "B" Circuit Open |
Open or short in port fuel injector assembly (1 trip detection logic). |
|
Comes on |
DTC stored |
|
MONITOR DESCRIPTION
The ECM monitors the injection control of the port fuel injector assemblies. If a malfunction is detected in a port fuel injector assembly circuit, the ECM cancels the injection control for the corresponding cylinder, illuminates the MIL and stores a DTC.
MONITOR STRATEGY
|
Related DTCs |
P21CF: Port injector (cylinder 1) circuit/open P21D0: Port injector (cylinder 2) circuit/open P21D1: Port injector (cylinder 3) circuit/open P21D2: Port injector (cylinder 4) circuit/open |
|
Required Sensors/Components (Main) |
Port fuel injector assembly (cylinder 1 to 4) |
|
Required Sensors/Components (Related) |
- |
|
Frequency of Operation |
Continuous |
|
Duration |
- |
|
MIL Operation |
Immediate |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
|
Monitor runs whenever the following DTCs are not stored |
None |
|
All of the following conditions are met |
- |
|
Battery voltage |
8 V or higher |
|
Fuel cut |
Off |
|
Synchronous injection |
Operating |
|
Ignition switch |
ON |
|
Either of the following conditions is met |
Condition A or B |
|
A. Engine |
Running |
|
B. Starter |
On |
|
Injection time |
Higher than 0 second |
TYPICAL MALFUNCTION THRESHOLDS
|
One of the following conditions is met |
A, B or C |
|
A. Both of the following conditions are met |
10 times or more |
|
Command to injector |
Off |
|
Injector voltage detected by injector driver IC |
[Battery voltage multiplied by 0.55] V or less |
|
B. Both of the following conditions are met |
10 times or more |
|
Command to injector |
Off |
|
Injector voltage detected by injector driver IC |
Higher than [battery voltage multiplied by 0.55] V, and [battery voltage multiplied by 0.7] V or less |
|
C. One of the following conditions is met |
(a), (b) or (c) |
|
(a) Both of the following conditions are met |
10 times or more |
|
Command to injector |
On |
|
Injector voltage detected by injector driver IC |
[Battery voltage multiplied by 0.12] V or higher |
|
(b) Both of the following conditions are met |
10 times or more |
|
Command to injector |
On |
|
Injector current detected by injector driver IC |
2.6 A or higher |
|
(c) Following condition is met |
10 times or more |
|
Injector driver IC internal temperature detected by injector driver IC |
150°C (302°F) or higher |
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
![2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream 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 [A].
- Idle the engine for 3 minutes or more [B].
- Turn the Techstream on.
- 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: P21CF13, P21D013, P21D113 or P21D213.
-
Check the DTC judgment result.
Techstream Display
Description
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:
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 DTCS OUTPUT (IN ADDITION TO DTC P21CF13, P21D013, P21D113 OR P21D213) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(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 P21CF13, P21D013, P21D113 or P21D213 is output |
A |
|
DTC P21CF13, P21D013, P21D113 and P21D213 are output |
B |
| B |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY - PORT FUEL INJECTOR ASSEMBLY) |
|
|
2. |
CHECK TERMINAL VOLTAGE (POWER SOURCE OF PORT FUEL INJECTOR ASSEMBLY) |
|
*a |
Front view of wire harness connector (to Port Fuel Injector Assembly) |
(a) Disconnect the port fuel injector assembly connector.
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F1-1 (#1) - Body ground |
Ignition switch ON |
11 to 14 V |
|
F2-1 (#2) - Body ground |
Ignition switch ON |
11 to 14 V |
|
F3-1 (#3) - Body ground |
Ignition switch ON |
11 to 14 V |
|
F4-1 (#4) - Body ground |
Ignition switch ON |
11 to 14 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY - PORT FUEL INJECTOR ASSEMBLY) |
|
|
3. |
CHECK HARNESS AND CONNECTOR (PORT FUEL INJECTOR ASSEMBLY - ECM) |
(a) Disconnect the port fuel injector assembly connector.
(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 |
|---|---|---|
|
F1-2 (#10) - C76-76 (#10) |
Always |
Below 1 Ω |
|
F2-2 (#20) - C76-75 (#20) |
Always |
Below 1 Ω |
|
F3-2 (#30) - C76-74 (#30) |
Always |
Below 1 Ω |
|
F4-2 (#40) - C76-73 (#40) |
Always |
Below 1 Ω |
|
F1-2 (#10) or C76-76 (#10) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
F2-2 (#20) or C76-75 (#20) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
F3-2 (#30) or C76-74 (#30) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
F4-2 (#40) or C76-73 (#40) - Body ground and other terminals |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
INSPECT PORT FUEL INJECTOR ASSEMBLY (RESISTANCE) |
(a) Inspect the port fuel injector assembly.
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HINT:
Perform "Inspection After Repair" after replacing the port fuel injector assembly.
Click here
| OK |
|
| NG |
|
|
|