Problem Symptoms Table
HINT:
When a malfunction is not confirmed by a DTC (Diagnostic Trouble Code) check and the cause of problem cannot be identified through a basic inspection, troubleshoot according to the priority order indicated in the table below.
SFI SYSTEM
SFI SYSTEM PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | Reference |
|---|---|---|
| w/o Smart Key System: Engine does not crank (Does not start) | 1. Smart key system | HOW TO PROCEED WITH TROUBLESHOOTING |
| 2. Immobiliser system (w/o smart key system) | HOW TO PROCEED WITH TROUBLESHOOTING | |
| 3. Starter signal circuit | DTC P0617 STARTER RELAY CIRCUIT HIGH | |
| 4. Starter | REMOVAL | |
| 5. STARTER relay | ON-VEHICLE INSPECTION | |
| w/ Smart Key System: Engine does not crank (Does not start) | 1. Smart key system | HOW TO PROCEED WITH TROUBLESHOOTING |
| 2. Immobiliser system (w/o smart key system) | HOW TO PROCEED WITH TROUBLESHOOTING | |
| 3. Cranking holding function circuit | CRANKING HOLDING FUNCTION CIRCUIT | |
| 4. Starter signal circuit | DTC P0617 STARTER RELAY CIRCUIT HIGH | |
| 5. Starter | REMOVAL | |
| 6. STARTER relay | ON-VEHICLE INSPECTION | |
| 7. ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| 8. ECM | - | |
| No initial combustion (Does not start) | 1. ECM power source circuit | ECM POWER SOURCE CIRCUIT |
| 2. Ignition system | ON-VEHICLE INSPECTION | |
| 3. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 4. Injector | ON-VEHICLE INSPECTION | |
| 5. Crankshaft position sensor | CRANKSHAFT POSITION SENSOR | |
| 6. ECM | - | |
| Engine cranks normally but difficult to start | 1. Electronic Throttle Control System (ETCS) | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| 2. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. Ignition system | ON-VEHICLE INSPECTION | |
| 4. Spark plug | ON-VEHICLE INSPECTION | |
| 5. Compression | ON-VEHICLE INSPECTION | |
| 6. Injector | ON-VEHICLE INSPECTION | |
| 7. Crankshaft position sensor | CRANKSHAFT POSITION SENSOR | |
| Difficult to start with cold engine | 1. Starter signal circuit | DTC P0617 STARTER RELAY CIRCUIT HIGH |
| 2. Electronic Throttle Control System (ETCS) | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH | |
| 3. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 4. Spark plug | ON-VEHICLE INSPECTION | |
| 5. Ignition system | ON-VEHICLE INSPECTION | |
| 6. Injector | ON-VEHICLE INSPECTION | |
| 7. Engine coolant temperature sensor | ENGINE COOLANT TEMPERATURE SENSOR | |
| Difficult to start with warm engine | 1. Starter signal circuit | DTC P0617 STARTER RELAY CIRCUIT HIGH |
| 2. Electronic Throttle Control System (ETCS) | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH | |
| 3. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 4. Spark plug | ON-VEHICLE INSPECTION | |
| 5. Ignition system | ON-VEHICLE INSPECTION | |
| 6. Injector | ON-VEHICLE INSPECTION | |
| 7. Engine coolant temperature sensor | ENGINE COOLANT TEMPERATURE SENSOR | |
| High engine idling speed (Poor idling) | 1. Electronic Throttle Control System (ETCS) | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| 2. ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| 3. A/C signal circuit (Compressor circuit) | - | |
| 4. Acoustic Control Induction System (ACIS) | ACIS CONTROL CIRCUIT | |
| 5. PCV hose | ON-VEHICLE INSPECTION | |
| 6. ECM | - | |
| Low engine idling speed (Poor idling) | 1. Electronic Throttle Control System (ETCS) | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| 2. ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| 3. A/C signal circuit (Compressor circuit) | - | |
| 4. Acoustic Control Induction System (ACIS) | ACIS CONTROL CIRCUIT | |
| 5. PCV hose | ON-VEHICLE INSPECTION | |
| 6. Injector | ON-VEHICLE INSPECTION | |
| 7. ECM | - | |
| Rough idling (Poor idling) | 1. Electronic Throttle Control System (ETCS) | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| 2. Injector | ON-VEHICLE INSPECTION | |
| 3. Ignition system | ON-VEHICLE INSPECTION | |
| 4. Compression | ON-VEHICLE INSPECTION | |
| 5. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 6. Spark plug | ON-VEHICLE INSPECTION | |
| 7. Acoustic Control Induction System (ACIS) | ACIS CONTROL CIRCUIT | |
| 8. PCV hose | ON-VEHICLE INSPECTION | |
| Hunting (Poor idling) | 1. Electronic Throttle Control System (ETCS) | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| 2. ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| 3. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 4. Spark plug | ON-VEHICLE INSPECTION | |
| 5. Ignition system | ON-VEHICLE INSPECTION | |
| 6. Injector | ON-VEHICLE INSPECTION | |
| 7. Acoustic Control Induction System (ACIS) | ACIS CONTROL CIRCUIT | |
| 8. PCV hose | ON-VEHICLE INSPECTION | |
| Hesitation/Poor acceleration (Poor driveability) | 1. Injector | ON-VEHICLE INSPECTION |
| 2. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. Ignition system | ON-VEHICLE INSPECTION | |
| 4. Spark plug | ON-VEHICLE INSPECTION | |
| 5. Air Intake Control System (AICS) | ACIS CONTROL CIRCUIT | |
| 6. A/T faulty | HOW TO PROCEED WITH TROUBLESHOOTING | |
| Surging (Poor driveability) | 1. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT |
| 2. Spark plug | ON-VEHICLE INSPECTION | |
| 3. Ignition system | ON-VEHICLE INSPECTION | |
| 4. Injector | ON-VEHICLE INSPECTION | |
| Engine stalls soon after starting | 1. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT |
| 2. Electronic Throttle Control System (ETCS) | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH | |
| 3. Crankshaft position sensor | CRANKSHAFT POSITION SENSOR | |
| 4. Spark plug | ON-VEHICLE INSPECTION | |
| 5. Ignition system | ON-VEHICLE INSPECTION | |
| 6. Injector | ON-VEHICLE INSPECTION | |
| Engine stalls during A/C operation | 1. A/C signal circuit | - |
| 2. ECM | - | |
| Unable/difficult to refuel | Refueling valve (canister) | - |
| Engine vibrates frequently when idling (Active Control engine Mount (ACM) system does not operate) | Active control engine mount circuit | ACTIVE CONTROL ENGINE MOUNT SYSTEM |