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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: 

SFI SYSTEM SYMPTOMS REFERENCE TABLE

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