RM38T0EC _51 Engine / Hybrid System _144957 HYBRID / BATTERY CONTROL _0604234 HYBRID BATTERY SYSTEM C

HYBRID / BATTERY CONTROL  HYBRID BATTERY SYSTEM  P1A001C  Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range  P301A1C  Hybrid Battery Stack 1 Cell Voltage Detection Voltage Out of Range  


DESCRIPTION

The HV battery is composed of 60 cells (3.7 V each) in series. The battery ECU assembly monitors the voltage of each HV battery cell to detect malfunctions of the HV battery.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
P1A001C Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range An open is detected in the HV battery cell voltage detection circuits of the No. 2 HV supply stack sub-assembly.
(1 trip detection logic)
·

HV battery

·

Battery ECU assembly


Comes on Master Warning:
Comes on 		SAE Code: P1A00
P301A1C Hybrid Battery Stack 1 Cell Voltage Detection Voltage Out of Range An open is detected in the HV battery cell voltage detection circuits of the No. 1 HV supply stack sub-assembly.
(1 trip detection logic)
·

HV battery

·

Battery ECU assembly


Comes on Master Warning:
Comes on 		SAE Code: P301A

MONITOR DESCRIPTION

If the voltage of an HV battery cell is abnormal, the battery ECU assembly will determine that a malfunction has occurred. When the malfunction detection condition is satisfied, the battery ECU assembly will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs P1A00 (INF P1A001C), P301A (INF P301A1C): Battery voltage detection circuits malfunction
Required sensors/components Battery ECU assembly
Frequency of operation Continuous
Duration TMC's intellectual property
MIL operation Immediately
Sequence of operation None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not stored TMC's intellectual property
Other conditions belong to TMC's intellectual property -

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property -

COMPONENT OPERATING RANGE

Battery ECU assembly DTC P1A00 (INF P1A001C) is not detected
DTC P301A (INF P301A1C) is not detected

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 hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID BATTERY SYSTEM>UTILITY

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID BATTERY SYSTEM>DTC CHECK / CLEAR



1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON and turn the GTS on.

3.

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

4.

Turn the ignition switch off and wait for 2 minutes or more.

5.

Turn the ignition switch to ON and turn the GTS on.

6.

With ignition switch ON and wait for 10 seconds or more.[*1]

HINT:

[*1]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.


7.

Enter the following menus: Powertrain / HV Battery / Utility / All Readiness.

8.

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, perform the normal judgment procedure again.




