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Home >> Toyota >> 2009 >> Corolla Base, 1.8 L, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2ZR-FE) - SFI System Diagnostic Introduction, Precautions, Problem Symptoms Table, Fail-Safe Chart, Diagnostic Trouble Code (DTC) Chart >> SFI System >> Problem Symptoms Table
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Problem Symptoms Table

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SFI System 

SFI SYSTEM SYMPTOM CHART

Symptom Suspected Area See
Engine does not crank (Does not start) Battery PROBLEM SYMPTOMS TABLE
Immobiliser system (w/ SMART KEY SYSTEM) PROBLEM SYMPTOMS TABLE
Immobiliser system (w/o SMART KEY SYSTEM) PROBLEM SYMPTOMS TABLE
Cranking holding function circuit Cranking Holding Function Circuit
Starter INSPECTION
Clutch pedal switch REMOVAL
No initial combustion (Does not start) ECM power source circuit ECM Power Source Circuit
Camshaft position sensor (for intake camshaft) DTC P0340 CAMSHAFT POSITION SENSOR CIRCUIT MALFUNCTION; DTC P0342 CAMSHAFT POSITION SENSOR DTC P0342 CAMSHAFT POSITION SENSOR "A" CIRCUIT LOW INPUT (BANK 1 OR SINGLE SENSOR); DTC P0343 CAMSHAFT POSITION SENSOR DTC P0343 CAMSHAFT POSITION SENSOR "A" Circuit High Input (Bank 1 or Single Sensor)
Camshaft position sensor (for exhaust camshaft) DTC P0365 CAMSHAFT POSITION SENSOR "B" CIRCUIT (BANK 1); DTC P0367 CAMSHAFT POSITION SENSOR DTC P0367 CAMSHAFT POSITION SENSOR "B" CIRCUIT LOW INPUT (BANK 1); DTC P0368 CAMSHAFT POSITION SENSOR DTC P0368 CAMSHAFT POSITION SENSOR "B" Circuit High Input (Bank 1)
VC output circuit VC Output Circuit
Crankshaft position sensor INSPECTION
Fuel pump control circuit Fuel Pump Control Circuit
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit Fuel Injector Circuit
Valve timing DISASSEMBLY
ECM REMOVAL
Engine cranks normally but difficult to start Fuel pump control circuit Fuel Pump Control Circuit
Fuel pump INSPECTION
Engine coolant temperature sensor INSPECTION
Ignition system ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Injector INSPECTION
Compression ON-VEHICLE INSPECTION
Intake system ON-VEHICLE INSPECTION
Fuel injector circuit Fuel Injector Circuit
Throttle body ON-VEHICLE INSPECTION
Incomplete intermittent combustion occurs (Does not start) Fuel pump control circuit Fuel Pump Control Circuit
Fuel pump INSPECTION
Ignition circuit DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL DTC P0354 IGNITION COIL "D" Primary / Secondary Circuit
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit Fuel Injector Circuit
ECM power source circuit ECM Power Source Circuit
Crankshaft position sensor INSPECTION
Camshaft position sensor (for intake camshaft) DTC P0340 CAMSHAFT POSITION SENSOR CIRCUIT MALFUNCTION; DTC P0342 CAMSHAFT POSITION SENSOR DTC P0342 CAMSHAFT POSITION SENSOR "A" CIRCUIT LOW INPUT (BANK 1 OR SINGLE SENSOR); DTC P0343 CAMSHAFT POSITION SENSOR DTC P0343 CAMSHAFT POSITION SENSOR "A" Circuit High Input (Bank 1 or Single Sensor)
Camshaft position sensor (for exhaust camshaft) DTC P0365 CAMSHAFT POSITION SENSOR "B" CIRCUIT (BANK 1); DTC P0367 CAMSHAFT POSITION SENSOR DTC P0367 CAMSHAFT POSITION SENSOR "B" CIRCUIT LOW INPUT (BANK 1); DTC P0368 CAMSHAFT POSITION SENSOR DTC P0368 CAMSHAFT POSITION SENSOR "B" Circuit High Input (Bank 1)
