DTC P0AFC-150: EV Battery Pack Sensor Module: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / EV Battery / Trouble Codes.
5. Read output DTCs.
   RESULT
   
   

   Result	Proceed to
   P31AB-123, P1A61-123 and P1A64-123 is not output.	A
   P31AB-123, P1A61-123 or P1A64-123 is output.	B

6. Turn the power switch off.

B → See step   11 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / EV Battery / Trouble Codes.
5. Read the freeze frame data of DTC P0AFC-150.
   RESULT
   
   

   Result	Proceed to
   "+B" is 11 V or higher	A
   "+B" is below 11 V	B

6. Turn the power switch off.

B → See step   4 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / EV Battery / Data List / +B
5. Read the value displayed on the Techstream.

   Standard

   Techstream Display	Condition	Specified Condition
   +B	IG ON (No electrical load)	11 V or higher

   RESULT
   
   

   Result	Proceed to
   Outside standard range	A
   Within standard range	B

6. Turn the power switch off.

B → See step   7 

A: Go to next step 

1. Check the auxiliary battery. Refer to ON-VEHICLE INSPECTION - Step 1 .
2. Recharge the auxiliary battery. Refer to ON-VEHICLE INSPECTION - Step 3 .

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / EV Battery / Trouble Codes.
5. Clear the DTCs and freeze frame data.
6. Turn the power switch off and wait for at least 30 seconds.

NEXT: Go to next step 

1. Turn the power switch on (IG) and wait for at least 30 seconds.
2. Enter the following menus: Powertrain / EV Battery / Trouble Codes.
3. Read output DTCs.
   RESULT
   
   

   Result	Proceed to
   P0AFC-150 is output	A
   DTC is not output	B

4. Turn the power switch off.

B → END 

A: 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 information because this may cause a malfunction.

   Fig 1: Identifying Electric Vehicle Battery Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the connection of the electric vehicle battery assembly connector.

   OK

   The connector is connected securely and there are no contact problems.

NG → CONNECT SECURELY 

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 information because this may cause a malfunction.

2. Disconnect the electric vehicle battery assembly connector.
   Fig 2: Identifying Electric Vehicle Battery Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect the cable to the negative (-) auxiliary battery terminal.
4. Turn the power switch on (IG).
   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.

5. Measure the voltage according to the value(s) in the table below.
   Fig 3: Measuring Voltage Of Electric Vehicle Battery Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   Gi1-33 (+) - Gi1-19 (-)	Power switch off	8.6 V or higher
   Gi1-32 (+) - Gi1-19 (-)	Power switch on (IG)	8.6 V or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Electric Vehicle Battery Assembly Connector)

6. Turn the power switch off.
7. Disconnect the cable from the negative (-) auxiliary battery terminal.
8. Reconnect the electric vehicle battery assembly connector.

NG → See step   9 

OK → See step   10 

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 information because this may cause a malfunction.

2. Disconnect the electric vehicle battery assembly connector.
   Fig 4: Identifying Electric Vehicle Battery Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.
   Fig 5: Measuring Voltage Of Electric Vehicle Battery Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Gi1-19 - Body ground	Power switch off	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Electric Vehicle Battery Assembly Connector)

4. Reconnect the electric vehicle battery assembly connector.

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK → REPAIR OR REPLACE HARNESS AND CONNECTOR (AM2 OR IGCT CIRCUIT)