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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 CHART

Symptom Suspected area Refer to
Engine does not crank (Does not start) 1. Immobiliser system SYSTEM DESCRIPTION
2. Starter STARTER
3. STARTER RELAY  
No initial combustion (Does not start) 1. ECM Power Source Circuit ECM POWER SOURCE CIRCUIT 
2. ECM VC output circuit VC OUTPUT CIRCUIT 
3. Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT 
4. ECM 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. Start signal circuit DTC P0505 IDLE CONTROL SYSTEM MALFUNCTION 
2. Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT 
3. Spark plug ON-VEHICLE INSPECTION
4. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT : DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT : DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT : DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT 
5. Injector INSPECTION
Difficult to start with warm engine 1. Start signal circuit DTC P0617 STARTER RELAY CIRCUIT HIGH 
2. Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT 
3. Spark plug ON-VEHICLE INSPECTION
4. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT : DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT : DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT : DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT 
5. Injector INSPECTION
High engine idling speed (Poor idling) 1. A/C signal circuit (compressor circuit) -
2. ECM Power Source Circuit ECM POWER SOURCE CIRCUIT 
3. Electronic throttle control system 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 P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION 
4. Air induction system -
5. PCV hose -
Low engine idling speed (Poor idling) 1. A/C signal circuit (compressor circuit) -
2. Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT 
3. Electronic throttle control system 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 P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION 
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 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 P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION 
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 DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT : DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT : DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT : DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT 
5. Injector INSPECTION
6. Electronic throttle control system 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 P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION 
7. Air induction system -
8. PCV hose -
Hesitation/Poor acceleration (Poor driveability) 1. Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT 
2. A/T faulty(1) AX-21
3. Spark plug ON-VEHICLE INSPECTION
4. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT : DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT : DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT : DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT 
5. Injector INSPECTION
Surging (Poor driveability) 1. Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT 
3. Spark plug ON-VEHICLE INSPECTION
4. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT : DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT : DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT : DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT 
5. Injector INSPECTION
Engine stalls soon after starting 1. Fuel Pump Control Circuit FUEL PUMP CONTROL CIRCUIT 
2. Spark plug ON-VEHICLE INSPECTION
3. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT : DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT : DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT : DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT 
4. Injector INSPECTION
Engine stalls during A/C operation 1. A/C signal circuit (compressor circuit) -
2. ECM ECM 
Unable/difficult to refuel Refueling valve (canister) -
HINT:
(1) A/T only
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