Problem Symptoms Table [08/2019 - 08/2022]
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 | Link |
|---|---|---|
| Engine does not crank (Does not start) | Battery | Refer to ON-VEHICLE INSPECTION [08/2019 - ] |
| Starter assembly | Refer to INSPECTION [08/2015 - ] | |
| Start signal circuit | Refer to Starter Signal Circuit [08/2019 - 08/2022] | |
| VC output circuit | Refer to VC Output Circuit [08/2019 - 08/2022] | |
| Park/neutral position switch (for 2WD) | Refer to INSPECTION [08/2015 - ] | |
| Park/neutral position switch (for 4WD) | Refer to INSPECTION [08/2015 - ] | |
| No initial combustion (Does not start) | Immobilizer system (w/o Smart Key System) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - 08/2022] |
| Immobilizer system (w/ Smart Key System) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - 08/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2021 - 08/2022] | |
| ECM power source circuit | Refer to ECM Power Source Circuit [08/2019 - 08/2022] | |
| VC output circuit | Refer to VC Output Circuit [08/2019 - 08/2022] | |
| Ignition system | Refer to PROCEDURE - Step 1 | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] | |
| Fuel injector assembly | Refer to INSPECTION [08/2015 - ] | |
| Crankshaft position sensor | Refer to INSPECTION [08/2015 - ] | |
| Intake system | Refer to PROCEDURE - Step 1 | |
| Valve timing | Refer to PROCEDURE - Step 4 | |
| No. 1 valve rocker arm sub-assembly* | Refer to REMOVAL [08/2015 - ] | |
| Engine cranks normally but difficult to start | ECM power source circuit | Refer to ECM Power Source Circuit [08/2019 - 08/2022] |
| Engine difficult to start | Refer to Engine Difficult to Start [08/2019 - ] | |
| Throttle body with motor assembly | Refer to INSPECTION [08/2015 - ] | |
| Fuel pump | Refer to INSPECTION [08/2015 - ] | |
| Engine coolant temperature sensor | Refer to INSPECTION [08/2015 - ] | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] | |
| Ignition system | Refer to PROCEDURE - Step 1 | |
| Spark plug | Refer to PROCEDURE - Step 2 | |
| Compression | Refer to ON-VEHICLE INSPECTION [08/2019 - ] | |
| Fuel injector assembly | Refer to INSPECTION [08/2015 - ] | |
| Crankshaft position sensor | Refer to INSPECTION [08/2015 - ] | |
| Intake system | Refer to PROCEDURE - Step 1 | |
| Valve timing | Refer to PROCEDURE - Step 4 | |
| No. 1 valve rocker arm sub-assembly* | Refer to REMOVAL [08/2015 - ] | |
| Incomplete intermittent combustion occurs (Does not start) | Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] |
| Ignition system | Refer to PROCEDURE - Step 1 | |
| Fuel injector assembly | Refer to INSPECTION [08/2015 - ] | |
| Crankshaft position sensor | Refer to INSPECTION [08/2015 - ] | |
| Intake system | Refer to PROCEDURE - Step 1 | |
| Valve timing | Refer to PROCEDURE - Step 4 | |
| High engine speed | Throttle body with motor assembly | Refer to INSPECTION [08/2015 - ] |
| ECM power source circuit | Refer to ECM Power Source Circuit [08/2019 - 08/2022] | |
| PCV hose | Refer to COMPONENTS [08/2015 - ] | |
| PCV valve | Refer to INSPECTION [08/2015 - ] | |
| Low engine speed (Poor idle) | Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] |
| Throttle body with motor assembly | Refer to INSPECTION [08/2015 - ] | |
| Fuel injector assembly | Refer to INSPECTION [08/2015 - ] | |
| Fuel pump | Refer to INSPECTION [08/2015 - ] | |
| PCV hose | Refer to COMPONENTS [08/2015 - ] | |
| PCV valve | Refer to INSPECTION [08/2015 - ] | |
