DTC P3000-388: HV Battery Malfunction: Procedure

CHECK DTC OUTPUT (HV)
1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.
  Result
  
  DTCs other than P3000-388 or P3000-389 are output.
YES → GO TO DTC CHART

NO: Go to next step
CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)
1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.
4. Check if DTCs are output.
  Result
  
  Engine control system DTCs are output.
YES → GO TO DTC CHART

NO: Go to next step
CHECK AMOUNT OF GASOLINE
1. Turn the power switch on (IG).
2. Check the amount of fuel by referring to the fuel gauge in the meter.
  OK
  
  Proper amount of fuel is in the tank.
NG → REFUEL VEHICLE

OK: Go to next step
CHECK ENGINE START
1. Turn the power switch on (READY).
2. Check if the engine starts.
  HINT:
  
  Depressing the accelerator pedal with the shift lever in the P position will cause the engine to start.
  
  OK
  
  The engine starts.
  
  HINT:
  - Do not turn the power switch on (READY) and off repeatedly because this may cause DTC P3000-389 to be set.
  - Turning the power switch on (READY) and off repeatedly while the SOC is low may cause the SOC to drop further, resulting in DTC P3000-389 being set. Charge the HV battery using the THS charger as necessary.
  - Cranking the engine once causes the SOC to drop approximately 1%.
  - Charging the HV battery once (10 minutes) using the THS charger restores the SOC approximately 2%.
NO → CHARGE HV BATTERY (CHECK THAT ENGINE STARTS)

YES → LEAVE VEHICLE IN P POSITION, AND CHARGE HV BATTERY IN IDLE STATUS UNTIL IDLING STOPS