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INSPECTION PROCEDURE 5: Too much electric current consumption (the cruising rage is short, the main drive lithium-ion battery capacity decreases rapidly, or the difference between a theoretical remaining cruising range displayed on the instrument and an actual cruising range is large)
 
 
 
 
COMMENTS ON TROUBLE SYMPTOM
The following causes are suspected.
  • Ambient temperature is low during charging.
  • Harsh driving which consumes the main drive lithium-ion battery
  • The air conditioning is used severely.
  • Operation of the balancer function is infrequent.
 
 
 
PROBABLE CAUSES
  • The tire inflation pressures are low.
  • Brake drag
  • Malfunction of wheel alignment
 
 
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check the data list. <BMU>
Check that the following data list battery management unit (BMU) (Refer to ).
  • Item No. 22: BAT.cell voltage difference MAX
OK: Less than 0.02 V
Is the check result normal?
Go to Step 5.
Go to Step 2.
 
STEP 2. Using scan tool (M.U.T.-IIISE), check the actuator test. <BMU>
(1) Execute the following actuator tests (Refer to ).
  • Item No. 2: BAT.cell voltage difference MAX
(2) Check that the following data list battery management unit (BMU) (Refer to ).
  • Item No. 249 - 256: <CMU ID01> Cell 000 Balancer drive - Cell 007 Balancer drive
  • Item No. 261 - 268: <CMU ID02> Cell 012 Balancer drive - Cell 019 Balancer drive
  • Item No. 273 - 280: <CMU ID03> Cell 024 Balancer drive - Cell 031 Balancer drive
  • Item No. 285 - 292: <CMU ID04> Cell 036 Balancer drive - Cell 043 Balancer drive
  • Item No. 297 - 304: <CMU ID05> Cell 048 Balancer drive - Cell 055 Balancer drive
  • Item No. 321 - 328: <CMU ID07> Cell 072 Balancer drive - Cell 079 Balancer drive
  • Item No. 333 - 340: <CMU ID08> Cell 084 Balancer drive - Cell 091 Balancer drive
  • Item No. 345 - 352: <CMU ID09> Cell 096 Balancer drive - Cell 103 Balancer drive
  • Item No. 357 - 364: <CMU ID10> Cell 108 Balancer drive - Cell 115 Balancer drive
  • Item No. 369 - 376: <CMU ID11> Cell 120 Balancer drive - Cell 127 Balancer drive
OK: ON
Is the check result normal?
Go to Step 3.
Use scan tool (M.U.T.-IIISE) to check whether the PHEV-ECU-related DTC is set (Refer to ).
 
STEP 3. Using scan tool (M.U.T.-IIISE), check the data list. <BMU>
Check that the following data list battery management unit (BMU) (Refer to ).
  • Item No. 5: Battery cell minimum voltage
OK: 3.5 V or more
Is the check result normal?
Drive the balancer (Refer to ). Then go to Step 4 .
Charge the main drive lithium-ion battery. Two hours later, go to Step 4.
 
STEP 4. Using scan tool (M.U.T.-IIISE), check the data list. <BMU>
Check that the following data list battery management unit (BMU) (Refer to ).
  • Item No. 22: BAT.cell voltage difference MAX
OK: Less than 0.02 V
Is the check result normal?
Go to Step 8.
Return to Step 3.
 
STEP 5. Check the tire pressure.
noteFor information on tire inflation pressure, refer to the label attached to the center pillar on the driver's side.
Is the check result normal?
Go to Step 6.
  • Adjust the tire pressure.
 
STEP 6. Check wheel alignment
Check the front wheel alignment and rear wheel alignment (Refer to GROUP 33 - Front Wheel Alignment Check and Adjustment or GROUP 34 - Rear Wheel Alignment Check and Adjustment ).
Is the check result normal?
Go to Step 7.
Adjust the wheel alignment (Refer to GROUP 33 - Front Wheel Alignment Check and Adjustment or Refer to GROUP 34 - Rear Wheel Alignment Check and Adjustment ).
 
STEP 7. Check brake drag force.
Refer to GROUP 35A - Brake Drag Check .
Is the check result normal?
Go to Step 8.
Disassemble the brake caliper assembly and check for fouling and rust on the piston sliding section and deterioration of piston seal, and check the sliding status of the guide pin and lock pin (Refer to GROUP 35A - Front Disc Brake or Rear Disc Brake ).
 
STEP 8. Check the main drive lithium-ion battery charge level.
Measure the main drive lithium-ion battery charge level (Refer to ).
Is the check result normal?
The procedure is complete.
Charge the main drive lithium-ion battery by the normal charging process again.