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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: 

PROBLEM SYMPTOMS REFERENCE

Symptom Suspected Area See
Engine does not crank (does not start) 1. Immobilizer system ENGINE IMMOBILIZER SYSTEM
2. Starter STARTER
3. STARTER relay STARTER RELAY
4. Starter signal circuit DTC P0617 STARTER RELAY CIRCUIT HIGH
No initial combustion (does not start) 1. ECM power source circuit ECM POWER SOURCE CIRCUIT
2. Ignition system IGNITION SYSTEM
3. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
4. Injector FUEL INJECTOR
5. Crankshaft position sensor REMOVAL
6. ECM TERMINALS OF ECM 
Difficult to start (engine cranks normally) 1. Electronic Throttle Control System (ETCS) DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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 P02135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
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 FUEL INJECTOR
7. Crankshaft position sensor REMOVAL
Difficult to start with cold engine 1. Starter signal circuit DTC P0617 STARTER RELAY CIRCUIT HIGH
2. Electronic Throttle Control System (ETCS) DTC P0120 Throttle / Pedal Position Sensor / Switch "A" Circuit; 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 P02135 Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage correlation
3. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
4. Spark plug ON-VEHICLE INSPECTION
5. Ignition system ON-VEHICLE INSPECTION
6. Injector FUEL INJECTOR
7. Engine coolant temperature sensor ENGINE COOLANT TEMPERATURE SENSOR
Difficult to start with hot engine 1. Starter signal circuit DTC P0617 STARTER RELAY CIRCUIT HIGH
2. Electronic Throttle Control System (ETCS) DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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 P02135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
3. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
4. Spark plug ON-VEHICLE INSPECTION
5. Ignition system ON-VEHICLE INSPECTION
6. Injector FUEL INJECTOR
7. Engine coolant temperature sensor ENGINE COOLANT TEMPERATURE SENSOR
High engine idle speed (poor idling) 1. Electronic Throttle Control System (ETCS) DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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 P02135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
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 -
6. ECM TERMINALS OF ECM 
Low engine idle speed (poor idling) 1. Electronic Throttle Control System (ETCS) DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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 P02135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
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 -
6. Injector FUEL INJECTOR
7. ECM TERMINALS OF ECM 
Rough idling (poor idling) 1. Electronic Throttle Control System (ETCS) DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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 P02135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
2. Injector FUEL INJECTOR
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 -
Hunting (poor idling) 1. Electronic Throttle Control System (ETCS) DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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 P02135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
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 FUEL INJECTOR
7. Acoustic Control Induction System (ACIS) ACIS CONTROL CIRCUIT
8. PCV hose -
Hesitation/Poor acceleration (poor driveability) 1. Injector FUEL INJECTOR
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 (ACIS) ACIS CONTROL CIRCUIT
6. A/T faulty AUTOMATIC TRANSAXLE SYSTEM
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 FUEL INJECTOR
Engine stalls soon after starting 1. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
2. Electronic Throttle Control System (ETCS) DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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 P02135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
3. Crankshaft position sensor REMOVAL
4. Spark plug ON-VEHICLE INSPECTION
5. Ignition system ON-VEHICLE INSPECTION
6. Injector FUEL INJECTOR
Engine stalls during A/C operation 1. A/C signal circuit (Compressor circuit) -
2. ECM TERMINALS OF ECM 
Unable/difficult to refuel Refueling valve (canister) -
Engine vibrates frequently when idling (Active Control) Active control engine mount circuit ACTIVE CONTROL ENGINE MOUNT SYSTEM
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