WIRING DIAGRAM

A520718E08
1.594,9.042 4.448,9.25 2.854,0.208 10 false No. 2 HV Supply Stack Sub-assembly 5.26,9.177 6.865,9.427 1.604,0.25 10 false Battery ECU Assembly 5.271,8.979 5.729,9.177 0.458,0.198 10 false z27 5.583,1.448 6.198,1.646 0.615,0.198 10 false VA58 5.583,1.656 6.198,1.854 0.615,0.198 10 false VA57 5.583,1.896 6.198,2.094 0.615,0.198 10 false VA56 5.583,2.125 6.198,2.323 0.615,0.198 10 false VA55 5.583,2.365 6.198,2.563 0.615,0.198 10 false VA54 5.583,2.594 6.198,2.792 0.615,0.198 10 false VA53 5.583,2.844 6.198,3.042 0.615,0.198 10 false VA52 5.583,3.083 6.198,3.281 0.615,0.198 10 false VA51 5.583,3.333 6.198,3.531 0.615,0.198 10 false VA50 5.583,3.583 6.198,3.781 0.615,0.198 10 false VA49 5.583,3.813 6.198,4.01 0.615,0.198 10 false VA48 5.583,4.052 6.198,4.25 0.615,0.198 10 false VA47 5.583,4.302 6.198,4.5 0.615,0.198 10 false VA46 5.583,4.542 6.198,4.74 0.615,0.198 10 false VA45 5.583,4.781 6.198,4.979 0.615,0.198 10 false VA44 5.583,5.021 6.198,5.219 0.615,0.198 10 false VA43 5.583,5.271 6.198,5.469 0.615,0.198 10 false VA42 5.583,5.521 6.198,5.719 0.615,0.198 10 false VA41 5.583,5.771 6.198,5.969 0.615,0.198 10 false VA40 5.583,6.01 6.198,6.208 0.615,0.198 10 false VA39 5.583,6.25 6.198,6.448 0.615,0.198 10 false VA38 5.583,6.479 6.198,6.677 0.615,0.198 10 false GA2 5.583,6.708 6.198,6.906 0.615,0.198 10 false VA37 5.583,6.979 6.198,7.177 0.615,0.198 10 false VA36 5.583,7.25 6.198,7.448 0.615,0.198 10 false VA35 5.229,1.344 5.479,1.51 0.25,0.167 10 false 2 5.167,1.583 5.417,1.75 0.25,0.167 10 false 25 5.219,1.823 5.469,1.99 0.25,0.167 10 false 3 5.167,2.052 5.417,2.219 0.25,0.167 10 false 26 5.229,2.302 5.479,2.469 0.25,0.167 10 false 4 5.167,2.531 5.417,2.698 0.25,0.167 10 false 27 5.24,2.781 5.49,2.948 0.25,0.167 10 false 5 5.219,3.26 5.469,3.427 0.25,0.167 10 false 6 5.167,3.51 5.417,3.677 0.25,0.167 10 false 29 5.229,3.75 5.479,3.917 0.25,0.167 10 false 7 5.167,3.969 5.417,4.135 0.25,0.167 10 false 30 5.24,4.219 5.49,4.385 0.25,0.167 10 false 8 5.167,4.458 5.417,4.625 0.25,0.167 10 false 31 5.167,4.948 5.417,5.115 0.25,0.167 10 false 32 5.167,5.188 5.417,5.354 0.25,0.167 10 false 10 5.156,5.448 5.406,5.615 0.25,0.167 10 false 33 5.167,5.688 5.417,5.854 0.25,0.167 10 false 11 5.167,5.917 5.417,6.083 0.25,0.167 10 false 34 5.167,6.177 5.417,6.344 0.25,0.167 10 false 12 5.167,6.406 5.417,6.573 0.25,0.167 10 false 35 5.167,6.656 5.417,6.823 0.25,0.167 10 false 16 5.167,6.906 5.417,7.073 0.25,0.167 10 false 19 5.167,7.146 5.417,7.313 0.25,0.167 10 false 42 5.167,7.406 5.417,7.573 0.25,0.167 10 false 20 5.167,7.656 5.417,7.823 0.25,0.167 10 false 43 5.167,7.885 5.417,8.052 0.25,0.167 10 false 21 5.156,8.125 5.406,8.292 0.25,0.167 10 false 44 5.167,8.5 5.417,8.667 0.25,0.167 10 false 22 5.583,7.49 6.198,7.688 0.615,0.198 10 false VA34 5.583,7.958 6.198,8.156 0.615,0.198 10 false VA32 5.583,8.208 6.198,8.406 0.615,0.198 10 false VA31 5.594,8.615 6.208,8.813 0.615,0.198 10 false VAD 5.583,7.74 6.198,7.938 0.615,0.198 10 false VA33 5.24,4.719 5.396,4.917 0.156,0.198 10 false 9 5.167,3.01 5.479,3.208 0.313,0.198 10 false 28 5.583,1.198 6.198,1.396 0.615,0.198 10 false VA59 5.583,0.844 6.198,1.042 0.615,0.198 10 false VA60 5.167,1.125 5.479,1.323 0.313,0.198 10 false 24 5.167,0.771 5.479,0.969 0.313,0.198 10 false 23

