DTC P0A81-00: Hybrid/EV Battery Cooling Fan 1 Control Circuit High; DTC P0A81-15: Hybrid/EV Battery Cooling Fan 1 Circuit Short to Auxiliary Battery or Open [02/2019 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK DTC OUTPUT (HYBRID CONTROL)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result

Result	Proceed to
P0AFC-00 or P0AFC-96 is not output.	A
P0AFC-00 or P0AFC-96 is output.	B

Turn the ignition switch off.

Result:

B

GO TO DTC CHART (HYBRID CONTROL SYSTEM)

Refer to DIAGNOSTIC TROUBLE CODE CHART [02/2019 - 06/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [06/2020 - 12/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - 11/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2024 - ]

Result:

A

See step 2

CHECK BATTERY VOLTAGE SENSOR (FREQUENCY)
Refer to PROCEDURE - Step 6 [02/2019 - 06/2020] , or refer to PROCEDURE - Step 6 [06/2020 - ]

Result

Proceed to

OK

NG

Result:

OK

REPLACE BATTERY COOLING BLOWER ASSEMBLY

Refer to REMOVAL [11/2018 - ]

Result:

NG

REPLACE BATTERY VOLTAGE SENSOR

Refer to REMOVAL [02/2019 - 10/2019] , or refer to REMOVAL [10/2019 - 08/2020] , or refer to REMOVAL [08/2020 - 12/2021] , or refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]