Engine Control System Diagnostics (P08B9 - P2135)

• Troubleshooting
  • DTC P08B9 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • CSS_5V, CSS_SIG1, CSS_SIG2, CSS_GND Circuit Inspection
    • Clutch Pedal Stroke Sensor Inspection
    • VSA Modulator-Control Unit Inspection
  • DTC P08B9 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • CSS_5V, CSS_SIG1, CSS_SIG2, CSS_GND Circuit Inspection
    • Clutch Pedal Stroke Sensor Inspection
    • VSA Modulator-Control Unit Inspection
  • DTC P0A11 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • DC_STS Circuit Inspection
    • DC-DC Converter Inspection
    • PCM Inspection
  • DTC P0A94 (1.5L Engine) (2023 2024)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • DC_STS Shorted Wire Inspection
    • +B_DC/DC1, +B_DC/DC2, GND Inspection
    • DC-DC Converter Inspection (Output Circuit)
    • DC-DC Converter Inspection (Internal Circuit)
    • DC-DC Converter Inspection
    • PCM Inspection
  • DTC P0A94 (1.5L Engine, USA/Canada models) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • DC_STS Shorted Wire Inspection
    • +B_DC/DC1, +B_DC/DC2, GND Inspection
    • DC-DC Converter Inspection (Output Circuit)
    • DC-DC Converter Inspection (Internal Circuit)
    • DC-DC Converter Inspection
    • PCM Inspection
  • DTC P1009 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • VTC System Oil Passage Inspection
  • DTC P101A (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • VTC System Oil Passage Inspection
  • DTC P134B (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • CKP Sensor Circuit Connectors Inspection
    • CKP Sensor Circuit Terminals Inspection
    • CKP Pulse Plate Visual Inspection
    • CKP Sensor Inspection
    • PCM Inspection
  • DTC P1454, P2422 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • EVAP Canister Vent Hose Inspection
    • EVAP Canister Vent Shut Valve Functional Inspection
    • FTP Sensor Vent Hose Inspection
    • FTP Sensor Port Inspection
    • EVAP Canister Inspection
  • DTC P1458 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Related Information
    • HDS Function
    • FTP Sensor Functional Inspection
    • FTP Sensor Port Visual Inspection
    • FTP Sensor Vent Hose Inspection
    • EVAP Canister Vent Shut Valve Inspection
    • EVAP Canister Vent Hose Inspection
  • DTC P145D (1.5L Engine)
    • Notes
    • Overview
  • DTC P1549 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P1549 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P154A (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P154A (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P154B (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • 12 Volt Battery Sensor Inspection (Temperature Check)
    • 12 Volt Battery Sensor Inspection (Signal Check)
  • DTC P15C5
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Brake Booster Pressure Sensor Inspection
  • DTC P15C7
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Brake Booster Vacuum Line Inspection
    • Brake Booster Vacuum Hose Functional Inspection
    • Brake Booster Vacuum Hose Inspection
    • Brake Booster Pressure Sensor Inspection
  • DTC P15C9
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Brake Booster Vacuum Hose Functional Inspection
  • DTC P1658 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • FI_SUB_RLY_OUT, FI_SUB_RLY_CL- Shorted Wire Inspection
    • PCM Inspection
  • DTC P1659 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • +B_DBW Circuit Inspection
    • FI_SUB_RLY_CL-, FI_SUB_RLY_OUT Open Wire Inspection
    • FI_SUB_RLY_OUT Shorted Wire Inspection
    • PCM Inspection
  • DTC P1683 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Throttle Body Inspection (Stuck)
    • Throttle Body Inspection (Cleaning)
  • DTC P1683 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Throttle Body Inspection (Stuck)
    • Throttle Body Inspection (Cleaning)
  • DTC P1684 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Throttle Body Inspection (Stuck)
    • Throttle Body Inspection (Cleaning)
  • DTC P1684 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Throttle Body Inspection (Stuck)
    • Throttle Body Inspection (Cleaning)
  • DTC P16BB (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • ACG_+B Circuit Inspection
    • Alternator Circuit Terminals Inspection
    • Alternator Inspection
  • DTC P16BB (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • ACG_+B Circuit Inspection
    • Alternator Circuit Terminals Inspection
    • Alternator Inspection