A520719E08
1.531,9.125 4.031,9.365 2.5,0.24 10 false No. 1 HV Supply Stack Sub-assembly 5.292,9.302 6.896,9.552 1.604,0.25 10 false Battery ECU Assembly 5.302,9.094 5.76,9.292 0.458,0.198 10 false z24 5.552,2.375 6.167,2.573 0.615,0.198 10 false VA24 5.552,2.615 6.167,2.813 0.615,0.198 10 false VA23 5.552,3.104 6.167,3.302 0.615,0.198 10 false VA22 5.552,3.344 6.167,3.542 0.615,0.198 10 false VA21 5.552,3.573 6.167,3.771 0.615,0.198 10 false VA20 5.552,3.813 6.167,4.01 0.615,0.198 10 false VA19 5.552,4.063 6.167,4.26 0.615,0.198 10 false VA18 5.552,4.313 6.167,4.51 0.615,0.198 10 false VA17 5.552,4.552 6.167,4.75 0.615,0.198 10 false VA16 5.552,4.792 6.167,4.99 0.615,0.198 10 false VA15 5.552,5.281 6.167,5.479 0.615,0.198 10 false VA13 5.552,5.521 6.167,5.719 0.615,0.198 10 false VA12 5.552,6.01 6.167,6.208 0.615,0.198 10 false VA10 5.552,6.25 6.167,6.448 0.615,0.198 10 false VA9 5.552,6.5 6.167,6.698 0.615,0.198 10 false VA8 5.552,6.75 6.167,6.948 0.615,0.198 10 false VA7 5.552,7 6.167,7.198 0.615,0.198 10 false VA6 5.552,7.25 6.167,7.448 0.615,0.198 10 false VA5 5.552,7.479 6.167,7.677 0.615,0.198 10 false VA4 5.552,7.708 6.167,7.906 0.615,0.198 10 false VA3 5.552,7.948 6.167,8.146 0.615,0.198 10 false VA2 5.552,8.198 6.167,8.396 0.615,0.198 10 false VA1 5.552,8.677 6.167,8.875 0.615,0.198 10 false GA0 5.24,2.531 5.49,2.698 0.25,0.167 10 false 6 5.177,2.781 5.427,2.948 0.25,0.167 10 false 29 5.229,3.021 5.479,3.188 0.25,0.167 10 false 7 5.188,3.25 5.438,3.417 0.25,0.167 10 false 31 5.229,3.5 5.479,3.667 0.25,0.167 10 false 9 5.188,3.729 5.438,3.896 0.25,0.167 10 false 32 5.188,3.979 5.438,4.146 0.25,0.167 10 false 10 5.177,4.219 5.427,4.406 0.25,0.188 10 false 33 5.177,4.458 5.427,4.625 0.25,0.167 10 false 11 5.177,4.708 5.427,4.875 0.25,0.167 10 false 34 5.167,4.958 5.417,5.125 0.25,0.167 10 false 12 5.167,5.198 5.417,5.365 0.25,0.167 10 false 35 5.167,5.438 5.417,5.604 0.25,0.167 10 false 13 5.167,5.677 5.417,5.844 0.25,0.167 10 false 36 5.167,5.917 5.417,6.083 0.25,0.167 10 false 14 5.167,6.167 5.417,6.333 0.25,0.167 10 false 37 5.167,6.417 5.417,6.583 0.25,0.167 10 false 15 5.167,6.667 5.417,6.833 0.25,0.167 10 false 38 5.167,6.917 5.417,7.083 0.25,0.167 10 false 16 5.167,7.167 5.417,7.333 0.25,0.167 10 false 39 5.167,7.396 5.417,7.563 0.25,0.167 10 false 17 5.167,7.635 5.417,7.802 0.25,0.167 10 false 40 5.167,7.875 5.417,8.042 0.25,0.167 10 false 18 5.167,8.104 5.417,8.271 0.25,0.167 10 false 41 5.167,8.573 5.417,8.74 0.25,0.167 10 false 19 5.552,2.135 6.167,2.333 0.615,0.198 10 false VA25 5.552,1.896 6.167,2.094 0.615,0.198 10 false VA26 5.552,1.427 6.167,1.625 0.615,0.198 10 false VA28 5.552,1.635 6.167,1.833 0.615,0.198 10 false VA27 5.542,2.854 6,3.052 0.458,0.198 10 false GA1 5.188,1.333 5.469,1.552 0.281,0.219 10 false 26 5.25,1.563 5.5,1.729 0.25,0.167 10 false 4 5.177,1.823 5.427,1.99 0.25,0.167 10 false 27 5.229,2.063 5.479,2.229 0.25,0.167 10 false 5 5.177,2.292 5.427,2.458 0.25,0.167 10 false 28 5.552,5.76 6.167,5.958 0.615,0.198 10 false VA11 5.552,5.031 6.167,5.229 0.615,0.198 10 false VA14 5.552,1.208 6.167,1.406 0.615,0.198 10 false VA29 5.24,1.104 5.396,1.302 0.156,0.198 10 false 3 5.552,0.802 6.167,1 0.615,0.198 10 false VA30 5.188,0.719 5.5,0.917 0.313,0.198 10 false 23

CAUTION / NOTICE / HINT

CAUTION:

Refer to the precautions before inspecting high voltage circuit.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID BATTERY SYSTEM>PRECAUTION


NOTICE:
·

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY

·

When disconnecting and reconnecting the auxiliary battery

HINT:

When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>AUTOMATIC LEARNING CHART




PROCEDURE

1.CHECK DTC OUTPUT (HV BATTERY, HYBRID CONTROL)
a.

