P0AAC

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

DESCRIPTION

DTC Detection Condition:

The intake air temperature sensor is provided on the HV battery assembly. Its resistance value varies with the changes in the intake air temperature. The characteristics of the intake air temperature sensor are the same as the battery temperature sensors.

The battery ECU uses the signals from the intake air temperature sensor for adjusting the air flow speed of the battery blower.






HINT: After confirming DTC P0AAC, enter the following menus on the intelligent tester: DIAGNOSIS / OBD/ MOBD / HV BATTERY / DATA LIST. Then, confirm the temperature of the intake ambient air to the battery pack by checking "BATT INSIDE AIR".

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

If the temperature indicated by the intake air temperature sensor is lower than the standard level (open), or is higher than the standard level (short), the battery ECU determines that a malfunction has occurred. If the battery ECU detects an abnormal intake air temperature, it will illuminate the MIL and set a DTC.

Wiring Diagram:

Step 1-2:

Step 2(Continued):

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 servicing 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 are required to discharge the high-voltage condenser inside the inverter.