P0AEB

P313 HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: P0A9D-123, P0A9E-123, P0AC7-123, P0AC8-123, P0ACC-123, P0ACD-123, P0AEA-123, P0AEB-123, P0BC4-123, P0BC5-123, P0C35-123, P0C36-123: Hybrid Battery Temperature Sensor "A" Circuit Low
P0C36-123 - Hybrid Battery Temperature Sensor "F" Circuit High

DESCRIPTION

- Refer to the description for DTC P0A9C-123 P0A9C.





HINT
After confirming that a DTC is output, use the Techstream to check "Temp of Batt TB1 to 6" in the hybrid vehicle control system ECU Data List Data List / Active Test.





MONITOR DESCRIPTION

If the temperature indicated by the battery temperature sensor is lower than the standard level (open), or is higher than the standard level (short), the battery smart unit interprets this as a sensor malfunction. If the battery smart unit detects that HV battery temperature is out of the normal range or its value is abnormal, the hybrid vehicle control ECU will illuminate the MIL and set a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.

2. Turn the ignition switch to ON and turn the Techstream on.

3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4. Turn the ignition switch off.

5. Turn the ignition switch to ON (READY) and turn the Techstream on.

6. Perform the universal trip.

7. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

8. Check that permanent DTCs are cleared.

HINT
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

Refer to the Wiring Diagram for DTC P0A85-123 P0A85.

INSPECTION PROCEDURE

CAUTION:
- Before inspecting the high-voltage system, take safety precautions to prevent electrical shocks, such as wearing insulated gloves and removing the service plug grip. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.
HINT
At least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

PROCEDURE

1. CHECK DTC OUTPUT (DTC P0AFC-123 IS OUTPUT) P0A7F

B -- GO TO DTC P0AFC-123 P0AFC-123
A -- Continue to next step.

2. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Enter the following menus: Powertrain / Hybrid Control / Data List / Temp of Batt TB1 to 6

HINT
Compare the temperature of the 6 battery temperature sensors to determine the sensor with the malfunction (Temp of Batt TB1 to 6).

NEXT -- Continue to next step.

3. CHECK CONNECTOR CONNECTION CONDITION (BATTERY TEMPERATURE SENSOR)

CAUTION:
Be sure to wear insulated gloves and protective goggles.

(a) Disconnect the cable from the negative (-) battery terminal.

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

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

(c) Remove the battery cover Removal.

(d) Check the connections of the battery temperature sensor connector.





OK:

The connectors are connected securely and there are no contact problems.

NG -- CONNECT SECURELY
OK -- Continue to next step.

4. CHECK CONNECTOR CONNECTION CONDITION (BATTERY SMART UNIT)

CAUTION:
Be sure to wear insulated gloves and protective goggles.

(a) Disconnect the cable from the negative (-) battery terminal.

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

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

(c) Remove the battery cover Removal.

(d) Check the connections of the z18 connector of the battery smart unit.





OK:

The connectors are connected securely and there are no contact problems.

Text in Illustration





NG -- CONNECT SECURELY
OK -- Continue to next step.

5. CHECK HV BATTERY ASSEMBLY (BATTERY TEMPERATURE SENSOR) P0A9C

NG -- CHECK HARNESS AND CONNECTOR (NO. 2 BATTERY PACK WIRE)
OK -- Continue to next step.

6. CHECK BATTERY SMART UNIT (VIB VOLTAGE) P0ABF

NG -- CHECK HYBRID VEHICLE RELAY ASSEMBLY

OK -- REPLACE BATTERY SMART UNIT Removal

7. CHECK HYBRID VEHICLE RELAY ASSEMBLY P0A85

NG -- CHECK HARNESS AND CONNECTOR (NO. 2 BATTERY PACK WIRE)

OK -- REPLACE HYBRID VEHICLE RELAY ASSEMBLY Removal

8. CHECK HARNESS AND CONNECTOR (NO. 2 BATTERY PACK WIRE) P0A85

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

OK -- REPLACE BATTERY SMART UNIT Removal

9. CHECK HARNESS AND CONNECTOR (NO. 2 BATTERY PACK WIRE) P0A9C

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

OK -- REPLACE HV BATTERY ASSEMBLY Removal