Problem Symptoms Table
HINT:
- Use the table below to help determine the cause of the problem symptom. 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.
| Symptom | Suspected Area | See |
|---|---|---|
| Engine does not crank (Does not start) | Starter | Refer to INSPECTION |
| STARTER relay | Refer to INSPECTION - Step 1 | |
| Clutch start switch | Refer to ON-VEHICLE INSPECTION | |
| No initial combustion (Does not start) | ECM power source circuit | Refer to ECM Power Source Circuit |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| VC output circuit | Refer to VC Output Circuit | |
| Immobilizer System | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| ECM | Refer to TERMINALS OF ECM | |
| Engine cranks normally but difficult to start | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Compression | Refer to ON-VEHICLE INSPECTION - Step 9 | |
| Difficult to start with cold engine | Starter signal circuit | Refer to DTC P0617: Starter Relay Circuit High |
| Fuel pump control circuit | Refer to Fuel Pump Control Circuit | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Injector | Refer to INSPECTION - Step 1 | |
| Difficult to start with warm engine | Fuel injector circuit | Refer to Fuel Injector Circuit |
| Starter signal circuit | Refer to DTC P0617: Starter Relay Circuit High | |
| 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 | |
| Injector | Refer to INSPECTION - Step 1 | |
| High engine idling speed (Poor idling) | A/C signal circuit (compressor circuit) | Refer to TERMINALS OF ECU |
| ECM power source circuit | Refer to ECM Power Source Circuit | |
| Electronic throttle control system | Refer to DTC P2111: Throttle Actuator Control System - Stuck Open; DTC P2112: Throttle Actuator Control System - Stuck Closed | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| PCV hose | Refer to ON-VEHICLE INSPECTION - Step 3 | |
| Low engine idling speed (Poor idling) | A/C signal circuit (compressor circuit) | Refer to TERMINALS OF ECU |
| 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 | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| PCV hose | Refer to ON-VEHICLE INSPECTION - Step 3 | |
| Rough idling (Poor idling) | Compression | Refer to ON-VEHICLE INSPECTION - Step 9 |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| 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 | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| PCV hose | Refer to ON-VEHICLE INSPECTION - Step 3 | |
| Hunting (Poor idling) | ECM power source circuit | Refer to ECM Power Source Circuit |
| 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 | |
| Injector | Refer to 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 | |
| Intake system | Refer to ON-VEHICLE INSPECTION | |
| PCV hose | Refer to ON-VEHICLE INSPECTION - Step 3 | |
| Hesitation/ Poor acceleration (Poor driveability) | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| A/T faulty (A750E) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| A/T faulty (A750F) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| Injector | Refer to INSPECTION - Step 1 | |
| Brake override system | Refer to Brake Override System | |
| Surging (Poor driveability) | Fuel pump control circuit | Refer to Fuel Pump Control Circuit |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| Spark plug | Refer to ON-VEHICLE INSPECTION - Step 2 | |
| Ignition system | Refer to ON-VEHICLE INSPECTION | |
| Injector | Refer to INSPECTION - Step 1 | |
| 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 | |
| Fuel injector circuit | Refer to Fuel Injector Circuit | |
| Injector | Refer to INSPECTION - Step 1 | |
| Engine stalls during A/C operation | A/C signal circuit (Compressor circuit) | Refer to TERMINALS OF ECU |
| ECM | Refer to TERMINALS OF ECM | |
| Unable/difficult to refuel | Refueling valve (canister) | Refer to INSPECTION - Step 1 |