  • DTC P16E2 (1.5L Engine) (2023 2024)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Alternator Inspection
    • Components Connected to LIN Circuit Inspection
    • LIN (BATT_SENSOR) [LIN] Circuit Inspection
    • PCM Inspection
  • DTC P16E2 (1.5L Engine, USA/Canada models) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Alternator Inspection
    • Components Connected to LIN Circuit Inspection
    • LIN (BATT_SENSOR) [LIN] Circuit Inspection
    • PCM Inspection
  • DTC P16E2 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • LIN (BATT_SENSOR) [LIN] Circuit Inspection
    • Alternator Inspection
    • Components Connected to LIN Circuit Inspection
    • PCM Inspection
  • DTC P16E3 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • 12 Volt Battery Sensor Inspection
    • Components Connected to LIN Circuit Inspection
    • +B_H/STRG_BATT_SNSR, LIN (BATT_SENSOR) Circuit Inspection
    • PCM Inspection
  • DTC P16E3 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • +B_H/STRG_BATT_SNSR, LIN (BATT_SENSOR) [LIN] Circuit Inspection
    • 12 Volt Battery Sensor Inspection
    • Components Connected to LIN Circuit Inspection
    • PCM Inspection
  • DTC P16E4 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P16E4 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P16E5 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • IG1 ST CUT RLY, LIN (BATT_SENSOR) Circuit Inspection
    • Component Connected to LIN (BATT_SENSOR) Circuit Inspection
    • DC-DC Converter Inspection
    • DC-DC Converter Circuit Inspection
    • PCM Inspection
  • DTC P16E6 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • ATPST [ATP-ST] Shorted Wire Inspection
    • PCM Inspection
  • DTC P16EB (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • +B_ACTIVE_EXHAUST_VALVE, GND, LIN (BATT_SENSOR) [LIN] Circuit Inspection
    • Active Exhaust Valve Actuator Component Inspection
    • Active Exhaust Valve Actuator Inspection
    • Component Connected to LIN Circuit Inspection
    • PCM Inspection
  • DTC P16F3 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • IG1_STARTER_CUT, ST_CUT_RLY1_CL- Circuit Inspection
    • PCM Inspection (1)
    • PCM Inspection (2)
  • DTC P16F3 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • IG1_ST_CUT_RLY, ST_CUT_RLY1_CL- Circuit Inspection
    • PCM Inspection (1)
    • PCM Inspection (2)
  • DTC P16F4 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • IG1_STARTER_CUT, ST_CUT_RLY2_CL- Circuit Inspection
    • PCM Inspection (1)
    • PCM Inspection (2)
  • DTC P16F4 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • IG1_ST_CUT_RLY, ST_CUT_RLY2_CL- Circuit Inspection
    • PCM Inspection (1)
    • PCM Inspection (2)
  • DTC P16F5 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • ST_CUT_RLY1_CL- Shorted Wire Inspection
    • PCM Inspection
  • DTC P16F5 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • ST_CUT_RLY1_CL- Shorted Wire Inspection
    • PCM Inspection
  • DTC P16F6 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • ST_CUT_RLY2_CL- Shorted Wire Inspection
    • PCM Inspection
  • DTC P16F6 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • ST_CUT_RLY2_CL- Shorted Wire Inspection
    • PCM Inspection
  • DTC P1701 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Back-Up Light Switch Inspection
    • BACK_LT [BKLT-] Shorted Wire Inspection
    • PCM Inspection
  • DTC P1701 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Back-Up Light Switch Inspection
    • BACK_LT [BKLT-] Shorted Wire Inspection
    • PCM Inspection
  • DTC P1707 (1.5L Engine) (2023 2024)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Neutral Position Sensor Inspection
    • VCC1, NSS2 Circuit Inspection
    • PCM Inspection
  • DTC P1707 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Neutral Position Sensor Inspection
    • VCC1_NSS, NSS2 Circuit Inspection
    • PCM Inspection
  • DTC P1708 (1.5L Engine) (2023 2024)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Neutral Position Sensor Inspection
    • NSS2, SG1 Circuit Inspection
    • PCM Inspection
  • DTC P1708 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Neutral Position Sensor Inspection
    • NSS2, SG_NSS Circuit Inspection
    • PCM Inspection
  • DTC P1AF0 (1.5L Engine, PGM-FI System) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • +B_IGP Circuit Inspection
    • FI_MAIN_RLY_OUT, FI_MAIN_RLY_CL- Open Wire Inspection
    • FI_MAIN_RLY_OUT Shorted Wire Inspection
    • Components Connected to FI_MAIN_RLY_OUT Circuit Inspection
    • PCM Inspection
