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

HYBRID / BATTERY CONTROL  HYBRID CONTROL SYSTEM  P300449  High Voltage Power Resource Circuit Short during Pre-Charge  


DTC SUMMARY

MALFUNCTION DESCRIPTION


The hybrid vehicle control ECU assembly monitors the high-voltage wiring between the HV battery and inverter with converter assembly and detects an open circuit malfunction.

The cause of this malfunction may be one of the following:

Inverter voltage sensor (VH) internal circuit malfunction
·

Voltage sensor (VH) malfunction

·

Motor generator control ECU (MG ECU) malfunction

·

Communication (wire harness) malfunction


High voltage system malfunction
·

HV battery malfunction

·

HV battery junction block assembly malfunction

·

Inverter with converter assembly malfunction

·

High-voltage wire harness malfunction

·

High-voltage connector or connection malfunction


Low-voltage circuit (12 V) malfunction
·

Hybrid vehicle control ECU assembly malfunction

·

HV battery junction block assembly malfunction

·

Low voltage wire harness malfunction

·

Low voltage connector malfunction



INSPECTION DESCRIPTION


A407910E07
0.333,0.177 2.938,0.375 2.604,0.198 10 false Service Plug Grip 0.063,0.51 0.979,0.708 0.917,0.198 10 false *d, *e 2.396,0.521 2.708,0.719 0.313,0.198 10 false *b 0.469,2.083 2,2.281 1.531,0.198 10 false HV Battery 2.427,1.115 3.042,1.313 0.615,0.198 10 false SMRB 2.427,2 3.042,2.198 0.615,0.198 10 false SMRG 2.438,2.552 3.052,2.75 0.615,0.198 10 false SMRP 1.542,2.552 2.365,3.01 0.823,0.458 10 false System Main Resistor 3.833,0.781 4.146,0.979 0.313,0.198 10 false *c 4.635,2.021 5.667,2.448 1.031,0.427 10 false Boost Converter 5.917,2 6.417,2.385 0.5,0.385 10 false Inverter 1.354,3.417 3.75,3.948 2.396,0.531 10 false HV Battery Junction Block Assembly 4.792,3.698 5.104,3.896 0.313,0.198 10 false *a 5.438,3.604 6.281,4.146 0.844,0.542 10 false System main relay signal 4.469,2.875 6.563,3.313 2.094,0.438 10 false Inverter with Converter Assembly 5.281,4.323 6.99,4.885 1.708,0.563 10 false Hybrid Vehicle Control ECU Assembly 1.115,4.729 4.021,4.927 2.906,0.198 10 false : High Voltage Line 1.115,5.063 3.865,5.26 2.75,0.198 10 false : Inspection Areas

System Diagram Range Inspection Content Reason Inspection Step
*a Check connection condition and wire harness continuity between hybrid vehicle control ECU assembly and HV battery junction block assembly Check whether connectors are connected properly and check for an open circuit in the SMRP and SMRB primary lines 3 to 7
*b Check system main relay Check whether SMRB and SMRP stuck OFF 8, 9
*c Check connection condition and high-voltage cable continuity between HV battery junction block assembly and inverter with converter assembly Check for open circuit and defective connection (arc marks) due to looseness 10 to 12
*d Check high-voltage cable and connection condition between HV battery and HV battery junction block assembly Check for open circuit and defective connection (arc marks) due to looseness 13 to 17
*e Check HV battery Check whether HV battery voltage has drastically dropped below normal range 18, 19


DESCRIPTION

Refer to the description for DTC P0AE411.

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

The hybrid vehicle control ECU assembly monitors the high-voltage wiring between the HV battery and the inverter with converter assembly and detects the following malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
P300449 High Voltage Power Resource Circuit Short during Pre-Charge Although a system main relay operation signal was sent when the power switch was operated, the system voltage is not sufficiently increased after boosting and the HV battery current does not flow.
High-voltage circuit malfunctions between the HV battery and inverter with converter assembly.
The EV electric battery fuse is blown, the service plug grip is removed, the system main resistor is blown, SMRP or SMRB remains open, or the high-voltage cable has an open circuit.
(2 trip detection logic)
·

HV battery junction block assembly

·

HV floor under wire

·

Inverter with converter assembly

·

No. 1 HV supply stack sub-assembly

·

No. 2 HV supply stack sub-assembly

·

Hybrid battery terminal block

·

Electric vehicle battery plug assembly

·

Wire harness or connector


Does not come on Master Warning:
Comes on
SAE Code:
P3004

Related Data List
DTC No. Data List
P300449
·

Hybrid/EV Battery Voltage

·

Hybrid/EV Battery Current

·

VL-Voltage before Boosting

·

VH-Voltage after Boosting



The following items can be helpful when performing repairs:

Data List
·

Ready Signal

·

Inter Lock Switch

·

SMRP Status

·

SMRB Status

·

SMRG 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 (IG) and turn the GTS on.

