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Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem 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.

SFI SYSTEM 

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See Reference
Engine does not crank (Does not start) Smart access system with push-button start POWER SOURCE MODE DOES NOT CHANGE TO ON (READY)
Immobiliser system HOW TO PROCEED WITH TROUBLESHOOTING
ECM power source circuit ECM POWER SOURCE CIRCUIT
VC output circuit VC OUTPUT CIRCUIT
Hybrid system -
No initial combustion (Does not start) ECM power source circuit ECM POWER SOURCE CIRCUIT
Crankshaft position sensor DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT; DTC P0337 CRANKSHAFT POSITION SENSOR "A" CIRCUIT LOW INPUT; DTC P0338 CRANKSHAFT POSITION SENSOR "A" CIRCUIT HIGH INPUT
Ignition system ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
ECM ECM
VC output circuit VC OUTPUT CIRCUIT
Engine cranks normally but difficult to start Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
Compression ON-VEHICLE INSPECTION
Difficult to start with cold engine Ignition system ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
Fuel injector for direct injection INSPECTION
Fuel injector for port injection INSPECTION
Difficult to start with warm engine Fuel injector for port injection INSPECTION
Fuel injector for direct injection INSPECTION
Ignition system ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
High engine idle speed (Poor idling) ECM power source circuit ECM POWER SOURCE CIRCUIT
A/C signal circuit (compressor circuit) HOW TO PROCEED WITH TROUBLESHOOTING
Electronic throttle control system DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; 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
Air induction system ON-VEHICLE INSPECTION
PCV hose ON-VEHICLE INSPECTION
Low engine idle speed (Poor idling) A/C signal circuit (compressor circuit) HOW TO PROCEED WITH TROUBLESHOOTING
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
Electronic throttle control system DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; 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
Air induction system ON-VEHICLE INSPECTION
PCV hose ON-VEHICLE INSPECTION
Rough idling (Poor idling) Compression ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Fuel injector for port injection INSPECTION
Fuel injector for direct injection INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
Electronic throttle control system DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; 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
Air induction system ON-VEHICLE INSPECTION
PCV hose ON-VEHICLE INSPECTION
Mass air flow meter MASS AIR FLOW METER
Hunting (Poor idling) ECM power source circuit ECM POWER SOURCE CIRCUIT
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector for port injection INSPECTION
Fuel injector for direct injection INSPECTION
Electronic throttle control system DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; 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
Air induction system ON-VEHICLE INSPECTION
PCV hose ON-VEHICLE INSPECTION
Hesitation/Poor acceleration (Poor driveability) Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector for port injection INSPECTION
Fuel injector for direct injection INSPECTION
Mass air flow meter MASS AIR FLOW METER
Electronic throttle control system DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; 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
Air induction system ON-VEHICLE INSPECTION
Compression ON-VEHICLE INSPECTION
Surging (Poor driveability) Spark plug ON-VEHICLE INSPECTION
Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector for port injection INSPECTION
Fuel injector for direct injection INSPECTION
Mass air flow meter MASS AIR FLOW METER
Variable valve timing system DTC P0011 CAMSHAFT POSITION "A" - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1); DTC P0021 CAMSHAFT POSITION "A" - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 2)
Compression ON-VEHICLE INSPECTION
Engine stalls soon after starting Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT
Fuel pump for high pressure ON-VEHICLE INSPECTION
Spark plug ON-VEHICLE INSPECTION
Ignition system ON-VEHICLE INSPECTION
Fuel injector for port injection INSPECTION
Fuel injector for direct injection INSPECTION
Variable valve timing system DTC P0011 CAMSHAFT POSITION "A" - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1); DTC P0021 CAMSHAFT POSITION "A" - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 2)
Electronic throttle control system DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; 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
Air induction system ON-VEHICLE INSPECTION
PCV hose ON-VEHICLE INSPECTION
Compression ON-VEHICLE INSPECTION
Engine stalls during A/C operation A/C signal circuit (compressor circuit) HOW TO PROCEED WITH TROUBLESHOOTING
ECM ECM
Unable/difficult to refuel Refueling valve (canister) INSPECTION