P0AAC

DTC P0AAC-123 Hybrid Battery Pack Air Temperature Sensor "A" Circuit

DESCRIPTION

DTC Detection Condition:

The intake air temperature sensor (battery) is mounted on the HV battery. The resistance of the sensor varies in accordance with changes in the intake air temperature. The characteristics of the intake air temperature sensor are the same as those of the battery temperature sensor. The battery smart unit uses signals from the intake air temperature sensor to control the air volume of the battery cooling blower assembly.






HINT: After confirming that DTC P0AAC is output, use the intelligent tester to check "BATT INSIDE AIR" in the HV ECU data list.

Wiring Diagram:

Step 1-3:

Step 3(Continued)-4:

Step 4(Continued)-5:

Step 5(Continued):

INSPECTION PROCEDURE

CAUTION:
- Before inspecting the high-voltage system, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.

HINT: Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.