[Previous][Next]
Inspection Procedure 12: Electric Shock During Battery Charging
 
 
 
 
PROBABLE CAUSES
  • Open circuit and damage in normal charging circuit or loose connector contact.
  • The AC power supply (supply side) is failed.
  • The on board charger/DC-DC converter is failed.
  • Ground line open circuit and damage in normal charging cable.
  • Ground malfunction of the vehicle side or the household charging facility
 
 
 
 
DIAGNOSIS
Required Special Tools
  • MB991223: Wiring harness set
  • MB992006: Extra fine probe
STEP 1. Check the customer's domestic AC power source.
Is the outlet with the ground used?
Go to Step 2.
Use the outlet with the ground.
 
STEP 2. Check charging cable itself
  • Check charging cable (Refer to ).
Is the check result normal?
Go to Step 3.
Replace the charging cable.
 
STEP 3. Check of open circuit and damage in body ground line between normal charging connector and body ground.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. Check the normal charging connector for the insulation resistance.
dangerWhen high voltage system components are serviced, be sure to pull service plugs to shut down high voltage before serving (Refer to ).
dangerWhen pulling service plugs, wear the specified protective equipment (Refer to ).
cautionWhen the insulation resistance is measured, set the range of the special tool electric insulation tester (MB992355) to 500 volts. When the insulation resistance is measured at the range more than 500 volts, the component may be damaged.
(1) Use the special tool electric insulation tester (MB992355) to set the range to 500 volts.
(2) Check the insulation resistance between normal charging connector (COLD line and HOT line) and body ground.
OK: 10 MΩ or more
Is the check result normal?
Go to Step 7.
Go to Step 5.
 
STEP 5. Check the normal charging connector for the insulation resistance.
dangerWhen high voltage system components are serviced, be sure to pull service plugs to shut down high voltage before serving (Refer to ).
dangerWhen pulling service plugs, wear the specified protective equipment (Refer to ).
cautionWhen the insulation resistance is measured, set the range of the special tool electric insulation tester (MB992355) to 500 volts. When the insulation resistance is measured at the range more than 500 volts, the component may be damaged.
(1) Disconnect the on board charger/DC-DC converter connector.
(2) Use the special tool electric insulation tester (MB992355) to set the range to 500 volts.
(3) Check the insulation resistance between normal charging connector (COLD line and HOT line) and body ground.
OK: 10 MΩ or more
Is the check result normal?
Go to Step 6.
Replace the EV charger cable.
 
STEP 6. Check the normal charging connector for the insulation resistance.
dangerWhen high voltage system components are serviced, be sure to pull service plugs to shut down high voltage before serving (Refer to ).
dangerWhen pulling service plugs, wear the specified protective equipment (Refer to ).
cautionWhen the insulation resistance is measured, set the range of the special tool electric insulation tester (MB992355) to 500 volts. When the insulation resistance is measured at the range more than 500 volts, the component may be damaged.
(1) Connect the on board charger/DC-DC converter connector.
(2) Use the special tool electric insulation tester (MB992355) to set the range to 500 volts.
(3) Check the insulation resistance between normal charging connector (COLD line and HOT line) and body ground.
OK: 10 MΩ or more
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the on board charger/DC-DC converter (Refer to ).
 
STEP 7. Check the trouble symptom.
Is the check result normal?
Check the power supply system for home use (ground circuit).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).