Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014UER
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 - 09/2018]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0A8196; Hybrid/EV Battery Cooling Fan 1 Component Internal Failure; 2018 MY Camry HV [07/2017 - 09/2018]

DTC

P0A8196

Hybrid/EV Battery Cooling Fan 1 Component Internal Failure

DESCRIPTION

Refer to the description for DTC P0A8111.

Click here 2018 MY Camry HV [07/2017 - 09/2018]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0A8111; Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground+

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0A8196

Hybrid/EV Battery Cooling Fan 1 Component Internal Failure

The battery cooling blower assembly is malfunctioning and the actual speed is not within the specified range of the target speed calculated by the ECU.*

*: This DTC is not stored when "Hybrid Battery Cooling Fan 1 Frequency" is excessively low or high.

(1 trip detection logic)
  • Battery cooling blower assembly
  • Battery voltage sensor
  • Hybrid vehicle control ECU assembly
  • No. 1 HV battery intake filter
  • No. 1 Hybrid battery intake duct
  • No. 1 Hybrid battery intake duct LH
  • Wire harness or connector

Does not come on

Master Warning Light:

Comes on

Related Data List

DTC No.

Data List

P0A8196
  • Hybrid Battery Cooling Fan 1 Drive Request
  • Hybrid Battery Cooling Fan 1 Drive Status
  • Hybrid Battery Cooling Fan 1 Frequency

The following items can be helpful when performing repairs:

Data List

  • Hybrid Battery Temperature 1 to 3
  • BATT Voltage

HINT:

"Hybrid Battery Cooling Fan 1 Frequency" is detected when the battery cooling blower assembly is operating and its value changes in proportion to the battery cooling blower assembly rotation speed.

CONFIRMATION DRIVING PATTERN

HINT:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): UTILITY

  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the power switch off and wait for 2 minutes or more.
  5. Turn the power switch on (READY) and turn the Techstream on.
  6. Enter the following menus: Powertrain / Hybrid Control / Active Test / Control the Hybrid Battery Cooling Fan.
  7. Operate the battery cooling blower assembly in each fan mode, 1 through 6, for 60 seconds or more.

    HINT:

    Operation of the battery cooling blower assembly can be confirmed by checking if air is sucked into the air intake port of the intake duct.

  8. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
  9. Check the DTC judgment result.

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE or N/A, perform driving pattern again.

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A8111.

Click here 2018 MY Camry HV [07/2017 - 09/2018]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0A8111; Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground+

CAUTION / NOTICE / HINT

CAUTION:

  • Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
    • Inspecting the high-voltage system
    • Disconnecting the low voltage connector of the inverter with converter assembly
    • Disconnecting the low voltage connector of the HV battery
  • To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.
  • After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
  • After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.

    Click here 2018 - 2020 MY Camry HV [07/2017 - 10/2020]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): PRECAUTION

    HINT:

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

    *a

    Without waiting for 10 minutes

NOTICE:

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

Click here 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

1.

CHECK DTC OUTPUT (HYBRID CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to

"P0AFC00 or P0AFC96" is not output.

A

"P0AFC00 or P0AFC96" is also output.

B

(e) Turn the power switch off.

B

GO TO DTC CHART (HYBRID CONTROL SYSTEM)

A

2.

CHECK DUCT AND BLOWER

CAUTION:

Be sure to wear insulated gloves.

(a) Check that the service plug grip is not installed.

NOTICE:

After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

(b) Remove the rear seat cushion leg sub-assembly.

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; HYBRID / BATTERY CONTROL: BATTERY BLOWER: REMOVAL+

(c) Check that the No. 1 HV battery intake filter, battery cooling blower assembly, No. 1 hybrid battery intake duct and No. 1 hybrid battery intake duct LH are not disconnected, damaged, or clogged with foreign matter.

*1

No. 1 HV Battery Intake Filter

*2

Battery Cooling Blower Assembly

*3

No. 1 Hybrid Battery Intake Duct

*4

No. 1 Hybrid Battery Intake Duct LH

OK:

The No. 1 HV battery intake filter, No. 1 hybrid battery intake duct, No. 1 hybrid battery intake duct LH and battery cooling blower assembly blower are not disconnected, damaged, or clogged with foreign matter.

(d) Install the rear seat cushion leg sub-assembly.

NG

CORRECT THE PROBLEM
OK

3.

CHECK HARNESS AND CONNECTOR (BATTERY VOLTAGE SENSOR - BATTERY COOLING BLOWER ASSEMBLY)

Click here 2018 MY Camry HV [07/2017 - 09/2018]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0A8111; Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground+

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - BATTERY COOLING BLOWER ASSEMBLY)

Click here 2018 MY Camry HV [07/2017 - 09/2018]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0A8111; Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground+

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

5.

CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (GROUND SHORT CHECK)

(a) Remove the hybrid vehicle control ECU assembly.

Click here 2018 - 2020 MY Camry HV [07/2017 - 10/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

K70-29 (SI0) - K69-5 (E01)

Power switch off

10 kΩ or higher

K70-29 (SI0) - K70-5 (E02)

Power switch off

10 kΩ or higher

*a

Component without harness connected

(Hybrid Vehicle Control ECU Assembly)

(c) Install the hybrid vehicle control ECU assembly.

NG

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

OK

6.

READ VALUE USING TECHSTREAM (COOLING FAN FREQUENCY)

Click here 2018 MY Camry HV [07/2017 - 09/2018]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0A8111; Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground+

Result

Proceed to

Both of the value in the Data List (Hybrid Battery Cooling Fan 1 Frequency) and the actual measured value at the battery voltage sensor connector are 0 Hz.

A

Other than above

B
B

GO TO STEP 8

A

7.

CHECK BATTERY VOLTAGE SENSOR

Click here 2018 MY Camry HV [07/2017 - 09/2018]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0A8111; Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground+

OK

REPLACE BATTERY COOLING BLOWER ASSEMBLY

NG

REPLACE BATTERY VOLTAGE SENSOR

8.

CHECK BATTERY VOLTAGE SENSOR (FREQUENCY)

Click here 2018 MY Camry HV [07/2017 - 09/2018]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P0A8111; Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground+

OK

REPLACE BATTERY COOLING BLOWER ASSEMBLY

NG

REPLACE BATTERY VOLTAGE SENSOR