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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.

PROBLEM SYMPTOMS REFERENCE

Symptom Suspected Area See Procedure
Engine does not crank (Does not start)
  • Immobilizer System
 SYSTEM DESCRIPTION
  • Starter
 INSPECTION
  • STARTER relay
 INSPECTION
No initial combustion (Does not start)
  • ECM power source circuit
 ECM POWER SOURCE CIRCUIT 
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • VC output circuit
 VC OUTPUT CIRCUIT 
  • ECM
 TERMINALS OF ECM 
Engine cranks normally but difficult to start
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • Compression
 ON-VEHICLE INSPECTION
Difficult to start with cold engine
  • Starter signal circuit
 DTC P0617 STARTER RELAY CIRCUIT HIGH 
  • Fuel pump control circuit
 DTC P0617 STARTER RELAY CIRCUIT HIGH 
  • Spark plug
 SYSTEM DIAGRAM
  • 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; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
  • Injector
 ON-VEHICLE INSPECTION
Difficult to start with warm engine
  • Starter signal circuit
 DTC P0617 STARTER RELAY CIRCUIT HIGH 
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • Spark plug
 SYSTEM DIAGRAM
  • 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; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
  • Injector
 ON-VEHICLE INSPECTION
High engine idling speed (Poor idling)
  • A/C signal circuit (compressor circuit)
 -
  • ECM power source circuit
 ECM POWER SOURCE CIRCUIT 
  • Electronic throttle control system
 DTC P2111 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPEN; DTC P2112 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK CLOSED 
  • Air induction system
 -
  • PCV hose
 -
Low engine idling speed (Poor idling)
  • A/C signal circuit (compressor circuit)
 -
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • Electronic throttle control system
 DTC P2111 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPEN; DTC P2112 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK CLOSED 
  • Air induction system
 -
  • PCV hose
 -
Rough idling (Poor idling)
  • Compression
 ON-VEHICLE INSPECTION
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • Electronic throttle control system
 DTC P2111 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPEN; DTC P2112 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK CLOSED 
  • Air induction system
 -
  • PCV hose
 -
Hunting (Poor idling)
  • ECM power source circuit
 ECM POWER SOURCE CIRCUIT 
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • Spark plug
 SYSTEM DIAGRAM
  • 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; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
  • Injector
 ON-VEHICLE INSPECTION
  • Electronic throttle control system
 DTC P2111 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK OPEN; DTC P2112 THROTTLE ACTUATOR CONTROL SYSTEM - STUCK CLOSED 
  • Air induction system
 -
  • PCV hose
 -
Hesitation/ Poor acceleration (Poor driveability)
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • A/T faulty* (A750E)
 -
  • A/T faulty* (A750F)
 HOW TO PROCEED WITH TROUBLESHOOTING
  • Spark plug
 SYSTEM DIAGRAM
  • 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; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
  • Injector
 ON-VEHICLE INSPECTION
Surging (Poor driveability)
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • Spark plug
 SYSTEM DIAGRAM
  • 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; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
  • Injector
 ON-VEHICLE INSPECTION
Engine stalls soon after starting
  • Fuel pump control circuit
 FUEL PUMP CONTROL CIRCUIT 
  • Spark plug
 SYSTEM DIAGRAM
  • 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; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
  • Injector
 ON-VEHICLE INSPECTION
Engine stalls during A/C operation
  • A/C signal circuit (Compressor circuit)
 -
  • ECM
 TERMINALS OF ECM 
Unable/difficult to refuel
  • Refueling valve (canister)
 -
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