Timer Charging Does Not Stop At The Set Departure Time

WARNING: This page is about a different variant/trim than selected.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to PLUG-IN BATTERY CHARGER (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

CHECK DTC .
Using the Subaru Select Monitor, read all DTCs. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .

Are any DTCs displayed?

Yes : Perform the diagnosis for the displayed DTCs.

No : Go to 2.
CHECK DATA MONITOR .
1. Using the Subaru Select Monitor, display the following items in the [Work Support] of [Plug-in Battery Charger]. Ref. to PLUG-IN BATTERY CHARGER (DIAGNOSTICS)>WORK SUPPORT .
  - Vehicle Ctl. Hist.
2. Using the Subaru Select Monitor, display the following items in the [Work Support] of [P-HEV Hybrid Powertrain Control]. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>WORK SUPPORT .
  - Vehicle Ctl. Hist.
3. Check the vehicle control history.
Is the vehicle control history displayed?

Yes : Go to the vehicle control history.
- Plug-in Battery Charger Ref. to PLUG-IN BATTERY CHARGER (DIAGNOSTICS)>WORK SUPPORT .
- P-HEV Hybrid Powertrain Control Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>WORK SUPPORT .
No : Go to 3.

REPRODUCTION TEST (TIMER SETTING) .

CAUTION:

Perform charging with an AC power supply that was confirmed to operate normally.
Select an AC power supply (120 V or 240 V) that is the same as the power supply used by the customer.

NOTE: When setting a departure time, set a time after considering the current HV battery SOC.
Procedure for setting timer charging:
Select the MFD "Settings screen" → "Charge settings" → "Charge timer settings" to display the change screen, then configure the timer charging settings.
Timer charging activates according to the set date (year, month, day) and MFD time.

Using the Subaru Select Monitor, perform all memory clear. Ref. to COMMON (DIAG)>CLEAR MEMORY .
Using the Subaru Select Monitor, display the following items in the [Work Support] of [Plug-in Battery Charger]. Ref. to PLUG-IN BATTERY CHARGER (DIAGNOSTICS)>WORK SUPPORT .
- Vehicle Ctl. Hist.
Using the Subaru Select Monitor, clear all memory of [Vehicle Ctl. Hist.]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
Using the Subaru Select Monitor, display the following items in the [Work Support] of [P-HEV Hybrid Powertrain Control]. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>WORK SUPPORT .
- Vehicle Ctl. Hist.
Using the Subaru Select Monitor, clear all memory of [Vehicle Ctl. Hist.]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
Using the Subaru Select Monitor, display the following items in the [Data Monitor] of [P-HEV Hybrid Powertrain Control]. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DATA MONITOR .
- Hybrid Battery SOC

Read the data monitor, and check that the HV battery SOC is less than 70%.

NOTE: If the HV battery SOC is 70% or more, perform driving in EV mode or use other means to discharge the HV battery and reduce the SOC to less than 70%.

Item name	Item explanation	Display range	Standard
Hybrid Battery SOC	Indicates the battery capacity.	0.00 - 100.00%	0.00 - 100.00%: Always

Check whether the date and time displayed on the MFD are correct, and adjust them if necessary.
Use the MFD to register a timer charging schedule with set departure time.
Turn the ignition to OFF.
Connect the Electric vehicle charger cable assembly and perform timer charging until the set departure time is reached.
Turn to IG ON.
Using the Subaru Select Monitor, read all DTCs. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .
Using the Subaru Select Monitor, display the following items in the [Work Support] of [Plug-in Battery Charger]. Ref. to PLUG-IN BATTERY CHARGER (DIAGNOSTICS)>WORK SUPPORT .
- Vehicle Ctl. Hist.
Using the Subaru Select Monitor, display the following items in the [Work Support] of [P-HEV Hybrid Powertrain Control]. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>WORK SUPPORT .
- Vehicle Ctl. Hist.

If a DTC is displayed, go to A.

If a DTC is not displayed and a vehicle control history is displayed, go to B.

If no DTC or vehicle control history is displayed, and charging is not completed by the set timer departure time, go to C.

If no DTC or vehicle control history is displayed, and charging is completed by the set timer departure time, go to D.

Yes :

Perform the diagnosis for the displayed DTCs.
Go to the vehicle control history.
- Plug-in Battery Charger Ref. to PLUG-IN BATTERY CHARGER (DIAGNOSTICS)>WORK SUPPORT .
- P-HEV Hybrid Powertrain Control Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>WORK SUPPORT .
Analyze the cause (vehicle cause).
Analyze the cause as shown below.
- Battery (12V) deterioration
  - Check the Battery (12V). Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
- Accuracy of remaining charging time display
  - Explain that the remaining charging time display is an approximate guide, and may deviate due to causes such as the temperature of the HV battery during charging.
- Prioritizing full charge (when the timer setting is the set departure time)
  - Explain that when the air conditioner is started before the departure time that is set in the timer settings, charging may continue after the set departure time was reached.
Analyze the cause (environment or user cause).

Analyze the cause as shown below in order: environment → user.

NOTE: Because the purpose of setting a departure time is to complete charging before departure, charging is performed so as to complete charging earlier than the set time.

Environment

Low power level due to low AC voltage on charger side
- Ask questions to customer and check charger.
- Explain that the charging time will be longer when the AC voltage is low.
Low power level due to control on charger side
- Ask questions to customer and check charger.
- Explain that power restrictions on the charger side may cause charging times to become longer. (Check using the charger instruction information.)
Paused due to power outage during charging.
- Explain that charging stops when there is a power outage and that it resumes when power is restored.
Reduced charging control power or changes in predicted charging time resulting from outdoor air temperature and temperature of the HV battery
- Explain that when the temperature of the HV battery changes, the charging time may become longer.
- In particular when the outdoor air temperature is low, the HV battery heater operates in order to ensure EV traveling distance and results in a longer charging time.
Abnormal heating of the power plug was detected.
- Explain that when abnormal heating at the outlet and power plug connector occurs during charging, the charging current may be restricted based on detection of the temperature inside the power plug, resulting in a longer charging time.
- Check that there is no deterioration of the outlet and no looseness in the power plug connection.

User

The vehicle time or date is incorrect.
- Adjust the vehicle time and date to the correct values.
The timer settings are incorrect.
- Ask questions to customer and explain method of use.
- Check with the instruction information or other material.
The air conditioner link setting was ON.
- Explain that when the air conditioner link setting is ON, the air conditioner will activate before the registered departure time. The resulting consumption of electrical power by the air conditioner may prevent charging from being completed by the set time.
The departure time was set to a time that is close to the current time.
- Explain that charging will start immediately when there is not sufficient time before the set departure time.
Large power consumption resulting from failure to turn off headlights or use of other accessories
- Explain that power consumption by accessories may cause charging times to become longer.
Selection of wrong charging mode
- Ask questions to customer and explain method of use.
- Explain that when the charging mode is "Start time", charging starts at the set time. When the mode is "Departure time", charging is performed so that it is completed at the set time.

No : -