6.

Turn the power switch on (READY) and wait for 3 minutes or more.

HINT:

According to the display on the GTS, read the Data List and monitor the values of "Hybrid/EV Battery Voltage" and "VL-Voltage before Boosting" for 3 minutes. If the difference between "Hybrid/EV Battery Voltage" and "VL-Voltage before Boosting" is always less than 50 V, the vehicle has returned to normal.


7.

Enter the following menus: Powertrain / Hybrid Control / 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 driving pattern again.




CAUTION / NOTICE / HINT

PROCEDURE

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

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

Enter the following menus: Powertrain / Hybrid Control, Motor Generator, HV Battery / Trouble Codes.


d.

Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes
50001 397
Powertrain > Motor Generator > Trouble Codes
50001 395
Powertrain > HV Battery > Trouble Codes
50001 398
Result:
Result Proceed to
P300449 only is output, or DTCs except the ones in the table below are also output. A
DTCs of hybrid control system in the tables below are output. B
DTCs of motor generator control system in the tables below are output. C
DTCs of hybrid battery system in the tables below are output. D


Malfunction Content System Relevant DTC
Microcomputer malfunction Hybrid control system P0A1B49 Drive Motor "A" Control Module Internal Electronic Failure
P060647 Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure
P060687 Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message
P060A47 Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure
P060A87 Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message
P1C9E9F Hybrid/EV System Reset Stuck Off
P060B49 Hybrid/EV Powertrain Control Module A/D Processing Internal Electronic Failure
Motor generator control system P0A1B1F Generator Control Module Circuit Intermittent
P0A1A47 Generator Control Module Watchdog / Safety μC Failure
P0A1A49 Generator Control Module Internal Electronic Failure
P1C2A1C Generator A/D Converter Circuit Circuit Voltage Out of Range
P1C2A49 Generator A/D Converter Circuit Internal Electronic Failure
P313383 Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect
P313386 Communication Error from Generator to Drive Motor "A" Signal Invalid
P313387 Communication Error from Generator to Drive Motor "A" Missing Message
Hybrid battery system 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
P060A47 Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
P060A87 Hybrid/EV Battery Energy Control Module Processor from Monitoring Processor Missing Message
P060B16 Hybrid/EV Battery Energy Control Module A/D Processing Circuit Voltage Below Threshold
P0E2D00 Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance
Power source circuit malfunction Motor generator control system P06D61C Generator Control Module Offset Power Circuit Voltage Out of Range
Communication system malfunction Hybrid control system P312387 Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message
U011187 Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message
Sensor and actuator circuit malfunction Hybrid control system P0AD915 Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open
P0AD911 Hybrid/EV Battery Positive Contactor Circuit Short to Ground
P0AE415 Hybrid/EV Battery Precharge Contactor Circuit Short to Auxiliary Battery or Open
P0AE411 Hybrid/EV Battery Precharge Contactor Circuit Short to Ground
P0ADD15 Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open
P0ADD11 Hybrid/EV Battery Negative Contactor Circuit Short to Ground
P0B231C Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range
P0ABF00 Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance
Hybrid battery system P0ABF11 Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground
P0B0E11 Hybrid/EV Battery Current Sensor "B" Circuit Short to Ground
P0B0E15 Hybrid/EV Battery Current Sensor "B" Circuit Short to Auxiliary Battery or Open
P0ABF15 Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open
P301A1C Hybrid Battery Stack 1 Cell Voltage Detection Voltage Out of Range
P1A001C Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range
P1AFD1C Flying Capacitor/Internal Control Module Hybrid/EV Battery Monitor Voltage Out of Range
P0ABF28 Hybrid/EV Battery Current Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure
P0ABF2A Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range
P1CBB12 Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery
P1CBB14 Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open
P0B1362 Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure
System malfunction Hybrid control system P0C7600 Hybrid/EV Battery System Discharge Time Too Long
P0D2D1C Drive Motor "A" Inverter Voltage Sensor Voltage Out of Range
P1C8149 High Voltage Power Resource Circuit Consumption Circuit Short
P1C8249 High Voltage Power Resource Circuit Over Loading
P1C8349 High Voltage Power Resource Circuit Voltage Sensor after Boosting Malfunction
P0A1F94 Hybrid/EV Battery Energy Control Module Unexpected Operation
Motor generator control system P0D2D16 Drive Motor "A" Inverter Voltage Sensor(VH) Circuit Voltage Below Threshold
P0D2D17 Drive Motor "A" Inverter Voltage Sensor(VH) Circuit Voltage Above Threshold
P1CB69E Drive Motor "A" Inverter Voltage Sensor(VH) Stuck On
P0CA300 DC/DC Converter Step Up Voltage Performance

