DTC P2520-782 A/C Request "A" Circuit Low; DTC P2521-783 A/C Request "A" Circuit High: Description
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
If the output current becomes excessively large, the DC/DC converter requests the blower motor to stop via an IDH signal.
DTC DETECTION CONDITION - TROUBLE AREA CHART
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P2520 | 782 | Open or GND short in A/C blower motor operation inhibition request (IDH) signal circuit |
|
| P2521 | 783 | +B short in A/C blower motor operation inhibition request (IDH) signal circuit |
|