Open Beta Status

Known Firmware Issues:

Issue: Some vehicles experience intermittent P1576 issue, due to voltage mismatch between VPIN and MCM'E'.


-Note spoofed pack voltage presented by LiBCM's 4x20 display (the voltage in parenthesis).

-Note IMA pack voltage presented by OBDIIC&C display.

-Subtract OBDIIC&C pack voltage from LiBCM pack voltage.

-Change "MCME_VOLTAGE_OFFSET_ADJUST" parameter (in config.h) to the above result.

Fix: Known hardware issue with MCM's leakage current test routine. The above workaround will resolve this issue on a car-by-car basis.

Issue: The dashboard state-of-charge gauge does not work.

Workaround: LiBCM's SoC is shown on the 4x20 LCD display.

Fix: Need to decipher BATTSCI/METSCI data to find 'magic' byte.

Issue: BCM-specific Pcodes are not implemented. In a fault condition, LiBCM always issues P1648, which safely disables the IMA system.

Workaround: None required.

Fix: Program fault codes

Issue: User-configurable settings aren't runtime configurable.

Workaround: Configure settings in config.h, then re-upload firmware.

Fix: Requires LiDisplay touch screen.

Issue: LiBCM presently only monitors the QTY3 battery temperature sensors. The intake/ambient/exhaust/etc sensors are not presently measured.

Workaround: None required.

Fix: A future firmware update will more intelligently control the fans, based on intake/ambient/exhaust temperatures.

Issue: Firmware doesn't have extensive power-saving features yet, so the battery state of charge will decrease ~1% per 24 hour period.

Workaround: If the battery SoC drops below 10%, LiBCM will turn itself off to prevent further discharge.

Fix: A future firmware update will reduce idle power consumption.

Known Hardware Issues:

Issue: On MIMA-equipped vehicles, the brake lights and three green LEDs on MIMA display remain lit.

Workaround: Disconnect the brake light wire (so the brake light isn't stuck on). Both MIMA & LiBCM will otherwise work as normal.

Fix: Minor hardware change (TBD) required on the MIMA PCB.

Issue (RevC hardware only): If the OEM grid charger (that ships with LiBCM) is replaced with a higher current charger, the power control circuit could overheat while grid charging.

Workaround: Use the standard grid charger that shipped with all RevC LiBCM hardware, which isn't affected by this issue;

Beta customers that wish to use higher current grid chargers can swap their RevC PCB out for a RevD PCB for a nominal fee. The RevC PCB will then be sold to a customer that doesn't require a high current grid charger.