| Intake system | Refer to PROCEDURE - Step 1 | |
| Rough idle | Rough idling | Refer to Rough Idling [08/2019 - ] |
| Throttle body with motor assembly | Refer to INSPECTION [08/2015 - ] | |
| Fuel injector assembly | Refer to INSPECTION [08/2015 - ] | |
| Fuel pump | Refer to INSPECTION [08/2015 - ] | |
| Ignition system | Refer to PROCEDURE - Step 1 | |
| Compression | Refer to ON-VEHICLE INSPECTION [08/2019 - ] | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] | |
| Spark plug | Refer to PROCEDURE - Step 2 | |
| Intake system | Refer to PROCEDURE - Step 1 | |
| Valve timing | Refer to PROCEDURE - Step 4 | |
| No. 1 valve rocker arm sub-assembly* | Refer to REMOVAL [08/2015 - ] | |
| Hunting (Poor idle) | Throttle body with motor assembly | Refer to INSPECTION [08/2015 - ] |
| ECM power source circuit | Refer to ECM Power Source Circuit [08/2019 - 08/2022] | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] | |
| Spark plug | Refer to PROCEDURE - Step 2 | |
| Intake system | Refer to PROCEDURE - Step 1 | |
| Drive start control | Refer to Drive Start Control [08/2019 - ] | |
| Hesitation/Poor acceleration (Poor driveability) | Fuel injector assembly | Refer to INSPECTION [08/2015 - ] |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] | |
| Fuel pump | Refer to INSPECTION [08/2015 - ] | |
| Ignition system | Refer to PROCEDURE - Step 1 | |
| Spark plug | Refer to PROCEDURE - Step 2 | |
| Intake system | Refer to PROCEDURE - Step 1 | |
| Valve timing | Refer to PROCEDURE - Step 4 | |
| No. 1 valve rocker arm sub-assembly* | Refer to REMOVAL [08/2015 - ] | |
| Brake override system | Refer to Brake Override System [08/2019 - ] | |
| Drive start control | Refer to Drive Start Control [08/2019 - ] | |
| Lack of power | Lack of power | Refer to Lack of Power [08/2019 - ] |
| Surging (Poor driveability) | Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] |
| Spark plug | Refer to PROCEDURE - Step 2 | |
| Fuel injector assembly | Refer to INSPECTION [08/2015 - ] | |
| No. 1 valve rocker arm sub-assembly* | Refer to REMOVAL [08/2015 - ] | |
| Engine stalls soon after starting | Engine stalls | Refer to Engine Stalls [08/2019 - ] |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit [08/2019 - ] | |
| Throttle body with motor assembly | Refer to INSPECTION [08/2015 - ] | |
| Crankshaft position sensor | Refer to INSPECTION [08/2015 - ] | |
| Ignition system | Refer to PROCEDURE - Step 1 | |
| Fuel pump | Refer to INSPECTION [08/2015 - ] | |
| Intake system | Refer to PROCEDURE - Step 1 | |
| Valve timing | Refer to PROCEDURE - Step 4 | |
| Engine stalls soon after slow down | Engine stalls | Refer to Engine Stalls [08/2019 - ] |
| Fuel injector assembly | Refer to INSPECTION [08/2015 - ] | |
| Throttle body with motor assembly | Refer to INSPECTION [08/2015 - ] | |
| ECM | Refer to TERMINALS OF ECM [08/2019 - 08/2022] | |
| Crankshaft position sensor | Refer to INSPECTION [08/2015 - ] | |
| Ignition system | Refer to PROCEDURE - Step 1 | |
| Unable/difficult to refuel | Fuel system (canister, roll-over valve, fuel tank, etc.) | - |
HINT:
*: Check "Fuel Cut Elps Time" in the Data List. If the elapsed time is over 0 sec, then the engine speed is high (the engine speed at which fuel cut occurs + 500 rpm or more). In this situation, there is a possibility that a No. 1 valve rocker arm sub-assembly will become loose and malfunction, check that the No. 1 valve rocker arm sub-assemblies are properly installed.