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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:

Symptom Suspected Area See
Engine does not crank (Does not start) 1. Immobilizer system Refer to HOW TO PROCEED WITH TROUBLESHOOTING
2. Cranking holding function circuit Refer to CRANKING HOLDING FUNCTION CIRCUIT
3. Starter signal circuit Refer to DTC P0617: Starter Relay Circuit High
4. Starter Refer to INSPECTION
5. STARTER relay Refer to ON-VEHICLE INSPECTION
6. ECM power source circuit Refer to ECM Power Source Circuit
7. ECM Refer to COMPONENTS
No initial combustion (Does not start) 1. ECM power source circuit Refer to ECM POWER SOURCE CIRCUIT
2. Ignition system Refer to ON-VEHICLE INSPECTION
3. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
4. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
5. Crank angle sensor Refer to INSPECTION
6. ECM Refer to COMPONENTS
Engine cranks normally but difficult to start 1. Electronic Throttle Control System (ETCS) Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
2. VC Output Circuit Refer to VC OUTPUT CIRCUIT
3. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
4. Ignition system Refer to ON-VEHICLE INSPECTION
5. Spark plug Refer to ON-VEHICLE INSPECTION - Step 2
6. Compression Refer to ON-VEHICLE INSPECTION - Step 9
7. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
8. Crank angle sensor Refer to INSPECTION
Difficult to start with cold engine 1. Starter signal circuit Refer to DTC P0617: Starter Relay Circuit High
2. VC Output Circuit Refer to VC Output Circuit
3. Electronic Throttle Control System (ETCS) Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
4. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
5. Spark plug Refer to ON-VEHICLE INSPECTION - Step 2
6. Ignition system Refer to ON-VEHICLE INSPECTION
7. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
8. Engine coolant temperature sensor Refer to INSPECTION
Difficult to start with warm engine 1. Starter signal circuit Refer to DTC P0617: Starter Relay Circuit High
2. VC Output Circuit Refer to VC Output Circuit
3. Electronic Throttle Control System (ETCS) Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
4. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
5. Spark plug Refer to ON-VEHICLE INSPECTION - Step 2
6. Ignition system Refer to ON-VEHICLE INSPECTION
7. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
8. Engine coolant temperature sensor Refer to INSPECTION
High engine idling speed (Poor idling) 1. Electronic Throttle Control System (ETCS) Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
2. ECM power source circuit Refer to ECM Power Source Circuit
3. A/C signal circuit (Compressor circuit) -
4. Acoustic Control Induction System (ACIS) Refer to ACIS Control Circuit
5. PCV hose -
6. ECM Refer to COMPONENTS
Low engine idling speed (Poor idling) 1. Electronic Throttle Control System (ETCS) Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
2. ECM power source circuit Refer to ECM Power Source Circuit
3. A/C signal circuit (Compressor circuit) -
4. Acoustic Control Induction System (ACIS) Refer to ACIS Control Circuit
5. PCV hose -
6. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
7. ECM Refer to COMPONENTS
Rough idling (Poor idling) 1. Electronic Throttle Control System (ETCS) Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
2. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
3. Ignition system Refer to ON-VEHICLE INSPECTION
4. Compression Refer to ON-VEHICLE INSPECTION - Step 9
5. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
6. Spark plug Refer to ON-VEHICLE INSPECTION - Step 2
7. Acoustic Control Induction System (ACIS) Refer to ACIS Control Circuit
8. PCV hose -
Hunting (Poor idling) 1. Electronic Throttle Control System (ETCS) Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
2. ECM power source circuit Refer to ECM POWER SOURCE CIRCUIT
3. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
4. Spark plug Refer to ON-VEHICLE INSPECTION - Step 2
5. Ignition system Refer to ON-VEHICLE INSPECTION
6. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
7. Acoustic Control Induction System (ACIS) Refer to ACIS Control Circuit
8. PCV hose -
Hesitation/Poor acceleration (Poor driveability) 1. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
2. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
3. Ignition system Refer to ON-VEHICLE INSPECTION
4. Spark plug Refer to ON-VEHICLE INSPECTION - Step 2
5. Air Intake Control System (AICS) Refer to Air Intake Control Circuit
6. A/T faulty Refer to HOW TO PROCEED WITH TROUBLESHOOTING
Surging (Poor driveability) 1. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
2. Spark plug Refer to ON-VEHICLE INSPECTION
3. Ignition system Refer to ON-VEHICLE INSPECTION
4. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
Engine stalls soon after starting 1. Fuel pump control circuit Refer to FUEL PUMP CONTROL CIRCUIT
2. Electronic Throttle Control System (ETCS) Refer to DTC P2102: Throttle Actuator Control Motor Circuit Low; DTC P2103: Throttle Actuator Control Motor Circuit High
3. Crank angle sensor Refer to INSPECTION
4. Spark plug Refer to ON-VEHICLE INSPECTION - Step 2
5. Ignition system Refer to ON-VEHICLE INSPECTION
6. Injector Refer to DTC P0300: Random / Multiple Cylinder Misfire Detected; DTC P0301: Cylinder 1 Misfire Detected; DTC P0302: Cylinder 2 Misfire Detected; DTC P0303: Cylinder 3 Misfire Detected; DTC P0304: Cylinder 4 Misfire Detected; DTC P0305: Cylinder 5 Misfire Detected; DTC P0306: Cylinder 6 Misfire Detected
Engine stalls during A/C operation 1. A/C signal circuit -
2. ECM Refer to COMPONENTS
Unable/difficult to refuel Refueling valve (canister) Refer to COMPONENTS
Engine vibrates frequently when idling (Active Control engine Mount (ACM) system does not operate) Active control engine mount circuit Refer to HOW TO PROCEED WITH TROUBLESHOOTING
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