After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
After the engine switch is turned off and the ODO meter display turns off, the protection relay in the sub-battery module assembly opens and the voltage between the +BAT and -BAT terminals drops to 0 V.
The nickel-metal/hydrogen battery of the sub-battery module assembly is maintained in the charging condition. Therefore, if there is damage to the upper case, do not allow any metal particles to be taken near the battery. Sparks may occur due to a short.