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Home >> Toyota >> 2020 >> Highlander L, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Engine Control System (T24A-FTS) - Diagnostic Codes (08 Of 11)) >> SFI System >> DTC P1283-00: Cold Start Fuel Injection Control Performance #1; DTC P1284-00: Cold Start Fuel Injection Control Performance #2; DTC P1285-00: Cold Start Fuel Injection Control Performance #3; DTC P1286-00: Cold Start Fuel Injection Control Performance #4 [10/2022 - ] >> Description

DTC P1283-00: Cold Start Fuel Injection Control Performance #1; DTC P1284-00: Cold Start Fuel Injection Control Performance #2; DTC P1285-00: Cold Start Fuel Injection Control Performance #3; DTC P1286-00: Cold Start Fuel Injection Control Performance #4 [10/2022 - ]: Description

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To improve emissions immediately after a cold start, cold start multi pulse fuel injection control is performed which divides a single pulse of the direct fuel injector into several smaller pulses.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
P1283-00 Cold Start Fuel Injection Control Performance #1 Cold start multi pulse fuel injection control for the No. 1 cylinder is not performed (2 trip detection logic).
  • Direct fuel injector assembly (No. 1 cylinder)
  • Open or short in direct fuel injector assembly circuit
  • ECM
Comes on SAE Code: P1283
P1284-00 Cold Start Fuel Injection Control Performance #2 Cold start multi pulse fuel injection control for the No. 2 cylinder is not performed (2 trip detection logic).
  • Direct fuel injector assembly (No. 2 cylinder)
  • Open or short in direct fuel injector assembly circuit
  • ECM
Comes on SAE Code: P1284
P1285-00 Cold Start Fuel Injection Control Performance #3 Cold start multi pulse fuel injection control for the No. 3 cylinder is not performed (2 trip detection logic).
  • Direct fuel injector assembly (No. 3 cylinder)
  • Open or short in direct fuel injector assembly circuit
  • ECM
Comes on SAE Code: P1285
P1286-00 Cold Start Fuel Injection Control Performance #4 Cold start multi pulse fuel injection control for the No. 4 cylinder is not performed (2 trip detection logic).
  • Direct fuel injector assembly (No. 4 cylinder)
  • Open or short in direct fuel injector assembly circuit
  • ECM
Comes on SAE Code: P1286
RELATED DATA LIST

DTC No. Data List
P1283-00
  • Engine Speed
  • Mass Air Flow Sensor
  • Coolant Temperature
  • Target Fuel Pressure (High)
  • Fuel Pressure (High)
  • High Fuel Pressure Sensor
  • Injection Mode
  • Injection Timing Cylinder #1 (D4)
  • Injection Time Cylinder #1 (D4)
  • Ignition Timing Cylinder #1
P1284-00
P1285-00
P1286-00