The HV control ECU monitors internal operations and detects a malfunction.
DTC No.
INF Code
DTC Detection Condition
Trouble Area
P0A1D
143
ECU internal error
HV control ECU
MONITOR DESCRIPTION
The HV control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. Read and write values at the inside of the HV control ECU memory, are compared by one of these monitors, which have been indicated by the transponder key. If those two values are inconsistent with each other, the HV control ECU interprets this as an ECU memory failure of the HV control ECU. The HV control ECU illuminates the MIL and sets a DTC.
