P2521

DTC P2520-782 A/C Request "A" Circuit Low
DTC P2521-783 A/C Request "A" Circuit High

DESCRIPTION

DTC Detection Condition:

If the output current becomes excessively large, the DC/DC converter requests the blower motor to stop via an IDH signal.

Step 1:

INSPECTION PROCEDURE

CAUTION:
- Before inspecting the high-voltage system, take safety precautions to prevent electrical shocks, such as wearing insulated gloves and removing the service plug grip. After removing the service plug grip, put it in your pocket to prevent other technicians from reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 5 minutes before touching any of the high-voltage connectors or terminals.

HINT: At least 5 minutes is required to discharge the high-voltage capacitor inside the w/ converter inverter assembly.