Diagnostic Index

Verify malfunction symptoms using the following diagnostic index, then go to the appropriate troubleshooting chart.

SYMPTOM DIAGNOSTIC INDEX (SKYACTIV-G)

Troubleshooting item

Description

i-stop warning light (amber) illuminates

i-stop warning light (amber) remains illuminated while engine is running.

i-stop warning light (amber) flashes

i-stop function is inhibited because an i-stop control system error is detected.

i-stop indicator light (green) flashes

i-stop indicator light (green) remains flashing during i-stop.

i-stop function does not operate

i-stop function does not operate when vehicle is stopped.

i-stop function operates under no engine-stop conditions

i-stop function operates even though system is turned off by pressing i-stop OFF switch.
i-stop function operates even though vehicle conditions are for non-operation.
i-stop function operates frequently while parking vehicle.

Engine does not restart

The engine does not restart after the engine was stopped by the i-stop control.

Limited i-stop function operation time

Frequency of which i-stop function operates is low.
Frequent occurrence of engine restarting other than for driving vehicle from stop.

Ineffective operation of A/C during engine stop (i-stop system)

The A/C airflow temperature is too high or low compared with the set temperature while the i-stop function is operating.

Acceleration malfunction ⁽¹⁾

Acceleration from i-stop is not smooth.
Suppresses (shock) when accelerating vehicle from i-stop.
Engine vibration increases when engine is restarted.

Vehicle moves when accelerating from standstill on slope ⁽¹⁾

Vehicle slips backwards on inclined road surface when accelerating after i-stop operates.

⁽¹⁾

ATX

Verify malfunction symptoms using the following diagnostic index, then go to the appropriate troubleshooting chart.

SYMPTOM DIAGNOSTIC INDEX - SKYACTIV-G (US)

Troubleshooting item	Description
i-stop warning light (amber) illuminates	i-stop warning light (amber) remains illuminated while engine is running.
i-stop warning light (amber) flashes	i-stop function is inhibited because an i-stop control system error is detected.
i-stop indicator light (green) flashes	i-stop indicator light (green) remains flashing during i-stop.
i-stop function does not operate	i-stop function does not operate when vehicle is stopped.
i-stop function operates under no engine-stop conditions	i-stop function operates even though system is turned off by pressing i-stop OFF switch. i-stop function operates even though vehicle conditions are for non-operation. i-stop function operates frequently while parking vehicle.
Engine does not restart	The engine does not restart after the engine was stopped by the i-stop control.
Limited i-stop function operation time	Frequency of which i-stop function operates is low. Frequent occurrence of engine restarting other than for driving vehicle from stop.
Ineffective operation of A/C during engine stop (i-stop system)	The A/C airflow temperature is too high or low compared with the set temperature while the i-stop function is operating.
Acceleration malfunction*	Acceleration from i-stop is not smooth. Suppresses (shock) when accelerating vehicle from i-stop. Engine vibration increases when engine is restarted.
Vehicle moves when accelerating from standstill on slope	Vehicle slips backwards on inclined road surface when accelerating after i-stop operates.