Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSHONDA2020PILOT LX, FWDREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICALENGINE CONTROL SYSTEM / ENGINE MECHANICAL - SERVICE, TESTING & TROUBLESHOOTING
2020 Honda Pilot LX, FWD
Engine Control System / Engine Mechanical - Service, Testing & Troubleshooting
2020 Honda Pilot LX, FWDSECTION Engine Control System / Engine Mechanical - Service, Testing & Troubleshooting
- Component Location Index
- Check
- Replacement
- System Description
- Auto Idle Stop (2016 2017 2018)
- Auto Idle Stop (2019 2020 2021)
- Overview
- Auto Idle Stop Control Signal
- Detail Information of the Control or Communication Signal
- System Malfunction Signal
- System malfunction indications for prohibiting the auto idle stop
- Master Cylinder Fluid Pressure Information (lack of brake pedal force)
- Idle Stop Permission Signal from the Climate Control System
- Transmitting and received signals to/from climate control unit
- Starter Operating Command Signal
- 12 Volt Battery Status Information
- DC-DC Converter Unit Quality Information
- Simple Circuit Diagram for Description
- Pressurization Graphic by the DC-DC converter
- Auto Idle Stop - Operation Conditions (2016 2017 2018)
- Auto Idle Stop - Operation Conditions (2019 2020)
- Auto Idle Stop - Operation Conditions (2021)
- Catalytic Converter - Overview
- EGR - Overview
- EVAP
- Electronic Throttle Control
- PCV - Overview
- PGM-FI - Components
- PGM-FI - Electronic Control
- PGM-FI - Injection Control
- PGM-FI - OBD
- PGM-FI - On-Board Snapshot
- VTEC/Variable Cylinder Management (VCM)
- General Information
- Engine Configuration
- How To Set Readiness Codes (2018 2019 2020 2021)
- 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
- Under-Hood Emission Control Label (2017)
- Rewrite
- Repair / Regeneration
- Removal / Installation / Inspection
- How To Information
- Connect The HDS
- Set Readiness Codes (2016 2017)
- 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
- Learning / Reset / Clear
- Adjustment
- Troubleshooting
- Symptom Troubleshooting
- Symptom Troubleshooting Index For Viewer
- AFTER WARMING UP, IDLE SPEED IS ABOVE SPECIFICATIONS WITHOUT LOAD (MIL works OK, no DTCs set)
- AFTER WARMING UP, IDLE SPEED IS BELOW SPECIFICATIONS WITHOUT LOAD (MIL works OK, no DTCs set)
- COLD FAST IDLE TOO HIGH (MIL works OK, no DTCs set)
- COLD FAST IDLE TOO LOW (MIL works OK, no DTCs set)
- DIFFICULT TO REFUEL (MIL works OK, no DTCs set)
- ENGINE IS HARD TO START (MIL works OK, no DTCs set)
- ENGINE STALLS (MIL works OK, no DTCs set)
- ENGINE STARTS BUT STALLS IMMEDIATELY (MIL works OK, no DTCs set, immobilizer indicator stays on or flashes)
- ENGINE WILL NOT START (MIL works OK, no DTCs set)
- ENGINE WILL NOT START (MIL works OK, no DTCs set, immobilizer indicator stays on or flashes)
- ENGINE WILL NOT START AND HDS DOES NOT COMMUNICATE WITH THE PCM (MIL Comes On And Stays On, no DTCs set)
- HDS Does Not Communicate With The Pcm Or The Vehicle
- IDLE SPEED FLUCTUATES (MIL works OK, no DTCs set)
- Idle Stop Time Is Short
- LOW POWER (MIL works OK, no DTCs set)
- Mil Comes On And Stays On, Or Never Comes On At All, No DTCS Set
- WITH AUTO IDLE STOP SYSTEM: Vehicle rolls backward when starting on the steep hill (MIL works OK, no DTCs set)
- Connector For Inputs And Outputs View
- Test
- Inspection
- Symptom Troubleshooting Index
- Servicing
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.