RM36D0EC _51 Engine / Hybrid System _083048 HYBRID / BATTERY CONTROL _0709511 HYBRID CONTROL SYSTEM C

HYBRID / BATTERY CONTROL  HYBRID CONTROL SYSTEM  P0AD915  Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open  


DESCRIPTION

Refer to the description for DTC P0AE411.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P0AE411

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
P0AD915 Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open Open or short to +B in the SMRB circuit:
Primary circuit of SMR (+) is malfunctioning.
(2 trip detection logic)
·

Wire harness or connector

·

HV battery junction block assembly

·

Hybrid vehicle control ECU assembly


Does not come on Master Warning:
Comes on 		SAE Code:
P0ADC

Related Data List
DTC No. Data List
P0AD915
·

VL-Voltage before Boosting

·

VH-Voltage after Boosting

·

Hybrid/EV Battery Voltage

·

SMRP Status

·

SMRB Status

·

SMRG Status

·

SMRP Control Status

·

SMRB Control Status

·

SMRG Control Status

·

Boosting Converter Shutdown Status

·

Generator Inverter Shutdown Status

·

Motor Inverter Shutdown Status



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 CONTROL SYSTEM>UTILITY


1.

Connect the GTS to the DLC3.

2.

Turn the power switch on (IG) and turn the GTS on.

3.

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

4.

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

5.

Turn the power switch on (READY) and wait for 30 seconds or more.

6.

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

7.

Turn the power switch on (IG) and turn the GTS on.

8.

Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.

9.

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 driving pattern again.




CAUTION / NOTICE / HINT

CAUTION:

Refer to the precautions before inspecting high voltage circuit.

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


HINT:

If DTC P0AD915 is output, the power switch cannot be turned on (READY).


PROCEDURE

1.READ VALUE USING GTS (SMRB STATUS)
a.

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

Enter the following menus: Powertrain / Hybrid Control / Data List / SMRB Status.


d.

Read the Data List.

Powertrain > Hybrid Control > Data List
Tester Display
SMRB Status
50003 397 50
Standard:
Tester Display Condition Specified Condition
SMRB Status Power switch on (IG) OFF



e.

Turn the power switch off.


Result:
Proceed to
OK
NG



OK

2.CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR)

NG

5.CHECK HARNESS AND CONNECTOR (SMRB VOLTAGE)
2.CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P056014

Result:
Proceed to
OK
NG



OK

3.CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR)

NG

CONNECT SECURELY

3.CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P0AA000

Result:
Result Proceed to
OK A
NG (The connector is not connected securely.) B
NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C



A

4.CHECK CONNECTOR CONNECTION CONDITION (HV BATTERY JUNCTION BLOCK ASSEMBLY CONNECTOR)

B

CONNECT SECURELY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (SMRB VOLTAGE)
a.

Turn the power switch on (IG).


b.

Measure the voltage according to the value(s) in the table below.

A494962C42
4.74,0.323 5.135,0.573 0.396,0.25 5.656,1.26 6.042,2.24 true 0.323,0.219 0.635,0.375 0.313,0.156 10 false *a 4.823,0.375 5.135,0.531 0.313,0.156 10 false A30 5.938,2.292 6.406,2.51 0.469,0.219 10 false SMRB
*a Component with harness connected
(Hybrid Vehicle Control ECU Assembly) 		- -


Standard Voltage:
Tester Connection Condition Specified Condition
A30-2 (SMRB) - Body ground Power switch on (IG) Below 1 V



c.

Turn the power switch off.


Result:
Proceed to
OK
NG



OK

6.CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR)

NG

7.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - BODY GROUND)
6.CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P056014

Result:
Proceed to
OK
NG



OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


NG

CONNECT SECURELY

7.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - BODY GROUND)
a.

Disconnect the A30 hybrid vehicle control ECU assembly connector.


b.
A556736C42
1.5,0.146 1.938,0.365 0.438,0.219 0.917,1.125 1.417,1.833 true 0.354,0.271 0.667,0.427 0.313,0.156 10 false *a 1.583,0.177 1.958,0.385 0.375,0.208 10 false A30 1.333,1.885 1.833,2.073 0.5,0.188 10 false SMRB
*a Front view of wire harness connector
(to Hybrid Vehicle Control ECU Assembly)


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A30-2 (SMRB) - Body ground Power switch off 25.0 to 59.0 Ω



c.

Reconnect the A30 hybrid vehicle control ECU assembly connector.


Result:
Proceed to
OK
NG



OK

8.CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES)

NG

9.CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR)
8.CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES)
CAUTION:

Be sure to wear insulated gloves.


a.

Check that the service plug grip is not installed.

NOTICE:

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.



b.

Remove the No. 1 HV battery cover panel RH.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HV BATTERY (for LITHIUM-ION BATTERY [Production date from 2021/08])>REMOVAL


c.
A572944N01
1.156,0.448 1.594,0.698 0.438,0.25 1.219,0.49 1.563,0.688 0.344,0.198 10 true M32

Disconnect the M32 HV battery junction block assembly connector.


d.

Disconnect the A30 hybrid vehicle control ECU assembly connector.


e.

Turn the power switch on (IG).


f.
A556751C47
2.604,3.333 3.073,3.604 0.469,0.271 1.406,0.167 1.875,0.438 0.469,0.271 1.302,3.417 1.094,4.146 true 0.865,1.26 0.708,2.073 true 0.292,0.198 0.604,0.354 0.313,0.156 10 false *a 0.375,2.635 0.688,2.792 0.313,0.156 10 false *b 1.51,0.208 1.844,0.385 0.333,0.177 10 false A30 2.667,3.375 3,3.552 0.333,0.177 10 false M32 0.521,2.115 1.135,2.313 0.615,0.198 10 false SMRB 0.885,4.177 1.5,4.375 0.615,0.198 10 false SMRB
*a Front view of wire harness connector
(to Hybrid Vehicle Control ECU Assembly)
*b Front view of wire harness connector
(to HV Battery Junction Block Assembly)


Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
A30-2 (SMRB) or M32-1 (SMRB) - Body ground Power switch on (IG) Below 1 V


NOTICE:

Turning the power switch on (IG) with the hybrid vehicle control ECU assembly connector and the HV battery junction block assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.



g.

