Diagnostic Index

-: Not applicable

SYMPTOM DIAGNOSTIC INDEX

No.	TROUBLESHOOTING ITEM		DESCRIPTION
1	Blown fuses		-
2	Check engine light illuminates		Check engine light illuminates incorrectly.
3	Will not crank		Starter does not work.
4	Hard to start/long crank/erratic start/erratic crank		Starter cranks engine at normal speed but engine requires excessive cranking time before starting. Battery is operating normally.
5	Engine stalls-after start/at idle		Engine stops unexpectedly at idle, after start, or both.
6	Cranks normally but will not start		Starter cranks engine at normal speed but engine will not run. Refer to symptom troubleshooting "NO. 5 ENGINE STALLS-AFTER START/AT IDLE" if this symptom appears after engine stalls. Fuel is in tank. Battery is in normal condition.
7	Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display		Engine oil warning light illuminates. Message related to engine hydraulic pressure malfunction indicated in display. (With center display)
8	Engine runs rough/rolling idle		Engine speed fluctuates between specified idle speed and lower speed and, engine shakes excessively. Idle speed is too slow and engine shakes excessively.
9	Fast idle/runs on		Engine speed continues at fast idle after warm-up. Engine runs after ignition is switched off.
10	Low idle/stalls during deceleration		Engine stops unexpectedly at beginning of deceleration or recovery from deceleration.
11	Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges		Engine stops unexpectedly at beginning of acceleration or during acceleration. Engine stops unexpectedly while cruising. Engine speed fluctuates during acceleration or cruising. Engine misses during acceleration or cruising. Vehicle bucks/jerks during acceleration, cruising, or deceleration. Momentary pause at beginning of acceleration or during acceleration. Momentary minor irregularity in engine output.
12	Lack/loss of power-acceleration/cruise		Performance is poor under load. (e.g., power down when climbing hills)
13	Knocking/pinging-acceleration/cruise		Abnormal combustion occurs under the condition such as the temperature in the combustion chamber is too high resulting in abnormal noise. Knocking sound occurs from the engine compartment during acceleration.
14	Poor fuel economy		The fuel consumption is high compared to the customer's expectations or the previous fuel consumption.
15	Emission compliance		Fails emissions test.
16	High oil consumption/leakage		Oil consumption is excessive.
17	Cooling system concerns-overheating		Engine runs at higher than normal temperature/overheats.
18	Cooling system concerns-runs cold		Engine does not reach normal operating temperature.
19	Exhaust smoke		Blue, black, or white smoke from exhaust system.
20	Fuel odor (in engine compartment)		Gasoline fuel smell or visible leakage.
21	Engine noise		Engine noise from under hood.
22	Vibration concerns (engine)		Vibration from under hood or driveline.
23	A/C does not work sufficiently		A/C compressor magnetic clutch does not engage when A/C switch is turned on.
24	A/C is always on or A/C compressor runs continuously		A/C compressor magnetic clutch does not disengage.
25	Sulfuric smell occurs		Rotten egg smell (sulphur) from exhaust.
26	Fuel refill concerns		Fuel tank does not fill smoothly.
27	Fuel filling shut off concerns		Fuel does not shut off properly.
28	Spark plug condition		Incorrect spark plug condition.
29	ATX concerns	Upshift/downshift/engagement	ATX concerns not related to engine performance.