DTC P21CF-13: 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 [10/2018 - ]: Procedure

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CHECK DTCS OUTPUT (IN ADDITION TO DTC P21CF13, P21D013, P21D113 OR P21D213)

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
DTC P21CF13, P21D013, P21D113 or P21D213 is output	A
DTC P21CF13, P21D013, P21D113 and P21D213 are output	B

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 NO. 1 RELAY - PORT FUEL INJECTOR ASSEMBLY)

Result:

See step 2

CHECK TERMINAL VOLTAGE (POWER SOURCE OF PORT FUEL INJECTOR ASSEMBLY)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Front view of wire harness connector (to Port Fuel Injector Assembly)

Disconnect the port fuel injector assembly connector.
Turn the power switch on (IG).

Measure the voltage according to the value(s) in the table below

Standard Voltage

Tester Connection	Condition	Specified Condition
D1-1 (#1) - Body ground	Power switch on (IG)	11 to 14 V
D2-1 (#2) - Body ground	Power switch on (IG)	11 to 14 V
D3-1 (#3) - Body ground	Power switch on (IG)	11 to 14 V
D4-1 (#4) - Body ground	Power switch on (IG)	11 to 14 V

Result

Proceed to
OK
NG

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 NO. 1 RELAY - PORT FUEL INJECTOR ASSEMBLY)

Result:

See step 3

CHECK HARNESS AND CONNECTOR (PORT FUEL INJECTOR ASSEMBLY - ECM)

Disconnect the port fuel injector assembly connector.
Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
D1-2 (#10) - C34-76 (#10)	Always	Below 1 Ω
D2-2 (#20) - C34-75 (#20)	Always	Below 1 Ω
D3-2 (#30) - C34-74 (#30)	Always	Below 1 Ω
D4-2 (#40) - C34-73 (#40)	Always	Below 1 Ω
D1-2 (#10) or C34-76 (#10) - Body ground and other terminals	Always	10 kΩ or higher
D2-2 (#20) or C34-75 (#20) - Body ground and other terminals	Always	10 kΩ or higher
D3-2 (#30) or C34-74 (#30) - Body ground and other terminals	Always	10 kΩ or higher
D4-2 (#40) or C34-73 (#40) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR

Result:

See step 4

INSPECT PORT FUEL INJECTOR ASSEMBLY (RESISTANCE)

Inspect the port fuel injector assembly.

Refer to INSPECTION [10/2018 - ]

HINT:

Perform "Inspection After Repair" after replacing the port fuel injector assembly.

Refer to INITIALIZATION [10/2018 - 08/2021] Refer to INITIALIZATION [08/2021 - ]

Result

Proceed to
OK
NG

Result:

REPLACE ECM. Refer to REMOVAL [10/2018 - 07/2022] Refer to REMOVAL [07/2022 - ]

Result:

REPLACE PORT FUEL INJECTOR ASSEMBLY. Refer to REMOVAL [10/2018 - 07/2022] Refer to REMOVAL [07/2022 - ]