Turn the power switch off.


h.

Reconnect the A30 hybrid vehicle control ECU assembly connector.


i.

Reconnect the M32 HV battery junction block assembly connector.


j.

Install the No. 1 HV battery cover panel RH.


Result:
Proceed to
OK
NG



OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P0AA000

Result:
Result Proceed to
OK A
NG (The connector is not connected securely.) B
NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C



A

10.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - HV BATTERY JUNCTION BLOCK ASSEMBLY)

B

CONNECT SECURELY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - HV BATTERY JUNCTION BLOCK ASSEMBLY)
CAUTION:

Be sure to wear insulated gloves.


a.

Check that the service plug grip is not installed.

NOTICE:

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.



b.

Remove the No. 1 HV battery cover panel RH.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HV BATTERY (for LITHIUM-ION BATTERY [Production date from 2021/08])>REMOVAL


c.
A572944N01
1.156,0.448 1.594,0.698 0.438,0.25 1.219,0.49 1.563,0.688 0.344,0.198 10 true M32

Disconnect the M32 HV battery junction block assembly connector.


d.

Disconnect the A30 hybrid vehicle control ECU assembly connector.


e.
A556751C48
2.604,3.333 3.073,3.604 0.469,0.271 1.406,0.167 1.875,0.438 0.469,0.271 1.302,3.417 1.094,4.146 true 0.865,1.26 0.708,2.073 true 0.292,0.198 0.604,0.354 0.313,0.156 10 false *a 0.375,2.635 0.688,2.792 0.313,0.156 10 false *b 1.51,0.208 1.844,0.385 0.333,0.177 10 false A30 2.667,3.375 3,3.552 0.333,0.177 10 false M32 0.521,2.115 1.135,2.313 0.615,0.198 10 false SMRB 0.865,4.198 1.479,4.396 0.615,0.198 10 false SMRB
*a Front view of wire harness connector
(to Hybrid Vehicle Control ECU Assembly)
*b Front view of wire harness connector
(to HV Battery Junction Block Assembly)


Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition
A30-2 (SMRB) - M32-1 (SMRB) Power switch off Below 1 Ω


Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition
A30-2 (SMRB) or M32-1 (SMRB) - Body ground and other terminals Power switch off 10 kΩ or higher



f.

Reconnect the A30 hybrid vehicle control ECU assembly connector.


g.

Reconnect the M32 HV battery junction block assembly connector.


h.

Install the No. 1 HV battery cover panel RH.


Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (HV BATTERY JUNCTION BLOCK ASSEMBLY - BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.CHECK HARNESS AND CONNECTOR (HV BATTERY JUNCTION BLOCK ASSEMBLY - BODY GROUND)
CAUTION:

Be sure to wear insulated gloves.


a.

Check that the service plug grip is not installed.

NOTICE:

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.



b.

Remove the No. 1 HV battery cover panel RH.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HV BATTERY (for LITHIUM-ION BATTERY [Production date from 2021/08])>REMOVAL


c.

Disconnect the M32 HV battery junction block assembly connector.


d.
C408028C15
2.656,1.083 3.01,1.344 0.354,0.26 1.833,1.219 2.292,1.823 true 0.083,0.063 0.396,0.219 0.313,0.156 10 false *a 2.188,1.865 2.583,2.052 0.396,0.188 10 false GND 2.719,1.125 3.031,1.281 0.313,0.156 10 false M32
*a Front view of wire harness connector
(to HV Battery Junction Block Assembly)


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
M32-3 (GND) - Body ground Power switch off Below 1 Ω



e.

Reconnect the M32 HV battery junction block assembly connector.


f.

Install the No. 1 HV battery cover panel RH.


Result:
Proceed to
OK
NG



OK

12.INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRB)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRB)
CAUTION:

Be sure to wear insulated gloves.


a.

Check that the service plug grip is not installed.

NOTICE:

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.



b.

Remove the No. 1 HV battery cover panel RH.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HV BATTERY (for LITHIUM-ION BATTERY [Production date from 2021/08])>REMOVAL


c.

Disconnect the M32 HV battery junction block assembly connector.


d.

Measure the resistance according to the value(s) in the table below.

C519455C01
3.76,1.031 4.115,1.24 0.354,0.208 3.208,1.448 3.417,1.25 true 3.802,1.427 3.635,1.25 true 0.573,0.146 0.885,0.302 0.313,0.156 10 false *a 3.802,1.052 4.26,1.25 0.458,0.198 10 false M32 3.052,1.448 3.385,1.656 0.333,0.208 10 true GND 3.667,1.448 4.177,1.656 0.51,0.208 10 true SMRB
*a Component without harness connected
(HV Battery Junction Block Assembly) 		- -


Standard Resistance:
Tester Connection Condition Specified Condition
M32-1 (SMRB) - M32-3 (GND) -40 to 80°C (-40 to 176°F) 25.0 to 59.0 Ω



e.

Reconnect the M32 HV battery junction block assembly connector.


f.

Install the No. 1 HV battery cover panel RH.


Result:
Proceed to
OK
NG



OK

CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>CHECK FOR INTERMITTENT PROBLEMS


NG

REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HV RELAY ASSEMBLY (for LITHIUM-ION BATTERY [Production date from 2021/08])>REMOVAL