Valve timing DISASSEMBLY
High engine idle speed A/C signal circuit (for manual air conditioning system) PROBLEM SYMPTOMS TABLE
A/C signal circuit (for automatiic air conditioning system) CUSTOMIZE PARAMETERS
Throttle body INSPECTION
Intake system ON-VEHICLE INSPECTION
Engine coolant temperature sensor INSPECTION
PCV valve and hose ON-VEHICLE INSPECTION
ECM power source circuit ECM Power Source Circuit
Low engine idle speed (Poor idle) Fuel pump control circuit Fuel Pump Control Circuit
Fuel pump INSPECTION
Throttle body INSPECTION
A/C signal circuit (for manual air conditioning system) PROBLEM SYMPTOMS TABLE
A/C signal circuit (for automatiic air conditioning system) CUSTOMIZE PARAMETERS
Intake system ON-VEHICLE INSPECTION
PCV valve and hose ON-VEHICLE INSPECTION
Rough idle Compression ON-VEHICLE INSPECTION
Air fuel ratio sensor INSPECTION
Heated oxygen sensor INSPECTION
Mass air flow meter MASS AIR FLOW METER
Ignition system ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Intake system ON-VEHICLE INSPECTION
Throttle body ON-VEHICLE INSPECTION
PCV valve and hose ON-VEHICLE INSPECTION
Fuel injector circuit Fuel Injector Circuit
Fuel pump control circuit Fuel Pump Control Circuit
Fuel pump INSPECTION
Idle hunting Throttle body ON-VEHICLE INSPECTION
Intake system ON-VEHICLE INSPECTION
PCV valve and hose ON-VEHICLE INSPECTION
Air fuel ratio sensor INSPECTION
Mass air flow meter MASS AIR FLOW METER
Hesitation/Poor acceleration Fuel pump control circuit Fuel Pump Control Circuit
Fuel pump INSPECTION
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit Fuel Injector Circuit
ECM power source circuit ECM Power Source Circuit
Mass air flow meter MASS AIR FLOW METER
Throttle body INSPECTION
Intake system ON-VEHICLE INSPECTION
Valve timing DISASSEMBLY
Compression ON-VEHICLE INSPECTION
Surging (Poor driveability) Spark plug ON-VEHICLE INSPECTION
Fuel pump control circuit Fuel Pump Control Circuit
Fuel pump INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit Fuel Injector Circuit
ECM power source circuit ECM Power Source Circuit
Mass air flow meter MASS AIR FLOW METER
Variable valve timing (VVT) system DTC P0011 CAMSHAFT POSITION "A" -TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1); DTC P0012 CAMSHAFT POSITION DTC P0012 CAMSHAFT POSITION "A" - Timing Over-Retarded (Bank 1)
Compression ON-VEHICLE INSPECTION
Engine stalls soon after starting Fuel pump control circuit Fuel Pump Control Circuit
Fuel pump INSPECTION
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector circuit Fuel Injector Circuit
ECM power source circuit ECM Power Source Circuit
Mass airflow meter MASS AIR FLOW METER
Variable valve timing (VVT) system DTC P0011 CAMSHAFT POSITION "A" -TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1); DTC P0012 CAMSHAFT POSITION DTC P0012 CAMSHAFT POSITION "A" - Timing Over-Retarded (Bank 1)
Throttle body ON-VEHICLE INSPECTION
Intake system ON-VEHICLE INSPECTION
PCV valve and hose ON-VEHICLE INSPECTION
Compression ON-VEHICLE INSPECTION
Engine stalls only during A/C operation A/C signal circuit (for manual air conditioning system) PROBLEM SYMPTOMS TABLE
A/C signal circuit (for automatiic air conditioning system) CUSTOMIZE PARAMETERS
ECM REMOVAL
Unable/difficult to refuel Refueling valve (canister) REMOVAL