DTC P0A82-123: Hybrid Battery Pack Cooling Fan 1 Performance / Stuck OFF: Procedure

B → See step   9 

A: Go to next step 

1. Check that the No. 1 hybrid battery intake duct and battery cooling blower are not disconnected, damaged, or clogged with foreign objects, and that the acoustical materials have not peeled.
   Fig 1: Identifying No. 1 Hybrid Battery Intake Duct

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	No. 1 Hybrid Battery Intake Duct

   OK

   The duct and blower are not disconnected, damaged, or clogged with foreign objects and the acoustical materials have not peeled.

NG → CORRECT THE PROBLEM 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   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.

2. Disconnect connector A38 from the power management control ECU. Refer to REMOVAL .
3. Remove the front luggage compartment trim cover. Refer to REMOVAL - Step 6 .
4. Disconnect connector r1 from the battery cooling blower assembly.
5. Measure the resistance according to the value(s) in the table below.
   Fig 2: Identifying Battery Cooling Blower Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Specified Condition
   r1-3 (SI0) or A38-29 (SI0) - Body ground	10 kΩ or higher
   r1-3 (SI0) - A38-29 (SI0)	Below 1 Ω

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   *a	Front view of wire harness connector (to Battery Cooling Blower Assembly)
   *b	Rear view of wire harness connector (to Power Management Control ECU)

   NOTE:

   When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder.

6. Connect the battery cooling blower assembly connector.
7. Install the front luggage compartment trim cover.
8. Connect the power management control ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the power management control ECU. Refer to REMOVAL .
2. Measure the resistance according to the value(s) in the table below.
   Fig 3: Identifying Power Management Control ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Specified Condition
   A38-29 (SI0) - I3-5 (E01)	10 kΩ or higher
   A38-29 (SI0) - I4-5 (E02)	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Power Management Control ECU)

3. Install the power management control ECU.

NG → See step   10 

OK: Go to next step 

1. Check that the service plug grip is not installed.
   NOTE:

   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.

2. Remove the front luggage compartment trim cover. Refer to REMOVAL - Step 6 .
3. Connect the cable to the negative (-) auxiliary battery terminal.
4. Connect the Techstream to the DLC3.
5. Turn the power switch on (IG).
   NOTE:

   • 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.
   • If the power switch is turned on (IG) with the service plug grip removed, DTC P0A0D-350 for the interlock switch system will be stored. If this DTC is output, clear the DTC using the Techstream. Refer to DTC CHECK / CLEAR .
6. Enter the following menus: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.
   NOTE:

   If the Active Test cannot be performed, skip it and proceed to the next step to check Frequency. In accordance with fail-safe system operation, the power management control ECU sends a command to operate the battery cooling fan.

7. Enter the following menus: All Data / Cooling Fan Frequency 1.
8. Select each air volume mode (1 to 6) in the "Driving the Battery Cooling Fan" Active Test to operate the battery cooling blower assembly.
9. While the cooling fan is operating, compare the value in the data list (Cooling Fan Frequency 1) with the Frequency value that was actually measured at the battery cooling blower assembly connector.
   Fig 4: Identifying r1 Battery Cooling Blower Assembly Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard

   Tester Connection	Condition	Specified Condition
   r1-2 (FP0) - r1-4 (GND0)	Battery cooling blower is operating	Difference between the value in the Data List (Cooling Fan Frequency 1) and the actual measurement value is 10 % or less.

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   *a	Component with harness connected (Battery Cooling Blower Assembly)
   *b	Rear view of wire harness connector (to Battery Cooling Blower Assembly)

   NOTE:

   Turning the power switch on (IG) with the service grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

   HINT: 

   Compare the values in each air volume mode (1 to 6). If the active test cannot be performed, compare the values only in the current air volume mode.

10. Turn the power switch off.
11. Disconnect the cable from the negative (-) auxiliary battery terminal.
12. Install the front luggage compartment trim cover.

NG → See step   8 

OK → See step   7