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.
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HOMESERVICE MANUALSTOYOTA2009SEQUOIA LIMITED, 5.7 Y, RWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM (3UR-FE) - SFI SYSTEM, PRECAUTIONS, PARTS LOCATION, SYSTEM DIAGRAM, BASIC INSPECTION, DIAGNOSIS SYSTEM, FREEZE FRAME DATA, DIAGNOSTIC TROUBLE CODE CHARTSFI SYSTEMPROBLEM SYMPTOMS TABLE
2009 Toyota Sequoia Limited, 5.7 Y, RWD
Problem Symptoms Table
2009 Toyota Sequoia Limited, 5.7 Y, RWDSECTION Problem Symptoms Table
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
SFI System
PROBLEM SYMPTOMSSymptom Suspected Area See information Engine does not crank (Does not start) Battery ON-VEHICLE INSPECTION Starter INSPECTION Cranking Holding Function Circuit CRANKING HOLDING FUNCTION CIRCUIT Starter relay ON-VEHICLE INSPECTION Park/Neutral Position Switch (for 2WD) ON-VEHICLE INSPECTION Park/Neutral Position Switch (for 4WD) ON-VEHICLE INSPECTION Immobiliser System HOW TO PROCEED WITH TROUBLESHOOTING No initial combustion (Does not start) ECM Power Source Circuit ECM POWER SOURCE CIRCUIT Crankshaft Position Sensor DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT; DTC P0337 CRANKSHAFT POSITION SENSOR "A" CIRCUIT LOW INPUT; DTC P0338 CRANKSHAFT POSITION SENSOR "A" CIRCUIT HIGH INPUT; DTC P0339 CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT Camshaft Position Sensor DTC P1340 CAMSHAFT POSITION SENSOR "A" (BANK 1 SENSOR 2); DTC P1342 CAMSHAFT POSITION SENSOR "A" LOW INPUT (MRE); DTC P1343 CAMSHAFT POSITION SENSOR "A" HIGH INPUT (MRE) Ignition System IGNITION SYSTEM Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT Fuel Injector Circuit FUEL INJECTOR CIRCUIT ECM TERMINALS OF ECM VC Output Circuit VC OUTPUT CIRCUIT Engine cranks normally but difficult to start Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT Compression ON-VEHICLE INSPECTION Difficult to start with cold engine Ignition System IGNITION SYSTEM Spark Plug IGNITION SYSTEM Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT Injector INSPECTION Difficult to start with warm engine Injector INSPECTION Ignition System IGNITION SYSTEM Spark Plug IGNITION SYSTEM Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT High engine idle speed Electronic Throttle Control System THROTTLE BODY A/C Signal Circuit TERMINALS OF ECU ECM Power Source Circuit ECM POWER SOURCE CIRCUIT Acoustic Control Induction System (ACIS) ACIS CONTROL CIRCUIT Low engine idle speed (Poor idling) Electronic Throttle Control System THROTTLE BODY A/C Signal Circuit TERMINALS OF ECU Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT Air Induction System ON-VEHICLE INSPECTION Acoustic Control Induction System (ACIS) ACIS CONTROL CIRCUIT PCV Hose ON-VEHICLE INSPECTION Rough idling Compression ON-VEHICLE INSPECTION Spark Plug IGNITION SYSTEM Injector INSPECTION Ignition System IGNITION SYSTEM Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT Electronic Throttle Control System THROTTLE BODY Air Induction System ON-VEHICLE INSPECTION Acoustic Control Induction System (ACIS) ACIS CONTROL CIRCUIT PCV Hose ON-VEHICLE INSPECTION Mass Air Flow Meter MASS AIR FLOW METER Idle hunting Electronic Throttle Control System THROTTLE BODY Air Induction System ON-VEHICLE INSPECTION ECM Power Source Circuit ECM POWER SOURCE CIRCUIT Acoustic Control Induction System (ACIS) ACIS CONTROL CIRCUIT Hesitation/Poor acceleration Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT Spark Plug IGNITION SYSTEM Ignition System IGNITION SYSTEM Injector INSPECTION Mass Air Flow Meter MASS AIR FLOW METER Electronic Throttle Control System THROTTLE BODY Air Induction System ON-VEHICLE INSPECTION Compression ON-VEHICLE INSPECTION Surging (Poor driveability) Spark Plug IGNITION SYSTEM Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT Ignition System IGNITION SYSTEM Injector INSPECTION Mass Air Flow Meter MASS AIR FLOW METER Variable Valve Timing System CAMSHAFT OIL CONTROL VALVE Compression ON-VEHICLE INSPECTION Engine stalls soon after starting Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT Spark Plug IGNITION SYSTEM Ignition System IGNITION SYSTEM Injector INSPECTION Variable Valve Timing System CAMSHAFT OIL CONTROL VALVE Electronic Throttle Control System THROTTLE BODY Air Induction System ON-VEHICLE INSPECTION PCV Hose ON-VEHICLE INSPECTION Compression ON-VEHICLE INSPECTION Engine stalls only during A/C operation A/C Signal Circuit TERMINALS OF ECU ECM TERMINALS OF ECM Unable/difficult to refuel Refueling Valve (Canister) -
RENDER: 1.0x
NO RELATED
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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.