Inspection Procedure 24: In Running, The ECO Mode Indicator Shows Nothing

COMMENTS ON TROUBLE SYMPTOM

Under a good driving conditions of fuel consumption, the engine-ECU shows ECO mode indicator through the CAN.
If the engine-ECU does not show ECO mode indicator no matter how the vehicle runs, the possible causes are a abnormal combination meter, also abnormal communication between the engine-ECU and the combination meter.

PROBABLE CAUSES

Failed ECO mode indicator
Open/short circuit in combination meter circuit

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code

Q. Is diagnosis code set?

	Inspection chart for diagnosis code (Refer to ).

	Go to Step 2.

STEP 2. Check the trouble symptom.

Q. Does the trouble symptom persist?

	Check combination meter system (Refer to GROUP 54A - Combination Meter - Trouble Symptom Chart ).

	Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).

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