P0AA1 / INF233
P0AA1-233Description
Refer to the description for DTC P0AE6-225 (See HBC-452, "Description"). P0AE6 This circuit uses the hybrid vehicle control ECU to monitor the system main relays and stops the system if a malfunction is detected in the relays, because it may be impossible to shut off the high-voltage system if any of the relays becomes stuck.
DTC Logic
DTC Detection Logic
Diagnostic Procedure