Problem Symptoms Table
HINT:
Use the table below to help determine the cause of the problem. The potential cases 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.
SFI SYSTEM
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| Engine does not crank (Does not start) | 1. Check push-start function initialization | INITIALIZATION |
| 2. Immobilizer System | PROBLEM SYMPTOMS TABLE | |
| 3. ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| 4. VC output circuit | VC OUTPUT CIRCUIT | |
| 5. Cranking holding function circuit | CRANKING HOLDING FUNCTION CIRCUIT | |
| 6. Starter | INSPECTION | |
| No initial combustion (Does not start) | 1. ECM power source circuit | ECM POWER SOURCE CIRCUIT |
| 2. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. ECM | TERMINALS OF ECM | |
| Engine cranks normally but difficult to start | 1. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT |
| 2. Compression | ON-VEHICLE INSPECTION | |
| Difficult to start with cold engine | 1. Cranking holding function circuit | CRANKING HOLDING FUNCTION CIRCUIT |
| 2. Ignition system | ON-VEHICLE INSPECTION | |
| 3. Spark plug | ON-VEHICLE INSPECTION | |
| 4. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 5. Injector | INSTALLATION | |
| Difficult to start with worm engine | 1. Cranking holding function circuit | CRANKING HOLDING FUNCTION CIRCUIT |
| 2. Injector | INSTALLATION | |
| 3. Ignition system | ON-VEHICLE INSPECTION | |
| 4. Spark plug | ON-VEHICLE INSPECTION | |
| 5. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| High engine idle speed (Poor idling) | 1. ECM power source circuit | ECM POWER SOURCE CIRCUIT |
| 2. A/C signal circuit (compressor circuit) | - | |
| 3. Electronic throttle control system | DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; DTC P0122 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT LOW INPUT; DTC P0123 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT HIGH INPUT; DTC P0220 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT; DTC P0222 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT LOW INPUT; DTC P0223 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT HIGH INPUT; DTC P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION | |
| 4. Air induction system | - | |
| 5. PCV hose | - | |
| Low engine idle speed (Poor idling) | 1. A/C signal circuit (compressor circuit) | - |
| 2. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. Electronic throttle control system | ON-VEHICLE INSPECTION | |
| 4. Air induction system | - | |
| 5. PCV hose | - | |
| Rough idling (Poor idling) | 1. Compression | ON-VEHICLE INSPECTION |
| 2. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. Electronic throttle control system | ON-VEHICLE INSPECTION | |
| 4. Air induction system | - | |
| 5. PCV hose | - | |
| Hunting (Poor idling) | 1. ECM power source circuit | ECM POWER SOURCE CIRCUIT |
| 2. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. Spark plug | ON-VEHICLE INSPECTION | |
| 4. Ignition system | ON-VEHICLE INSPECTION | |
| 5. Injector | INSTALLATION | |
| 6. Electronic throttle control system | ON-VEHICLE INSPECTION | |
| 7. Air induction system | - | |
| 8. PCV hose | - | |
| Hesitation/ Poor acceleration (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 | INSTALLATION | |
| Surging (Poor driveability) | 1. Spark plug | ON-VEHICLE INSPECTION |
| 2. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. Ignition system | ON-VEHICLE INSPECTION | |
| 4. Injector | INSTALLATION | |
| Engine stalls soon after starting | 1. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT |
| 2. Spark plug | ON-VEHICLE INSPECTION | |
| 3. Ignition system | ON-VEHICLE INSPECTION | |
| 4. Injector | INSTALLATION | |
| 5. Vacuum sensor circuit | - | |
| Engine stalls during A/C operation | 1. A/C signal circuit (Compressor circuit) | - |
| 2. ECM | TERMINALS OF ECM | |
| 3. Cold start injector | INSTALLATION | |
| Unable/difficult refuel | Refueling valve (canister) | - |