HINT:
·

P300449 may be output as a result of the malfunction indicated by the DTCs above.

(a)

The chart above is listed in inspection order of priority.

(b)

Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)





e.

Turn the power switch off.



A

2.CHECK FREEZE FRAME DATA (HYBRID CONTROL)

B

C

D

2.CHECK FREEZE FRAME DATA (HYBRID CONTROL)
a.

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

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


d.

Read the freeze frame data of DTC P300449.

Powertrain > Hybrid Control > Trouble Codes
50001 397
Standard:
Freeze Frame Data Itm Specified Condition
VH-Voltage after Boosting Below 50 V [*1]
Hybrid/EV Battery Voltage - VL-Voltage before Boosting -40 to 40 V [*2]


Result:
Result Cause Proceed to
Specified condition [*1] and [*2] are met Inverter A
Except above Other B



e.

Turn the power switch off.



A

B

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

OK

4.CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR)

NG

CONNECT SECURELY

4.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

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

B

CONNECT SECURELY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

OK

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

NG

CONNECT SECURELY

6.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.




c.

Disconnect the M32 HV battery junction block assembly connector.


d.

Disconnect the A30 hybrid vehicle control ECU assembly connector.


e.
A556751C55
2.604,3.333 3.073,3.604 0.469,0.271 1.406,0.167 1.875,0.438 0.469,0.271 1.292,3.406 0.865,4.073 true 0.865,1.25 1.094,2.083 true 1.104,1.406 1.521,2.031 true 1.542,3.427 1.677,4.063 true 0.281,0.281 0.594,0.438 0.313,0.156 10 false *a 0.333,2.563 0.646,2.719 0.313,0.156 10 false *b 1.531,0.219 1.865,0.396 0.333,0.177 10 false A30 2.677,3.375 3.01,3.552 0.333,0.177 10 false M32 0.906,2.125 1.521,2.323 0.615,0.198 10 false SMRB 0.635,4.083 1.25,4.281 0.615,0.198 10 false SMRB 1.385,2.052 2,2.25 0.615,0.198 10 false SMRP 1.458,4.094 2.073,4.292 0.615,0.198 10 false SMRP
*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:
Tester Connection Condition Specified Condition
A30-2 (SMRB) - M32-1 (SMRB) Power switch off Below 1 Ω
A30-16 (SMRP) - M32-2 (SMRP) Power switch off Below 1 Ω



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

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.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.




c.

Disconnect the M32 HV battery junction block assembly connector.


d.
C408028C01
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 2.323,1.844 2.635,2 0.313,0.156 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

8.INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRB)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.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.




c.

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

C384277C42
3.76,1.031 4.115,1.24 0.354,0.208 5.625,0.146 6.031,0.375 0.406,0.229 3.302,0.146 3.656,0.365 0.354,0.219 3.115,1.406 3.385,1.24 true 3.771,1.417 3.604,1.24 true 3.771,0.427 3.396,0.677 true 6.292,0.698 5.802,0.698 true 0.573,0.146 0.885,0.302 0.313,0.156 10 false *a 3.813,1.063 4.271,1.26 0.458,0.198 10 false M32 2.958,1.438 3.292,1.646 0.333,0.208 10 true GND 3.667,1.438 4.146,1.646 0.479,0.208 10 true SMRB 5.688,0.167 6,0.365 0.313,0.198 10 true z32 6.323,0.604 6.479,0.802 0.156,0.198 10 false + 3.385,0.167 3.604,0.344 0.219,0.177 10 true Y3 3.813,0.344 4.198,0.563 0.385,0.219 10 false CBI
*a Component without harness connected
(HV Battery Junction Block Assembly)
- -


Standard Resistance:
Tester Connection Condition Specified Condition
z32-1 (+) - Y3-1 (CBI) Auxiliary battery voltage applied between terminals M32-1 (SMRB) and M32-3 (GND) Below 1 Ω



d.

