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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 169 (Engine Control System - Diagnostic Codes (9 Of 9) & Symptom Tests (1 Of 3)) >> SFI System >> DTC P2C90-00: Crankcase Ventilation System - Hose "A" Disconnected [09/2022 - 09/2024] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different car, the 2025 Toyota GR Corolla, 2024 Toyota GR Corolla, and 2023 Toyota GR Corolla. However, it is still accessible from the selected car via links, so may be relevant.
Related DTCs P2C90: PCV fresh air hose monitor (bank 1)
P2C91: PCV fresh air hose monitor (bank 2)
Required Sensors/Components (Main) Vacuum sensor assembly
Required Sensors/Components (Related) Mass air flow meter sub-assembly
Engine coolant temperature sensor
Frequency of Operation Once per driving cycle
Duration Within 3 seconds
MIL Operation 2 driving cycles
Sequence of Operation None
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