DTC P0AD0-123: Hybrid Battery Pack Cooling Fan 3 Performance / Stuck OFF: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Read output DTCs. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   P0AD0-123 only is output	A
   P0AFC-123 is output	B
   Any of P0A84-123, P0A85-123, P0A99-123, P0A9A-123, P0AD2-123 and P0AD3-123 are output	C

B → See step   7 

C → See step   8 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Enter the following menus: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.

   HINT: 

   Check Cooling Fan Mode3 in the Data List. If the mode is 6, it is not necessary to perform the Active Test.

4. Enter the following menus: All Data / VMF Fan Motor Voltage1 to 3.
5. Check that the Data List value VMF Fan Motor Voltage3 is abnormal while operating the cooling fans (battery cooling blower assemblies). (*1)
6. Disconnect the cable from the negative (-) battery terminal.
7. Check that the service plug grip is not installed.
   NOTE:

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

8. Remove the battery cover and replace the battery cooling blower assembly (No. 2) with another battery cooling blower assembly. Refer to REMOVAL .
   Fig 1: Identifying Battery Cover & Battery Cooling Blower Assemblies

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
9. Install the battery cover. Refer to INSTALLATION .
10. Connect the cable to the negative (-) battery terminal.
11. Enter the following menus: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.

    HINT: 

    Check Cooling Fan Mode3 in the Data List. If the mode is 6, it is not necessary to perform the Active Test.

12. Enter the following menus: All Data / VMF Fan Motor Voltage 1 to 3.
13. Check if the blower assembly (from *1 above) malfunctions in a different location while operating the cooling fans (battery cooling blower assemblies) using the Active Test.
    RESULT
    
    

    Result	Proceed to
    The malfunction is reproduced in the same battery cooling blower.	A
    The malfunction is reproduced in another battery cooling blower.	B

B → See step   9 

A: Go to next step 

1. Disconnect the cable from the negative (-) battery terminal.
2. Check that the service plug grip is not installed.
   NOTE:

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

3. Remove the battery cover. Refer to REMOVAL .
4. Disconnect the O47 connector from the battery cooling blower assembly (No. 2).
   Fig 2: Identifying Battery Cooling Blower Assembly (No. 2) & Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the z18 connector from the battery smart unit.
6. Measure the resistance according to the value(s) in the table below.
   Fig 3: Checking Harness And Connector (Battery Smart Unit - Battery Cooling Blower Assembly [No. 2])

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   z18-1 (VM2) - O47-2 (VM2)	Ignition switch off	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Rear view of wire harness connector (to Battery Smart Unit)
   *2	Front view of wire harness connector (to Battery Cooling Blower Assembly [No. 2])

NG → See step   6 

OK: Go to next step 

1. Disconnect the cable from the negative (-) battery terminal.
2. Check that the service plug grip is not installed.
   NOTE:

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

3. Remove the battery cover. Refer to REMOVAL .
4. Disconnect the O47 connector from the battery cooling blower assembly (No. 2).
   Fig 4: Identifying Battery Cooling Blower Assembly (No. 2) & Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the A65 connector from the hybrid vehicle control ECU. Refer to REMOVAL .
6. Measure the resistance according to the value(s) in the table below.
   Fig 5: Checking Harness And Connector (Hybrid Vehicle Control ECU - Battery Cooling Blower Assembly [No. 2])

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance (Check for Open)

   Tester Connection	Switch Condition	Specified Condition
   A65-18 (Sl2) - O47-3 (Sl2)	Ignition switch off	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Switch Condition	Specified Condition
   O47-3 (Sl2) - O47-4 (GND2)	Ignition switch off	10 kΩ or higher
   O47-3 (Sl2) - Body ground	Ignition switch off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Rear view of wire harness connector (to Hybrid Vehicle Control ECU)
   *2	Front view of wire harness connector (to Battery Cooling Blower Assembly [No. 2])

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the cable from the negative (-) battery terminal.
2. Check that the service plug grip is not installed.
   NOTE:

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

3. Remove the battery cover. Refer to REMOVAL .
4. Connect the cable to the negative (-) battery terminal.
5. Connect the Techstream to the DLC3.
6. Enter the following menus: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.
7. Enter the following menus: All Data / VMF Fan Motor Voltage3.
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 battery cooling blower is operating, compare the value in the Data List (VMF Fan Motor Voltage3) with the voltage value that was actually measured at the battery cooling blower assembly connector.
   Fig 6: Checking VM2 Voltage

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Specified Condition

   Tester Connection	Condition	Specified Condition
   O47-2 (VM2) - O47-4 (GND2)	Battery cooling blower is operating	Difference between the value in the Data List (VMF Fan Motor Voltage3) and the actual measurement value is 1 V or less.

   TEXT IN ILLUSTRATION
   
   

   *1	Component with harness connected (Battery Cooling Blower Assembly [No. 2])

   NOTE:

   If the ignition switch is turned ON 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 .

   HINT: 

   Compare the values in each air volume mode (1 to 6).

NG → See step   10 

OK → See step   11 

1. Disconnect the cable from the negative (-) battery terminal.
2. Check that the service plug grip is not installed.
   NOTE:

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

3. Remove the battery cover. Refer to REMOVAL .
4. Disconnect the Oz3 connector from the No. 2 battery pack wire.
   Fig 7: Identifying OZ3 Connector And No. 2 Battery Pack Wire

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the z18 connector from the battery smart unit.
6. Measure the resistance according to the value(s) in the table below.
   Fig 8: Checking Harness And Connector (No. 2 Battery Pack Wire)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   z18-1 (VM2) - Oz3-4 (VM2)	Ignition switch off	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Rear view of wire harness connector (to Battery Smart Unit)
   *2	Front view of wire harness connector (to No. 2 Battery Pack Wire Connector)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 2 BATTERY PACK WIRE) 

OK → REPAIR OR REPLACE HARNESS OR CONNECTOR