Component Inspection

HEV Battery System
P1B25 High Voltage Path Fault - Inspection/Repair:_:Component Inspection

Component Inspection

Check the Safety Switch of the Hybrid Battery and Main Fuse :
1. Ignition OFF.
2. Remove Safety Plug, check that the High Voltage terminal Voltage is less than 30V.
3. Connect the Ohmmeter tester between high voltage connector terminals and the Safety Plug terminal.
4. Check Safety Plug terminal resistance.

Specification :the resistance value of a main fuse which is installed to Safety Plug internal : about 0.1 - 0.2Ohms

WARNING:
** Warning & Notice
Hybrid Battery system uses around 270V voltage.
It may cause death or damage due to electrical shock, if you do not follow below Instructions.
▪ Follows instructions of workshop manual.
▪ Wear and use insulated glooves and tools.
▪ IG "OFF", Disconnect ground cable of auxiliary battery and "OFF" the safety connector of the high voltage battery.
▪ Check high voltage terminal on Power Relay Assembly is lower than 30V.
▪ Be careful that it should not be short between terminals when measuring battery cell voltage. You may be injured due to spark, parts damage or electrical shock.
▪ Metalic material cause high voltage short that may cause damage of life or vehicle. Therefore, get rid of all the metalic material before working. (Metalic Material : Watch, Ring, any metalic products etc.)
▪ After disconnect W/H goes to BMS ECU from High voltage battery, be careful not to happen short between exposed terminal and terminal on high voltage connector.




















5. Is the measured resistance within specification ?