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Quick Diagnostic Chart

QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 Starter motor malfunction (machanical or electrical) Starter circuit Including Ignition switch is open Improper engine oil level Low or dead battery Charging system malfunction Improper engine compression Improper oil level gauge Base engine maltunction Drive plate is seized Improper tension or damaged drive belts Improper engine coolant level Water and anti-freeze mixture is improper Cooling system malfunction (such as radiator, hoses, overflow system, thermostat) Cooling Fan system malfunction
1 Blown fuses                            
2 Check engine light illuminates                            
3 Will not crank x x   x x     x x          
4 Hand to start/long crank/erratic start/erratic crank x         x   x            
5 Engine stalls-after start/at idle                            
6 Cranks normally but will not start           x                
7 Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display     x       x x            
8 Engine runs rough/rolling idle           x                
9 Fast idle/runs on                            
10 Low idle/stalls during deceleration           x                
11 Engine stalls/quits, engine runs rough, misses, backfire, hesitation/stumble surges           x                
12 Lackless of power-acceleration/cruise           x                
13 Knocking/pinging-accelerartion/cruise           x               x
14 Poor fuel economy           x         x   x x
16 Emission compliance           x   x         x  
18 High oil consumption/leakage             x x            
17 Cooling system concerns-overheating                   x x x x x
18 Cooling system concerns-runs cold                         x x
19 Exhaust smoke           x   x         x  
20 Fuel odor (in engine compartment)                            
21 Engine noise                   x        
22 Vibration concerns (engine)                            
23 A/C does not work sufficiently                            
24 A/C is always an or A/C compressor runs continuously                            
25 Sulfuric smell occurs                            
26 Spark plug condition                            
27 No cylinder deactivation       x                    
- ATX related troubleshooting item (See SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL. FW6AX-EL] .)
- i-stop related troubleshooting item (See SYMPTOM DIAGNOSTIC INDEX .)
QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 Engine or transaxle mounts are improperly installed Cooling fan or condenser fan seats improper Fuel quality Improper engine oil viscosity Improper valve timing Oil leakage Improper oil or fluid level Coolant leakage Electric variable valve tinning system malfunction Hydraulic variable valve timing system malfunction Engine overheating Air clearer element clogged or restricted Air leakage from intake-air system (loose tubes cracks, gaskets breakage) Air suction in intake-air system Intake-air system restriction
1 Blown fuses                              
2 Check engine light illuminates                 x x          
3 Will not crank                              
4 Hard to start/long crank/erratic start/erratic crank     x   x             x x   x
5 Engine stalls-after start/st idle     x           x x x   x   x
6 Cranks normally but will not start     x   x           x x x   x
7 Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display       x   x x                
8 Engine runs rough rolling idle     x   x           x   x   x
9 Fast idle/runs on                 x x     x    
10 Low idle/stalls during deceleration         x               x   x
11 Engine stalls/quits, engine runs rough, misses. buck/jerk, hesitation/stumble, surges     x   x           x x     x
12 Lack/loss of power-acceleration/cruise     x   x       x x x x x   x
13 Knocking/pinging-acceleration/cruise     x               x   x    
14 Poor fuel economy       x     x                
15 Emission compliance     x   x           x x x    
16 High oil consumption/leakage       x   x                  
17 Cooling system concerns-overheating                              
18 Cooling system concerns-runs cold                              
19 Exhaust smoke           x   x       x x    
20 Fuel odor (in engine compartment)                              
21 Engine noise             x                
22 Vibration concerns (engine) x x                          
23 A/C does not work sufficiently                              
24 A/C is always on or A/C compressor runs continuously                              
25 Sulfuric small occurs     x                        
26 Spark plug condition                              
27 No cylinder deactivation                     x        
- ATX related troubleshooting item (See SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL, FW6AX-EL] .)
- i-stop related troubleshooting item (See SYMPTOM DIAGNOSTIC INDEX [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.5)] .)
QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 Drlve-by-wlre control system Improper operation Drive-by-wine control system operates with brake override system Throttle body malfunction Purge solenoid valve malfunction Vacuum leakage (vacuum hose damage, misrouting) Ignition coil malfunction (e.g. open, short or cracks) Initial ignition timing misadjustment (CKP and pulse wheel misadjustment) Spark plug malfunction Fuel pump (low-pressure side) malfunction (mechanically or electrically) Pressure regulator (built-into fuel pump unit el fuel lank) malfunction Inadequate fuel pressure (high-pressure side) Inadequate fuel pressure (low-pressure side) Fuel line restricted or clogged
1 Blown fuses                          
2 Check engine light illuminates x                        
a Will not crank                          
4 Hard to start/long crank/erratic start/erratic crank x   x x x x x x x   x x x
5 Engine stalls-after start/at idle x     x x x     x   x x x
6 Cranks normally but will not start x     x x x   x x   x x x
7 Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display                          
8 Engine runs rough/rolling idle x     x x x   x x   x x x
9 Fast idle/rune on x   x                    
10 Low idle/stalls during deceleration x     x x       x   x x x
11 Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges x   x x x     x x   x x x
12 Lack/lose of power-acceleration/cruise x x x x x x   x x   x x x
13 Knocking/pinging-acceleration/cruise x         x   x     x x  
14 Poor fuel economy         x x   x     x x ~5T
15 Emission compliance x   x x x     x     x x x
13 High oil consumption/leakage                          
17 Cooling system concerns-overheating                          
18 Cooling system concerns-runs cold                          
19 Exhaust smoke           x   x     x x x
20 Fuel odor (in engine compartment)       x             x x x
21 Engine noise         x                
22 Vibration concerns (engine)                          
23 A/C does not work sufficiently                          
24 A/C is always on or A/C compressor runs continuously                          
25 Sulfuric small occurs                          
26 Spark plug condition                          
27 No cylinder deactivation                          
- ATX related troubleshooting item (Sea SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL. FW6AX-EL].)
- i-stop related troubleshooting Item (See SYMPTOM DIAGNOSTIC INDEX .)
QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 Fuel injector malfunction (inoperative) Fuel filler cap malfunction Fuel tillers restricted or clogged Relief valve malfunction (built-into high pressure fuel pump) Spill valve control solenoid valve mall unction (built-into high pressure fuel pump) Fuel leakage at fuel line High pressure fuel pump malfunction Incorrect fuel injection liming or amount Improper air/fuel ratio mixture control Exhaust system or catalytic converter restriction Exhaust gas leakage Catalytic converter malfunction PCV valve malfunction Fuel lank vent system malfunction Charcoal canister malfunction
1 Blown fuses                              
2 Check engine light illuminates x       x       x     x      
3 Will not crank                              
4 Hard to start/long crank/erratic start/erratic crank x   x x x x x x x x     x    
5 Engine stalls-after start/at idle x   x x x x x x x x     x    
6 Cranks normally but will not start x   x x x x x x x x     x    
7 Engine oil waning light Illuminated/message related to engine hydraulic pressure malfunction indicated in display                              
8 Engine runs rough/rolling idle x   x x x x x   x x     x    
9 Fast idle/runs on x       x       x            
10 Low idle/stalls during deceleration x   x x x x x x x            
11 Engine stalls/quits. engine runs rough, misses. buck/jerk, hesitation/stumbles, surges x   x x x x x x x x     x    
12 Lack/loss power-acceleration/cruise x   x x x x x x x x x   x    
13 Knocking/pinging-acceleration/cruise x       x     x   x          
14 Poor fuel economy x   x x x x x x   x     x    
16 Emission compliance x     x x x x x x x x x x    
17 High oil consumption/leakage                         x    
17 Cooling system concerns-overheating                              
18 Cooling system concerns-runs cold                              
19 Exhaust smoke x   x x x   x x   x x   x    
20 Fuel odor (in engine compartment) x x       x                  
21 Engine noise                   x          
22 Vibration concerns (engine)                              
23 A/C does not work sufficiently                              
24 A/C is always on or A/C compressor runs continuously                              
25 Sulfuric smell occurs                              
26 Spark plug condition                              
27 No cylinder deactivation                              
- ATX related troubleshooting item (See SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL, FW6AX-EL] .]
- i-stop related troubleshooting item (See SYMPTOM DIAGNOSTIC INDEX .)
QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 Constant voltage supply circuit malfunction Main relay malfunction (mechanically or electrically) No battery power supply to PCM Poor PCM ground or vehicle ground (open) Electrical connector disconnection Oil pressure switch or related circuit malfunction EGT sensor or related circuit malfunction Transaxle range sensor malfunction Brake switch or related circuit malfunction A/F sensor or HO2S or related circuit malfunction IAT sensor No. 1 (Integrated in MAF sensor/IAT sensor No. 1) or related circuit malfunction IAT sensor No. 2 (integrated in MAP sensor/IAT sensor No. 2) or related circuit malfunction Fuel pressure sensor or related circuit malfunction MAP sensor or related circuit malfunction
1 Blown fuses                            
2 Check engine light illuminates         x   x   x x x   x x
3 Will not crank   x   x                    
4 Hard to start/long crank/erratic start/erratic crank       x     x     x     x x
5 Engine stalls-after start/at idle     x x x   x     x     x M
6 Cranks normally but will not start     x x x   x     x     x  
7 Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated In display           x                
8 Engine runs rough/rolling idle         x   x     x     x x
9 Fast idle/runs on             x     x        
10 Low idle/stalls during deceleration             x   x x     x x
11 Engine stalls/quits, engine runs, rough, misses, buck/jerk, hesitation/stumble. surges   x         x     x x   x x
12 Lack/loss of power-acceleration/cruise             x     v  . x   x x
13 Knocking/pinging-acceleration/cruise                     y x x x
14 Poor fuel economy             x       x   x x
15 Emission compliance             x     x x   x x
16 High oil consumption/leakage                            
17 Cooling system concerns-overheating                            
18 Coding system concerns-runs cold                            
19 Exhaust smoke             x     x x   x x
20 Fuel odor (in engine compartment)                            
21 Engine noise                            
22 Vibration concerns (engine)                            
23 A/C does not work sufficiently                            
24 A/C is always on or A/C compressor runs continuously                            
25 Sulfuric small occurs                            
26 Spark plug condition                            
27 No cylinder deactivation                            
- ATX related troubleshooting item (See SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL. FW6AX-EL].)
- i-stop related troubleshooting item (See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-G 2.5 [WITH CYLINDER DEACTIVATION)] .)
QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 Intake CMP sensor damaged (e.g. open or short circuit) Intake CM P sensor pulse wheel (intake camshaft) damaged Exhaust CMP sensor damaged (e.g. open or short circuit) Exhaust CMP sensor pulse wheel (exhaust camshaft) damaged Improper gap between CKP sensor and pulse wheel CKP sensor damaged (e.g. open or short circuit) CKP sensor pulse wheel damaged MAF sensor or related circuit malfunction K-S or related circuit malfunction TP sensor or related circuit malfunction APP sensor or related circuit malfunction Improper vehicle speed signal Cruise control system operation improperly
1 Blown fuses                          
2 Check engine light illuminates x   x   x x   x x x x x  
3 Will not crank               x          
4 Hard to start/long crank/erratic start/erratic crank x x x x x x x         x  
5 Engine, stalls-after start/at idle x x x x x x x x     x x  
6 Cranks normally but will not start x x x x x x x x     x x  
7 Engine oil warning light illuminated/massage related to engine hydraulic pressure malfunction indicated in display                          
8 Engine runs rough/rolling idle x x x x x x x x     x x  
9 Fast idle/runs on                     x x x
10 Low idle/stalls during deceleration x x x x x x x x   x x x  
11 Engine stalls/quits, engine runs rough, misses, butt/jerk, hesitation/stumble, surges x x x x x x x x   x x    
12 Lack/loss of powar-acceleration/cruise x x x x x x x x     x x  
13 Knocking/pinging-acceleration/cruise x x x x       x x   x    
14 Poor fuel economy x x x x x x x x     x x  
15 Emission compliance x x x x x x x x   x x x  
16 High oil consumption/leakage                          
17 Cooling system concerns-overheating                          
18 Cooling system concerns-runs cold                          
19 Exhaust smoke         x     x   x x x  
20 Fuel odor (in engine compartment)                          
21 Engine noise                          
22 Vibration concerns (engine)                          
23 A/C does not work sufficiently                          
24 A/C is always on or A/C compressor runs continuously                          
25 Sulfuric small occurs                          
26 Spark plug condition                          
27 No cylinder deactivation                       x  
- ATX related troubleshooting item (See SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL. FW6AX-EL] .)
- i-slop related troubleshooting item (See SYMPTOM DIAGNOSTIC INDEX .)
QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 A/C system improper operation Improper refrigerant charging amount AIG relay (A/C control signal circuit) malfunction NC compressor magnetic clutch malfunction ATX related pans malfunction Improper atf level Brake dragging Loose parts Improper balance of wheels and tires Drive line malfunction Suspension malfunction Immobilizer system operating improperly Immobilizer system or related circuit malfunction Advanced keyless entry system malfunction
1 Blown fuses                            
2 Check engine light illuminates                            
3 Will not crank                       x x  
4 Hard to start/long crank/erratic start/erratic crank               x            
5 Engine stalls-after start/at idle x x x         x            
6 Cranks normally but will not start               x            
7 Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display                            
8 Engine runs rough/rolling idle x x x         x            
9 Fast idle/runs on     x                      
10 Low idle/stalls during deceleration x     x       x            
11 Engine stalls/quits engine runs rough, misses, buck/jerk, hesitation/stumble, surges x       x     x            
12 Lack/loss of pow\er-acceleration/cruise x   x       x x            
13 Knocking/pinging-acceleration/cruise                            
14 Floor fuel economy x         x x x x          
15 Emission compliance                            
16 High oil consumption/leakage                            
17 Cooling system concerns-overheating x x                        
18 Cooling system concerns-runs cold                            
19 Exhaust smoke                            
20 Fuel odor (in engine compartment)               x            
21 Engine noise               x            
22 Vibration concerns (engine)               x x x x      
23 A/C does not work sufficiently x x x x                    
24 A/C is always on or A/C compressor runs continuously x     x                    
25 Sulfuric smell occurs                            
26 Spark plug condition                            
27 No cylinder deactivation                            
- ATX related troubleshooting item (See SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL. FW6AX-EL] .)
