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Home >> Lexus >> 2023 >> NX 250 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 108 (Engine Control System - Diagnostic Codes (P21CF-P26CA)) >> SFI System >> DTC P21CF-13: Cylinder 1 Injector "B" Circuit Open; DTC P21D0-13: Cylinder 2 Injector "B" Circuit Open; DTC P21D1-13: Cylinder 3 Injector "B" Circuit Open; DTC P21D2-13: Cylinder 4 Injector "B" Circuit Open [11/2021 - 03/2022] >> Description

DTC P21CF-13: Cylinder 1 Injector "B" Circuit Open; DTC P21D0-13: Cylinder 2 Injector "B" Circuit Open; DTC P21D1-13: Cylinder 3 Injector "B" Circuit Open; DTC P21D2-13: Cylinder 4 Injector "B" Circuit Open [11/2021 - 03/2022]: Description

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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 Note
P21CF-13 Cylinder 1 Injector "B" Circuit Open Open or short in port fuel injector assembly (1 trip detection logic).
  • Open or short in port fuel injector assembly circuit
  • Port fuel injector assembly
  • ECM
Comes on SAE Code: P21CF
P21D0-13 Cylinder 2 Injector "B" Circuit Open Open or short in port fuel injector assembly (1 trip detection logic).
  • Open or short in port fuel injector assembly circuit
  • Port fuel injector assembly
  • ECM
Comes on SAE Code: P21D0
P21D1-13 Cylinder 3 Injector "B" Circuit Open Open or short in port fuel injector assembly (1 trip detection logic).
  • Open or short in port fuel injector assembly circuit
  • Port fuel injector assembly
  • ECM
Comes on SAE Code: P21D1
P21D2-13 Cylinder 4 Injector "B" Circuit Open Open or short in port fuel injector assembly (1 trip detection logic).
  • Open or short in port fuel injector assembly circuit
  • Port fuel injector assembly
  • ECM
Comes on SAE Code: P21D2