Check the battery management system control unit
1 | Establish communication with battery management system control unit. |
2 | In the battery management system control unit, select menu item "Fault codes and events" and check the fault memory for the following fault codes: |
P0AA700 The ohmmeter for insulation resistance in the high-voltage battery module has an electrical fault.
If the listed fault code (P0AA700) is currently present, the insulation resistance measurement must be conducted in the battery management system (at Actuations).
If the measurement result of the insulation resistance measurement is OK, the fault code can be ignored.
If the measurement result of the insulation resistance measurement is not OK, safe transport of the high-voltage battery module is no longer permissible. In this case, the responsible MPC/general distributor should be contacted without delay.
P0A1F00 There is an internal fault in the battery control unit.
P0A7E00 The high-voltage battery module has overtemperature.
P142900 There is a battery-internal insulation warning in the high-voltage battery module.
If one of the listed fault codes (items 1 to 4) is current, there is an internal fault, and safe transport of the high-voltage battery module is no longer permissible. In this case, the responsible MPC/general distributor should be contacted without delay.
(P0E7400) There is a battery-internal insulation fault in the high-voltage battery module.
If the listed fault code (item 5) is current or stored, there is an insulation fault, and safe transport of the high-voltage battery module is no longer permissible. In this case, the responsible MPC/general distributor should be contacted without delay.
P0AA100 The positive terminal contact of the contactor in the high-voltage battery is jammed closed.
P0AA400 The negative pole contact of the contactor in the high-voltage battery is jammed closed.
If one of the listed fault codes (item 6 or 7) is current, safe transport of the high-voltage battery module is permissible, taking all other assessment criteria into account, provided that the high-voltage plugs are equipped with voltage-proof cover caps that are additionally fixed in place using fabric tape.
If both fault codes (items 6 and 7) are current, safe transport of the high-voltage battery module is no longer permissible. In this case, the responsible MPC/general distributor should be contacted without delay.