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

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.

Install the HV battery junction block assembly.


Result:
Proceed to
OK
NG



OK

9.INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRP)

NG

9.INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRP)
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.




c.

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

C384277C18
3.76,1.031 4.115,1.24 0.354,0.208 2.219,0.104 2.583,0.344 0.365,0.24 1.167,0.115 1.531,0.323 0.365,0.208 3.125,1.406 3.396,1.24 true 3.781,1.417 3.531,1.25 true 2.063,1.063 2.396,0.677 true 0.833,0.854 1.344,0.656 true 0.573,0.146 0.885,0.302 0.313,0.156 10 false *a 3.823,1.052 4.281,1.25 0.458,0.198 10 false M32 2.958,1.448 3.292,1.656 0.333,0.208 10 true GND 3.667,1.458 4.115,1.656 0.448,0.198 10 true SMRP 2.281,0.146 2.552,0.302 0.271,0.156 10 true Y4 1.229,0.135 1.5,0.302 0.271,0.167 10 true z21 1.813,1 2.188,1.208 0.375,0.208 10 false CEI 0.719,0.781 0.875,0.979 0.156,0.198 10 false -
*a Component without harness connected
(HV Battery Junction Block Assembly)
- -


Standard Resistance:
Tester Connection Condition Specified Condition
z21-1 (-) - Y4-1 (CEI) Auxiliary battery voltage applied between terminals M32-2 (SMRP) and M32-3 (GND) 24.3 to 29.7 Ω



d.

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

Standard Resistance:
Tester Connection Condition Specified Condition
M32-2 (SMRP) - M32-3 (GND) -40 to 80°C (-40 to 176°F) 140 to 290 Ω



e.

Install the HV battery junction block assembly.


Result:
Proceed to
OK
NG



OK

10.CHECK INVERTER WITH CONVERTER ASSEMBLY (FLOOR UNDER WIRE)

NG

10.CHECK INVERTER WITH CONVERTER ASSEMBLY (FLOOR UNDER WIRE)
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.
C412485

Check that the bolts for the floor under wire are tightened to the specified torque, the floor under wire is connected securely, and there are no contact problems.

Specified Condition:

T = 8.0 N*m (82 kgf*cm, 71 in.*lbf)



c.

Disconnect the floor under wire from the inverter with converter assembly.


d.

Check for arc marks on the terminals for the floor under wire and inverter with converter assembly.

Result:
Result Proceed to
The terminals are connected securely and there are no contact problems. There are no arc marks. A
The terminals are not connected securely and there is a contact problem. There are arc marks. B
The terminals are not connected securely and there is a contact problem. There are no arc marks. C
The terminals are connected securely and there are no contact problems. There are arc marks. B



e.

Reconnect the floor under wire.



A

11.CHECK HV BATTERY JUNCTION BLOCK ASSEMBLY (FLOOR UNDER WIRE)

B

REPLACE MALFUNCTIONING PARTS

C

CONNECT SECURELY

11.CHECK HV BATTERY JUNCTION BLOCK ASSEMBLY (FLOOR UNDER WIRE)
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.




c.
C529598

Check that the floor under wire is connected securely, and there are no contact problems.


d.

Disconnect the floor under wire connectors from the HV battery junction block assembly.


e.

Check for arc marks on the terminals of the HV floor wire and the HV battery junction block assembly.

Result:
Result Proceed to
The terminals are connected securely and there are no contact problems. There are no arc marks. A
The terminals are not connected securely and there is a contact problem. There are arc marks. B
The terminals are not connected securely and there is a contact problem. There are no arc marks. C
The terminals are connected securely and there are no contact problems. There are arc marks. B



f.

Reconnect the floor under wire.


g.

Install the No. 1 HV battery cover panel RH.



A

12.CHECK FLOOR UNDER WIRE

B

REPLACE MALFUNCTIONING PARTS

C

CONNECT SECURELY

12.CHECK FLOOR UNDER WIRE
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.




c.
C529598

Disconnect the floor under wire connectors from the HV battery junction block assembly.


d.
C412478

Disconnect the floor under wire connector from the inverter with converter assembly.


e.

