DTC P0AA1-233: Hybrid Battery Positive Contactor Circuit Stuck Closed [11/2016 - ]: Description
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
Refer to the description for DTC P0AE6-225.
Refer to DESCRIPTION
This circuit uses the hybrid vehicle control ECU assembly 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 No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P0AA1-233 | Hybrid Battery Positive Contactor Circuit Stuck Closed | System main relay stuck closed malfunction (HV battery positive (+) and negative (-) terminal side) (1 trip detection logic) |
|
Does not come on | Master Warning Light: Comes on |
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P0AA1-233 |
|
The following items can be helpful when performing repairs:
Data List
- SMRP Status
- SMRB Status
- SMRG Status