- i-stop related troubleshooting item (See SYMPTOM DIAGNOSTIC INDEX .)
QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 Instrument cluster malfunction Driver-side buckle switch malfunction Door latch switch or litigate latch switch malfunction Bonnet latch switch mall unction Battery malfunction (deterioration) Ambient temperature sensor malfunction ABS wheel-speed sensor malfunction Steering angle sensor malfunction Driver-side air mix actuator malfunction Climate control unit malfunction Keyless antenna malfunction Engine oil contamination Improper tire air pressure Engine operation time is longer than traveled distance Amount of fuel injection increases
1 Blown fuses                              
2 Check engine light illuminates x                            
3 Will not crank x                            
4 Hard to starting crank/erratic start/erratic crank                              
5 Engine stalls-after start/at idle                              
6 Cranks normally but will not start                              
7 Engine oil warning light illuminated/masaage related to engine hydraulic pressure malfunction indicated in display x                            
8 Engine runs rough/rolling idle                              
9 Fast idle/runs on                              
10 Low idle/stalls during deceleration                              
11 Engine stalls/quits engine runs rough, misses, buck/jerk. hesitation/stumble, surges                              
12 Lack/loss of power-acceleration/cruise                              
13 Knocking pinging-acceleration/cruise                              
14 Poor fuel economy                       x x x x
15 Emission compliance                              
16 High oil consumption leakage                              
17 Coding system concerns-overheating x                            
18 Coding system concerns-runs cold x                            
19 Exhaust smoke                              
20 Fuel odor (in engine compartment)                              
21 Engine noise                              
22 Vibration concerns (engine)                              
23 A/C does not work sufficiently x                            
24 A/C is always on or A/C compressor runs continuously x                            
25 Sulfuric smell occurs                              
26 Spark plug condition                              
27 No cylinder deactivation                              
- ATX related troubleshooting item (See SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL. FW6AX-EL] .)
- i-stop related troubleshooting item (See SYMPTOM DIAGNOSTIC INDEX .)
QUICK DIAGNOSTIC CHART

Possible factor
Troubleshooting item		 Characteristic learning for cylinder deactivation system-related parts is not completed Engine torque is large Insufficient engine warm-up Engine oil temperature is high During DSC operation Cylinder deactivation control continues for long periods Cylinder deactivation system-related part malfunction
1 Blown fuses              
2 Check engine light illuminates              
3 Will not crank              
4 Hard to start/long crank/erratic start/erratic crank              
5 Engine stalls-after start/at idle              
6 Cranks normally but will not start              
7 Engine oil warning light illuminated/message related to angina hydraulic pressure malfunction indicated in display              
8 Engine runs rough/rolling idle              
9 Fast idle/runs on              
10 Low idle/stalls during deceleration              
11 Engine stalls/quits engine runs rough, misses, buck-jerk, hesitation/stumble, surges              
12 Lack/1oses of power-acceleration/cruise              
13 Knocking/pinging-acceleration/cruise              
14 Poor fuel economy              
15 Emission compliance              
16 High oil consumption/leakage              
17 Cooling system concerns-overtheating              
18 Cooling system concerns-runs cold              
19 Exhaust smoke              
20 Fuel odor (in engine compartment)              
21 Engine noise              
22 Vibration concerns (engine)              
23 A/C does not work sufficiently              
24 A/C is always on or A/C compressor runs continuously              
25 Sulfuric smell occurs              
26 Spark plug condition              
27 No cylinder deactivation x x x x x x x
- ATX related troubleshooting Item (See SYMPTOM TROUBLESHOOTING ITEM TABLE [FW6A-EL, FW6AX-EL] .)
- i-stop related troubleshooting item (See SYMPTOM DIAGNOSTIC INDEX [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.5)] .)
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