  • DTC P1AF1 (1.5L Engine, CVT, PGM-FI System) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P1AF1 (1.5L Engine, M/T, PGM-FI System) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • PCM Inspection
  • DTC P1AF2 (1.5L Engine) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P1AF3 (1.5L Engine, CVT) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P1AF3 (1.5L Engine, M/T) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • PCM Inspection
  • DTC P2073 (1.5L Engine) (2023 2024)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Vacuum Line Visual Inspection
    • MAP Sensor Functional Inspection (1)
    • MAP Sensor Functional Inspection (2)
  • DTC P2073 (1.5L Engine) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Vacuum Line Visual Inspection
    • MAP Sensor Functional Inspection (1)
    • MAP Sensor Functional Inspection (2)
  • DTC P2074 (1.5L Engine) (2023 2024)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • MAP Sensor Functional Inspection (1)
    • MAP Sensor Functional Inspection (2)
  • DTC P2074 (1.5L Engine) (2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • MAP Sensor Functional Inspection (1)
    • MAP Sensor Functional Inspection (2)
  • DTC P2096, P2097 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Cylinder A/F Variation Inspection
    • Exhaust System Visual Inspection
    • A/F Sensor (Sensor 1) Inspection
  • DTC P2096, P2097 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Exhaust System Visual Inspection
    • A/F Sensor (Sensor 1) Inspection
    • Secondary HO2S (Sensor 2) Inspection
  • DTC P2101 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Throttle Body Inspection (Cleaning)
    • Throttle Body Component Inspection
    • MTR1, MTR2 Open Wire Inspection
    • PCM Inspection
  • DTC P2101 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Throttle Body Inspection (Cleaning)
    • Throttle Body Component Inspection
    • MTR1, MTR2 Open Wire Inspection
    • PCM Inspection
  • DTC P2108 (1.5L Engine)
    • Notes
    • Overview
  • DTC P2118 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Throttle Body Component Inspection
    • MTR1, MTR2, SG3 Circuit Inspection
    • PCM Inspection
  • DTC P2118 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • Throttle Body Component Inspection
    • MTR1, MTR2, SG_THL Circuit Inspection
    • PCM Inspection
  • DTC P2119 (1.5L Engine)
    • Notes
    • Overview
  • DTC P2119 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
  • DTC P2121 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Area
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection (1)
    • APP Sensor Inspection (2)
    • VCC4, APS1, SG4 Circuit Inspection
    • PCM Inspection
  • DTC P2121 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • VCC4, APS1, SG4 Circuit Inspection
    • PCM Inspection
  • DTC P2122 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • VCC4, APS1 Circuit Inspection
    • PCM Inspection
  • DTC P2122 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • VCC4, APS1 Circuit Inspection
    • PCM Inspection
  • DTC P2123 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • SG4 Open Wire Inspection
    • PCM Inspection
  • DTC P2123 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • SG4 Open Wire Inspection
    • PCM Inspection
  • DTC P2126 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Area
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection (1)
    • APP Sensor Inspection (2)
    • VCC5, APS2, SG5 Circuit Inspection
    • PCM Inspection
  • DTC P2126 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • VCC5, APS2, SG5 Circuit Inspection
    • PCM Inspection
  • DTC P2127 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • VCC5, APS2 Circuit Inspection
    • PCM Inspection
  • DTC P2127 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • VCC5, APS2 Circuit Inspection
    • PCM Inspection
  • DTC P2128 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • SG5 Open Wire Inspection
    • PCM Inspection
  • DTC P2128 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • APP Sensor Inspection
    • SG5 Open Wire Inspection
    • PCM Inspection
  • DTC P2135 (1.5L Engine)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • THL1, THL2 Shorted Wire Inspection
    • TP Sensor Circuit Inspection
    • PCM Inspection
  • DTC P2135 (2.0L Engine) (2024 2025)
    • Notes
    • Overview
    • Inspection Outline
    • Confirmation Procedure
    • Related Information
    • HDS Function
    • THL1, THL2 Shorted Wire Inspection
    • TP Sensor Circuit Inspection
    • PCM Inspection