RM38T0EC _51 Engine / Hybrid System _144957 HYBRID / BATTERY CONTROL _0604232 HYBRID CONTROL SYSTEM C

HYBRID / BATTERY CONTROL  HYBRID CONTROL SYSTEM  P0ADD15  Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open  


DESCRIPTION

Refer to the description for DTC P0AD911.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P0AD911

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
P0ADD15 Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open Open or short to +B in SMRG circuit:
Primary circuit of SMR (-) is malfunctioning.
(2 trip detection logic)
·

Wire harness or connector

·

HV battery junction block assembly

·

Hybrid vehicle control ECU


Does not come on Master Warning:
Comes on 		SAE Code:
P0AE0

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 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 (READY) and wait for 30 seconds or more.

6.

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

7.

Turn the ignition switch to ON 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


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




HINT:

If DTC P0ADD15 is output, the ignition switch cannot be turned to ON (READY).


PROCEDURE

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

Read the Data List.

Powertrain > Hybrid Control > Data List
Tester Display
SMRG Status
50003 397 48
Standard:
Tester Display Condition Specified Condition
SMRG Status Ignition switch ON OFF



b.

Turn the ignition switch off.


Result:
Proceed to
OK
NG



OK

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

NG

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

Turn the ignition switch to ON.


b.

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

A502139C75
4.677,0.208 5.125,0.5 0.448,0.292 5.969,2.396 5.781,1.521 true 0.281,0.146 0.594,0.344 0.313,0.198 10 false *a 4.771,0.26 5.229,0.458 0.458,0.198 10 false I278 5.802,2.427 6.417,2.625 0.615,0.198 10 false SMRG
*a Component with harness connected
(Hybrid Vehicle Control ECU) 		- -


Standard Voltage:
Tester Connection Condition Specified Condition
I278-27 (SMRG) - Body ground Ignition switch ON Below 1 V



c.

Turn the ignition switch off.


Result:
Proceed to
OK
NG



OK

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

NG

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

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

Result:
Proceed to
OK
NG



OK

REPLACE HYBRID VEHICLE CONTROL ECU

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


NG

CONNECT SECURELY

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

Disconnect the hybrid vehicle control ECU connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I278-27 (SMRG) - Body ground Ignition switch off 20.6 to 40.8 Ω



c.

Reconnect the hybrid vehicle control ECU 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 ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.



b.
A517683N06
1.146,0.583 1.646,0.833 0.5,0.25 1.219,0.604 1.604,0.813 0.385,0.208 10 true O219

Disconnect the HV battery junction block assembly connector.


c.

Disconnect the hybrid vehicle control ECU connector.


d.

Turn the ignition switch to ON.


e.

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

Standard Voltage:
Tester Connection Condition Specified Condition
I278-27 (SMRG) or O219-6 (SMRG) - Body ground Ignition switch ON Below 1 V


NOTICE:

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



f.

Turn the ignition switch off.


g.

Reconnect the hybrid vehicle control ECU connector.


h.

Reconnect the HV battery junction block assembly connector.


Result:
Proceed to
OK
NG



OK

REPLACE HYBRID VEHICLE CONTROL ECU

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 - HV BATTERY JUNCTION BLOCK ASSEMBLY)

B

CONNECT SECURELY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - 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 ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.



b.
A517683N06
1.146,0.583 1.646,0.833 0.5,0.25 1.219,0.604 1.604,0.813 0.385,0.208 10 true O219

Disconnect the HV battery junction block assembly connector.


c.

Disconnect the hybrid vehicle control ECU connector.


d.

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

Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition
I278-27 (SMRG) - O219-6 (SMRG) Ignition switch off Below 1 Ω


Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition
I278-27 (SMRG) or O219-6 (SMRG) - Body ground and other terminals Ignition switch off 10 kΩ or higher



e.

Reconnect the hybrid vehicle control ECU connector.


f.

Reconnect the HV battery junction block assembly connector.


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)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P0AD915

Result:
Proceed to
OK
NG



OK

12.INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRG)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRG)
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 ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.



b.

Disconnect the HV battery junction block assembly connector.


c.

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

A515114C74
3.958,0.083 4.458,0.333 0.5,0.25 4.51,1.083 4.24,0.677 true 3.938,1.083 4.094,0.813 true 0.573,0.146 0.885,0.302 0.313,0.156 10 false *a 4.042,0.115 4.5,0.313 0.458,0.198 10 false O219 4.406,1.104 4.74,1.271 0.333,0.167 10 true GND 3.698,1.094 4.198,1.323 0.5,0.229 10 false SMRG
*a Component without harness connected
(HV Battery Junction Block Assembly) 		- -


Standard Resistance:
Tester Connection Condition Specified Condition
O219-6 (SMRG) - O219-2 (GND) -40 to 80°C (-40 to 176°F) 20.6 to 40.8 Ω



d.

Reconnect the HV battery junction block assembly connector.


Result:
Proceed to
OK
NG



OK

CHECK FOR INTERMITTENT PROBLEMS

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

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