Engine Mechanical - Troubleshooting
- Troubleshooting
- A/C Signal Circuit Troubleshooting (3. 0L Engine)
- A/C Signal Circuit Troubleshooting (3. 5L Engine)
- Auto Idle Stop System Symptom Troubleshooting - Auto idle stop system does not operate (3. 0L Engine)
- Auto Idle Stop System Symptom Troubleshooting - Auto idle stop system does not operate (3. 5L Engine)
- Auto Idle Stop System Symptom Troubleshooting - Starter System Counter Inspection (2022 2023 2024)
- Auto Idle Stop System Symptom Troubleshooting - Starter System Counter Inspection (USA/Canada models) (2025)
- Intake Air System and Exhaust System Symptom Troubleshooting - Turbocharger Under Boost Problem (3. 0L Engine)
- MIL Circuit Troubleshooting (3. 0L Engine)
- MIL Circuit Troubleshooting (3. 5L Engine)
- PCM Power and Ground Circuit Troubleshooting (3. 0L Engine)
- PCM Power and Ground Circuit Troubleshooting (3. 5L Engine)
- Circuit Diagram
- Component Location Index
- General Information
- (Guidance) - Powertrain
- How to read
- Tighten bolts and nuts according to the service information. (Torque control method, Rotation angle method)
- Tightening Bolts/Nuts According to the Hole Shape
- Tightening Order of Bolts or Nuts with Different Sizes
- Tightening Hose Bands and Clamps
- Preventing Parts from Falling
- When Moving Parts with Hoses and Pipes
- Keeping the Connectors Free of Liquids and Debris Before Disconnecting Them
- Mounting Parts that are Spring Loaded
- Engine Configuration (3. 0L Engine)
- Engine Configuration (3. 5L Engine)
- How to Connect the HDS
- How to Set Readiness Codes (3. 0L Engine)
- Malfunction Indicator Lamp (MIL) Indication (In Relation to Readiness Codes)
- Catalytic Converter Monitor and Readiness Code
- Evaporative Emission (EVAP) Control System Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor Heater Monitor Readiness Code
- Misfire Monitor and Readiness Code
- Fuel System Monitor and Readiness Code
- Comprehensive Component Monitor and Readiness Code
- EGR Monitor and Readiness Code
- How to Set Readiness Codes (3. 5L Engine)
- Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
- Catalytic Converter Monitor and Readiness Code
- Evaporative Emission (EVAP) Control System Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor Heater Monitor Readiness Code
- Misfire Monitor and Readiness Code
- Fuel System Monitor and Readiness Code
- Comprehensive Component Monitor and Readiness Code
- EGR Monitor and Readiness Code
- Intake Air System and Exhaust System Service Precautions
- (Guidance) - Powertrain
- CFN
- Active Vibration Control System Description
- Active Vibration Control System Description (3. 0L Engine)
- Auto Idle Stop System Description - Operation Conditions (3. 0L Engine)
- Auto Idle Stop System Description - Operation Conditions (3. 5L Engine)
- Auto Idle Stop System Description (3. 0L Engine)
- Auto Idle Stop System Description (3. 5L Engine)
- EGR System Description (3. 5L Engine)
- EVAP System Description (3. 0L Engine)
- EVAP System Description (3. 5L Engine)
- Electronic Throttle Control System Description (3. 0L Engine)
- Electronic Throttle Control System Description (3. 5L Engine)
- PCV System Description (3. 0L Engine)
- PCV System Description (3. 5L Engine)
- PGM-FI System Description - Components (3. 0L Engine)
- PGM-FI System Description - Components (3. 5L Engine)
- PGM-FI System Description - On-Board Snapshot (3. 0L Engine)
- PGM-FI System Description - On-Board Snapshot (3. 5L Engine)
- PGM-FI System Description (3. 0L Engine)
- PGM-FI System Description (3. 5L Engine)
- Shutter Grille System Description (3. 5L Engine)
- Turbocharger Control System Description (3. 0L Engine)
- VTEC/Variable Cylinder Management (VCM) System Description (3. 5L Engine)
- Variable Cylinder Management (VCM)/VTC System Description (3. 0L Engine)
- Symptom Troubleshooting Index
- Connector View
- Active Vibration Control Unit Connector for Inputs and Outputs
- PCM Connector for Inputs and Outputs (3. 0L Engine) (2022 2023 2024)
- PCM Connector for Inputs and Outputs (3. 0L Engine) (2025)
- PCM Connector for Inputs and Outputs (3. 5L Engine) (2022 2023 2024)
- PCM Connector for Inputs and Outputs (3. 5L Engine) (2025)
- Symptom Troubleshooting Index for Viewer
- After warming up, idle speed is above specifications without load (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- After warming up, idle speed is above specifications without load (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- After warming up, idle speed is below specifications without load (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- After warming up, idle speed is below specifications without load (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- Auto idle stop system does not operate
- Auto idle stop system indicator does not come on
- Cold fast idle too high (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- Cold fast idle too high (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- Cold fast idle too low (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- Cold fast idle too low (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- Difficult to refuel (MIL works OK, NO DTCs set) (3. 0L Engine (USA/Canada models))
- Difficult to refuel (MIL works OK, NO DTCs set) (3. 5L Engine (USA/Canada models))
- Engine abnormal noise while fuel cut-off control(3. 0L Engine)
- Engine is hard to start (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- Engine is hard to start (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- Engine stalls (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- Engine stalls (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- Engine starts but stalls immediately (MIL works OK, no DTCs set, security indicator stays on or flashes) (3. 0L Engine (USA/Canada models))
- Engine starts but stalls immediately (MIL works OK, no DTCs set, security indicator stays on or flashes) (3. 5L Engine (USA/Canada models))
- Engine will not start (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- Engine will not start (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- Engine will not start (MIL works OK, no DTCs set, security indicator stays on or flashes) (3. 0L Engine (USA/Canada models))
- Engine will not start (MIL works OK, no DTCs set, security indicator stays on or flashes) (3. 5L Engine (USA/Canada models))
- Engine will not start and HDS does not communicate with the PCM (MIL comes on and stays on, no DTCs set) (3. 0L Engine (USA/Canada models))
- Engine will not start and HDS does not communicate with the PCM (MIL comes on and stays on, no DTCs set) (3. 5L Engine (USA/Canada models))
- HDS does not communicate with the PCM or the vehicle (3. 0L Engine (USA/Canada models))
- HDS does not communicate with the PCM or the vehicle (3. 5L Engine (USA/Canada models))
- Idle speed fluctuates (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- Idle speed fluctuates (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- Idle stop time is short
- Low power (MIL works OK, no DTCs set) (3. 0L Engine (USA/Canada models))
- Low power (MIL works OK, no DTCs set) (3. 5L Engine (USA/Canada models))
- MIL comes on and stays on, or never comes on at all, no DTCs set (3. 0L Engine (USA/Canada models))
- MIL comes on and stays on, or never comes on at all, no DTCs set (3. 5L Engine (USA/Canada models))
- Starter system warning message stays on (no DTCs set)