The HECU monitors the operation of the IC components such as memory, register, A/D converter and so on.
The ECU sets this code when the EEPROM data read by the master processor is different than prior data written, or when the master/slave processor detects abnormal operation in RAM, Status Register, Interrupt, Timer, A/D converter or cycle time.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Internal Monitoring | 1. Faulty HECU |
MonitoringPeriod |
•
Continuous | |
Enable Conditions |
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If Internal control unit failures of the master/slave processor or peripheral integrated circuits is detected | |
Fail Safe |
•
he ABS/EBD/ESP(ESC) functions are inhibited
•
The ABS/EBD/ESP(ESC) warning lamps are activated |
