STOP AND START SYSTEM > PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Stop and Start System
Symptom	Suspected Area	See page
The ECO indicator blinks at 0.25 second intervals (Stop and Start System does not operate)	Battery protection (System prohibit control)	Click here
	Engine hood courtesy switch circuit	Click here
	Driver side door courtesy switch circuit (System prohibit control)	Click here
	Driver side door courtesy switch circuit (CAN communication DTC U0140)	Click here
	Driver side door courtesy switch circuit	Click here
	Air conditioning system (System prohibit control)	Click here
	Air conditioning system (Terminal voltage TFAL)	Click here
	Air conditioning system (for automatic A/C system)	Click here
	Air conditioning system (for manual A/C system)	Click here
	Brake booster vacuum is low (System prohibit control)	Click here
	Brake booster vacuum is low	Click here
	The shift lever is operated without depressing the clutch pedal	Click here
Stop and Start system control cannot be canceled	Stop and start cancel switch	Click here
	ECAN terminal voltage	Click here
	Stop and start cancel switch circuit	Click here
The engine does not stop due to Stop and Start system control (Stop and Start system operation is prohibited)	System prohibit control	Click here
	Check if the vehicle was driven at 7 km/h (4.3 mph) or more	-
	Check if the MIL is illuminated	-
	Check if the ECO OFF indicator is illuminated	Click here
	Engine stop and start ECU terminal voltage	Click here
	Backup boost converter circuit	Click here
	Engine hood courtesy switch circuit	Click here
	Cooler thermistor circuit	Click here
	Neutral position switch circuit	Click here
	Stop and start cancel switch circuit	Click here
	Battery	Click here
	Engine stop and start ECU	Click here
Engine oil pressure light turns on (During Stop and Start system operation)	Engine oil pressure switch circuit	Click here

HINT:

If the battery terminal has been disconnected, the ECO OFF indicator will be illuminated. In this case, drive the vehicle for 15 to 40 minutes to turn off the indicator.