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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 TABLE

Symptoms Suspect Areas Reference
Engine does not crank (does not start)
  1. Starter and starter relay
  2. Park/Neutral position switch circuit
  1. STARTING SYSTEM
  2. PARK/NEUTRAL POSITION SWITCH ASSY (ATM)
No initial combustion (does not start)
  1. ECM power source circuit
  2. Ignition coil (w/ Igniter) circuit
  3. Fuel pump control circuit
  4. Injector
  1. ECM POWER SOURCE CIRCUIT 
  2. 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 
  3. FUEL PUMP CONTROL CIRCUIT 
  4. INSPECTION
Incomplete combustion (does not start)
  1. Fuel pump control circuit
  2. Ignition coil (w/ Igniter) circuit
  3. Injector
  1. FUEL PUMP CONTROL CIRCUIT 
  2. 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 
  3. INSPECTION
Engine cranks normally but difficult to start
  1. Starter signal circuit
  2. IAC valve circuit
  3. Fuel pump control circuit
  4. Ignition coil (w/ Igniter)
  5. Spark plug
  6. Compression
  7. Injector
  1. DTC P0617 STARTER RELAY CIRCUIT HIGH 
  2. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
  3. FUEL PUMP CONTROL CIRCUIT 
  4. 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. INSPECTION
  6. ENGINE
  7. INSPECTION
Difficult to start with cold engine
  1. Starter signal circuit
  2. IAC valve circuit
  3. Fuel pump control circuit
  4. Injector
  5. Ignition coil (w/ Igniter)
  6. Spark plug
  1. DTC P0617 STARTER RELAY CIRCUIT HIGH 
  2. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
  3. FUEL PUMP CONTROL CIRCUIT 
  4. INSPECTION
  5. 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 
  6. INSPECTION
Difficult to start with warm engine
  1. Starter signal circuit
  2. IAC valve circuit
  3. Fuel pump control circuit
  4. Injector
  5. Ignition coil (w/ Igniter)
  6. Spark plug
  1. DTC P0617 STARTER RELAY CIRCUIT HIGH 
  2. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
  3. FUEL PUMP CONTROL CIRCUIT 
  4. INSPECTION
  5. 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 
  6. INSPECTION
Incorrect fast idle (poor idling)
  1. IAC valve circuit
  1. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
High engine idling speed (poor idling)
  1. IAC valve circuit
  2. ECM power source circuit
  3. Park/Neutral position switch circuit (1)
  1. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
  2. ECM POWER SOURCE CIRCUIT 
  3. PARK/NEUTRAL POSITION SWITCH ASSY (ATM)
Low engine idling speed (poor idling)
  1. IAC valve circuit
  2. Park/Neutral position switch circuit (1)
  3. Fuel pump control circuit
  4. Injector
 DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
PARK/NEUTRAL POSITION SWITCH ASSY (ATM)
FUEL PUMP CONTROL CIRCUIT 
INSPECTION
Rough idling
  1. IAC valve circuit
  2. Injector
  3. Ignition coil (w/ Igniter) circuit
  4. Compression
  5. Fuel pump control circuit
  1. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
  2. INSPECTION
  3. 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. ENGINE
  5. FUEL PUMP CONTROL CIRCUIT 
Hunting (poor idling)
  1. IAC valve circuit
  2. ECM power source circuit
  3. Fuel pump control circuit
  1. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
  2. ECM POWER SOURCE CIRCUIT 
  3. FUEL PUMP CONTROL CIRCUIT 
Hesitation/Poor acceleration (poor driveability)
  1. Injector
  2. Fuel pump control circuit
  3. Ignition coil (w/ Igniter) circuit
  1. INSPECTION
  2. FUEL PUMP CONTROL CIRCUIT 
  3. 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 
Muffler explosion, after fire (poor driveability)
  1. Ignition coil (w/ Igniter)
  2. Spark plug
  3. Injector
  1. 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 
  2. INSPECTION
  3. INSPECTION
Surging (poor driveability)
  1. Fuel pump control circuit
  2. Spark plug
  3. Injector
  1. FUEL PUMP CONTROL CIRCUIT 
  2. INSPECTION
  3. INSPECTION
Engine stalls soon after starting
  1. Fuel pump control circuit
  2. IAC valve circuit
  1. FUEL PUMP CONTROL CIRCUIT 
  2. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
Engine stalls warm accelerator pedal released
  1. Injector
  2. IAC valve circuit
  3. ECM
  1. INSPECTION
  2. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
  3. TERMINALS OF ECM 
Engine stalls when shifting from N to D (1)
  1. Park/Neutral position switch circuit(1)
  2. IAC valve circuit
  1. PARK/NEUTRAL POSITION SWITCH ASSY (ATM)
  2. DTC P0505 IDLE AIR CONTROL SYSTEM, DTC P0511 IDLE AIR CONTROL CIRCUIT 
(1) A/T (Automatic Transaxle) only
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