IBST-D108
IBST_d108_micInitSpiTstFld
What does IBST-D108 mean?
Tesla diagnostic code in the Integrated Brake System (IBST) module. The Serial Peripheral Interface (SPI) failure detection unit of each Application-specific integrated circuit (ASIC) (system ASIC / Valve ASIC / RFP ASIC) is tested for correct detection and response of parity, address, and clock failures on the SPI protocol. The initial test of the SPI failure detection functionality in any ASIC inside the electronic control unit (ECU) failed (SPI address Read / Write test, SPI parity test, and SPI clock test). This could indicate that wrong data is being sent to the ASIC or there is a defect in the SPI transceiver or the SPI lines.
Original Description
The Serial Peripheral Interface (SPI) failure detection unit of each Application-specific integrated circuit (ASIC) (system ASIC / Valve ASIC / RFP ASIC) is tested for correct detection and response of parity, address, and clock failures on the SPI protocol. The initial test of the SPI failure detection functionality in any ASIC inside the electronic control unit (ECU) failed (SPI address Read / Write test, SPI parity test, and SPI clock test). This could indicate that wrong data is being sent to the ASIC or there is a defect in the SPI transceiver or the SPI lines.
Severity Notes
IBST-D108 is a diagnostic or informational code in the Integrated Brake System system. Typically no immediate action is required.