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
| Symptom | Suspected Area | See |
|---|---|---|
| Engine does not crank (Does not start) | Battery | Refer to ON-VEHICLE INSPECTION - Step 1 |
| Start signal circuit | Refer to Starter Signal Circuit | |
| Starter assembly | Refer to INSPECTION | |
| Starter relay (ST) | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Park/neutral position switch (for 4WD) | Refer to INSPECTION - Step 1 | |
| Park/neutral position switch (for 2WD) | Refer to INSPECTION - Step 1 | |
| Immobiliser system (w/ Smart Key System) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Immobiliser system (w/o Smart Key System) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| No initial combustion (Does not start) | ECM power source circuit | Refer to ECM Power Source Circuit |
| Crankshaft position sensor | Refer to INSPECTION - Step 1 | |
| VVT sensor | Refer to DTC P0340: Camshaft Position Sensor Circuit Malfunction; DTC P0342: Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor); DTC P0343: Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor); DTC P0345: Camshaft Position Sensor "A" Circuit (Bank 2); DTC P0347: Camshaft Position Sensor "A" Circuit Low Input (Bank 2); DTC P0348: Camshaft Position Sensor "A" Circuit High Input (Bank 2) | |
| Ignition system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| ECM | Refer to TERMINALS OF ECM | |
| VC output circuit | Refer to VC Output Circuit | |
| Engine cranks normally but difficult to start | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 3 | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Difficult to start with cold engine | Ignition system | Refer to ON-VEHICLE INSPECTION - Step 1 |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Fuel injector assembly | Refer to INSPECTION | |
| Difficult to start with warm engine | Fuel injector assembly | Refer to INSPECTION |
| Ignition system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| High engine idle speed | Electronic throttle control system | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed |
| A/C signal circuit | - | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Low engine idle speed (Poor idling) | Electronic throttle control system | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed |
| A/C signal circuit | - | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Air induction system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| PCV hose | - | |
| Rough idling | Compression | Refer to ON-VEHICLE INSPECTION - Step 3 |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Fuel injector assembly | Refer to INSPECTION | |
| Ignition system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Electronic throttle control system | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed | |
| Air induction system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| PCV hose | - | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION | |
| Idle hunting | Electronic throttle control system | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed |
| Air induction system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Hesitation/poor acceleration | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Ignition system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Fuel injector assembly | Refer to INSPECTION | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION | |
| Electronic throttle control system | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed | |
| Air induction system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 3 | |
| Brake override system | Refer to Brake Override System | |
| Surging (Poor driveability) | Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Ignition system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Fuel injector assembly | Refer to INSPECTION | |
| Mass air flow meter | Refer to ON-VEHICLE INSPECTION | |
| Variable valve timing system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 3 | |
| Engine stalls soon after starting | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Ignition system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Fuel injector assembly | Refer to INSPECTION | |
| Variable valve timing system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| Electronic throttle control system | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed | |
| Air induction system | Refer to ON-VEHICLE INSPECTION - Step 1 | |
| PCV hose | - | |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 3 | |
| Engine stalls only during A/C operation | A/C signal circuit | - |
| ECM | Refer to TERMINALS OF ECM | |
| Unable/difficult to refuel | Fuel system (canister, roll-over valve, fuel tank, etc.) | Refer to INSPECTION - Step 1 |