Problem Symptoms Table [08/2012 - ]
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
| Symptom | Suspected Area | See |
|---|---|---|
| Engine does not crank (Does not start) | Battery | Refer to ON-VEHICLE INSPECTION [08/2012 - ] |
| VC output circuit (ECM 5 V output) | Refer to VC Output Circuit | |
| Cranking holding function circuit | Refer to Cranking Holding Function Circuit | |
| Smart access system with push button | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2012 - ] | |
| Starter assembly | Refer to INSPECTION [08/2012 - ] | |
| No initial combustion (Does not start) | Immobilizer system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2012 - ] |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| VC output circuit (ECM 5 V output) | Refer to VC Output Circuit | |
| Crankshaft position sensor | Refer to INSPECTION [08/2012 - ] | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Ignition system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Valve timing | Refer to PROCEDURE - Step 4 | |
| Engine cranks normally but difficult to start | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Fuel pump for high pressure | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Engine coolant temperature sensor | Refer to INSPECTION [08/2012 - ] | |
| Ignition system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Fuel injector assembly (for port injection) | Refer to INSPECTION [08/2012 - ] | |
| Fuel injector assembly (for direct injection) | Refer to INSPECTION [08/2012 - ] | |
| Compression | Refer to ON-VEHICLE INSPECTION [08/2012 - ] - Step 10 | |
| Intake system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Throttle body assembly | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Incomplete intermittent combustion occurs (Does not start) | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Ignition system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Fuel line | Refer to SYSTEM DIAGRAM [08/2012 - ] | |
| Fuel injector assembly (for port injection) | Refer to INSPECTION [08/2012 - ] | |
| Fuel injector assembly (for direct injection) | Refer to INSPECTION [08/2012 - ] | |
| Crankshaft position sensor | Refer to INSPECTION [08/2012 - ] | |
| High engine speed (Poor idle) | Air conditioning signal circuit | - |
| Throttle body assembly | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Engine coolant temperature sensor | Refer to INSPECTION [08/2012 - ] | |
| PCV hose | Refer to ON-VEHICLE INSPECTION [08/2012 - ] - Step 2 | |
| PCV system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Low engine speed (Poor idle) | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Fuel pump for high pressure | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Throttle body assembly control | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Intake system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| PCV hose | Refer to ON-VEHICLE INSPECTION [08/2012 - ] - Step 2 | |
| Rough idle | Compression (engine mechanical) | Refer to ON-VEHICLE INSPECTION [08/2012 - ] - Step 10 |
| Air fuel ratio sensor | Refer to INSPECTION [08/2012 - ] | |
| Heated oxygen sensor | Refer to INSPECTION [08/2012 - ] | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Ignition system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Air conditioning signal circuit | - | |
| Fuel line | Refer to SYSTEM DIAGRAM [08/2012 - ] | |
| Fuel pump for low pressure | Refer to INSPECTION [08/2012 - ] | |
| Fuel pump for high pressure | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Intake system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Throttle control system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| PCV hose | Refer to ON-VEHICLE INSPECTION [08/2012 - ] - Step 2 | |
| Hunting (Poor idle) | PCV hose | Refer to ON-VEHICLE INSPECTION [08/2012 - ] - Step 2 |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Air fuel ratio sensor | Refer to INSPECTION [08/2012 - ] | |
| Hesitation/Poor acceleration (Poor driveability) | Fuel line | Refer to SYSTEM DIAGRAM [08/2012 - ] |
| Fuel pump for low pressure | Refer to INSPECTION [08/2012 - ] | |
| Fuel pump for high pressure | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Throttle body assembly | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Knock control sensor | Refer to INSPECTION [08/2012 - ] | |
| Air intake control circuit | - | |
| Brake override system | Refer to Brake Override System | |
| Surging (Poor driveability) | Fuel line | Refer to SYSTEM DIAGRAM [08/2012 - ] |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Fuel pump for high pressure | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Ignition system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Fuel injector for port injection | Refer to INSPECTION [08/2012 - ] | |
| Fuel injector for direct injection | Refer to INSPECTION [08/2012 - ] | |
| Engine stalls soon after starting | Mass air flow meter | Refer to ON-VEHICLE INSPECTION [08/2012 - ] |
| Intake system | Refer to ON-VEHICLE INSPECTION [08/2012 - ] | |
| Fuel line | Refer to SYSTEM DIAGRAM [08/2012 - ] | |
| Unable/difficult to refuel | Fuel system (canister, refueling valve, roll over valve, fuel tank, etc.) | Refer to INSPECTION [08/2012 - ] |