Check for DTCs.

Powertrain > HV Battery > Trouble Codes
50001 398
Powertrain > Hybrid Control > Trouble Codes
50001 397
Result:
Result Proceed to
"P1A001C or P301A1C" only is output, or DTCs except the ones in the table below are also output. A
DTCs of hybrid battery system in the table below are output. B
DTCs of hybrid control system in the table below are output. C


System Relevant DTC
Hybrid battery system P060A47 Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
P060B49 Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure
P060687 Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message
Hybrid control system P0A1F94 Hybrid/EV Battery Energy Control Module Unexpected Operation


b.

Turn the ignition switch off.



A

2.CHECK DTC

B

GO TO DTC CHART (HYBRID BATTERY SYSTEM)

C

GO TO DTC CHART (HYBRID CONTROL SYSTEM)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


2.CHECK DTC
a.

Check the DTCs that were output when the vehicle was brought to the workshop.


Result:
Result Proceed to
"P1A001C" is also output. A
"P301A1C" is also output. B



A

3.CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY CONNECTOR)

B

6.CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY CONNECTOR)
3.CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY CONNECTOR)
CAUTION:

Be sure to wear insulated gloves and protective goggles.


a.

Check that the service plug grip is not installed.

NOTICE:

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



b.
A517702N06
2.25,1.583 2.75,1.833 0.5,0.25 2.375,1.604 2.677,1.813 0.302,0.208 10 true z27

Check the connector connections and contact pressure of the relevant terminals for the battery ECU assembly.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>ELECTRONIC CIRCUIT INSPECTION PROCEDURE

OK:

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


Result:
Result Proceed to
OK A
Not connected securely The terminals are not damaged or corroded B
Not connected securely The terminals are damaged or corroded C




A

4.CHECK FREEZE FRAME DATA (HYBRID/EV BATTERY CELL VOLTAGE)

B

CONNECT SECURELY

C

REPLACE HV BATTERY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HV BATTERY>REMOVAL


4.CHECK FREEZE FRAME DATA (HYBRID/EV BATTERY CELL VOLTAGE)
a.

Read the value of freeze frame data items "Hybrid/EV Battery Cell 31 Voltage" through "Hybrid/EV Battery Cell 60 Voltage" for DTC P1A001C and make a note if the value of any is 1.6 V or less.

Powertrain > HV Battery > Trouble Codes
50001 398

b.

Turn the ignition switch off.


Result:
Proceed to
NEXT



NEXT

5.CHECK HV BATTERY (HV BATTERY CELL VOLTAGE 31 - 60)
6.CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY CONNECTOR)
CAUTION:

Be sure to wear insulated gloves and protective goggles.


a.

Check that the service plug grip is not installed.

NOTICE:

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



b.
A517701N06
0.667,1.583 1.167,1.833 0.5,0.25 0.781,1.594 1.083,1.802 0.302,0.208 10 true z24

Check the connector connections and contact pressure of the relevant terminals for the battery ECU assembly.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>ELECTRONIC CIRCUIT INSPECTION PROCEDURE

OK:

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


Result:
Result Proceed to
OK A
Not connected securely The terminals are not damaged or corroded B
Not connected securely The terminals are damaged or corroded C




A

7.CHECK FREEZE FRAME DATA (HYBRID/EV BATTERY CELL VOLTAGE)

B

CONNECT SECURELY

C

REPLACE HV BATTERY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HV BATTERY>REMOVAL


7.CHECK FREEZE FRAME DATA (HYBRID/EV BATTERY CELL VOLTAGE)
a.

Read the value of freeze frame data items "Hybrid/EV Battery Cell 1 Voltage" through "Hybrid/EV Battery Cell 30 Voltage" for DTC P301A1C and make a note if the value of any is 1.6 V or less.

Powertrain > HV Battery > Trouble Codes
50001 398

b.

Turn the ignition switch off.


Result:
Proceed to
NEXT



NEXT

8.CHECK HV BATTERY (HV BATTERY CELL VOLTAGE 1 - 30)