2GR-FKS (ENGINE CONTROL): SFI SYSTEM: P21CF13,P21D013-P21D413; Cylinder 1 Injector "B" Circuit Open; 2017 - 2020 MY Sienna [08/2016

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.

MONITOR DESCRIPTION

The ECM monitors the injection control of the fuel injector assemblies (for port injection). If a malfunction is detected in a fuel injector assembly (for port injection) circuit, the ECM cancels the injection control for the corresponding cylinder, illuminates the MIL and stores a DTC.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

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
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 and 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.
Turn the ignition switch to ON and turn the Techstream on.
Start the engine [A].
Idle the engine for 3 minutes or more [B].
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, P21D213, P212313 or P212413.

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 shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE, perform steps [B] and [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

Inspect the fuses for circuits related to this system before performing the following procedure.

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

(b) Disconnect the r1, r2, r3, r4, r5 and r6 fuel injector assembly (for port injection) connectors.

Perform "Inspection After Repair" after replacing the fuel injector assembly (for port injection).

(a) Disconnect the r1, r2, r3, r4, r5 and r6 fuel injector assembly (for port injection) connectors.