STEP 3. Check the normal charging connector for the insulation resistance.
danger | When high voltage system components are serviced, be sure to pull service plugs to shut down high voltage before serving (Refer to ). |
danger | When pulling service plugs, wear the specified protective equipment (Refer to ). |
caution | When 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 connector, and measure at the wiring harness side.
(2) Disconnect the on board charger/DC-DC converter connector.
(3) Use the special tool electric insulation tester (MB992355) to set the range to 500 volts.
(4) 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?
Replace the on board charger/DC-DC converter (Refer to ). Replace the harness between normal charging connector (COLD line and HOT line) and on board charger/DC-DC converter connector.