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

A556794C03
0.583,0.958 0.979,1.198 0.396,0.24 3.729,0.531 4.125,0.771 0.396,0.24 5.625,0.5 6.021,0.74 0.396,0.24 0.583,2.552 0.979,2.792 0.396,0.24 1.26,1.51 1.948,0.927 true 3.948,1.146 4.333,0.708 true 5.771,1.073 5.396,0.708 true 2.917,1.344 2.24,0.938 true 1.427,3.333 1.927,2.635 true 2.938,3.083 2.219,2.615 true 1,0.094 1.313,0.25 0.313,0.156 10 false *a 3.594,0.208 3.906,0.365 0.313,0.156 10 false *b 0.698,1.01 1.01,1.208 0.313,0.198 10 false Y2 3.844,0.573 4.156,0.771 0.313,0.198 10 false Y3 5.74,0.542 6.052,0.74 0.313,0.198 10 false Y4 0.948,1.542 1.406,1.74 0.458,0.198 10 false CBI 3.677,1.083 4.135,1.281 0.458,0.198 10 false CBI 5.823,1.021 6.281,1.219 0.458,0.198 10 false CEI 2.958,1.313 3.417,1.51 0.458,0.198 10 false CEI 0.698,2.594 1.01,2.792 0.313,0.198 10 false Y1 1.177,1.906 1.49,2.063 0.313,0.156 10 false *a 1.042,1.021 1.354,1.177 0.313,0.156 10 false *A 1.042,2.604 1.354,2.76 0.313,0.156 10 false *B 2.99,3.052 3.448,3.25 0.458,0.198 10 false CEI 1.125,3.271 1.583,3.469 0.458,0.198 10 false CBI
*A for 2WD *B for AWD
*a Floor under wire
(Inverter with Converter Assembly Side)
*b Floor under wire
(HV Battery Junction Block Assembly Side)


Standard Resistance:
for 2WD:
Tester Connection Condition Specified Condition
Y2-1 (CBI) - Y3-1 (CBI) Power switch off Below 1 Ω
Y2-2 (CEI) - Y4-1 (CEI) Power switch off Below 1 Ω

for AWD:
Tester Connection Condition Specified Condition
Y1-1 (CBI) - Y3-1 (CBI) Power switch off Below 1 Ω
Y1-2 (CEI) - Y4-1 (CEI) Power switch off Below 1 Ω


NOTICE:

Be sure not to damage or deform the terminal being inspected.



f.

Reconnect the floor under wire connector to the inverter with converter assembly.


g.

Reconnect the floor under wire connectors to the HV battery junction block assembly.


h.

Install the No. 1 HV battery cover panel RH.


Result:
Proceed to
OK
NG



OK

13.CHECK HV BATTERY JUNCTION BLOCK ASSEMBLY (HV BATTERY HIGH VOLTAGE CONNECTOR CONNECTION CONDITION)

NG

13.CHECK HV BATTERY JUNCTION BLOCK ASSEMBLY (HV BATTERY HIGH VOLTAGE CONNECTOR CONNECTION CONDITION)
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.




c.
C529588

Check the 2 HV battery high voltage connectors are connected securely, and there are no contact problems.


d.

Disconnect the 2 HV battery high voltage connectors from the HV battery junction block assembly.

NOTICE:

Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.



e.

Check for arc marks on the terminals of the HV battery high voltage connectors and HV battery junction block assembly.

Result:
Result Proceed to
The terminals are connected securely and there are no contact problems. There are no arc marks. A
The terminals are not connected securely and there is a contact problem. There are arc marks. B
The terminals are not connected securely and there is a contact problem. There are no arc marks. C
The terminals are connected securely and there are no contact problems. There are arc marks. B



f.

Reconnect the 2 HV battery high voltage connectors.


g.

Install the No. 1 HV battery cover panel RH.



A

14.CHECK HYBRID BATTERY TERMINAL BLOCK (HV BATTERY HIGH VOLTAGE CONNECTOR CONNECTION CONDITION)

B

REPLACE MALFUNCTIONING PARTS

C

CONNECT SECURELY

14.CHECK HYBRID BATTERY TERMINAL BLOCK (HV BATTERY HIGH VOLTAGE CONNECTOR CONNECTION CONDITION)
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.




c.
C433528

Check the HV battery high voltage connector and electric vehicle battery plug connector securely, and there are no contact problems.


d.

Disconnect the HV battery high voltage connector and electric vehicle battery plug connector from the hybrid battery terminal block.

NOTICE:

Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.



e.

Check for arc marks on the terminals of the HV battery high voltage connectors and hybrid battery terminal block.

Result:
Result Proceed to
The terminals are connected securely and there are no contact problems. There are no arc marks. A
The terminals are not connected securely and there is a contact problem. There are arc marks. B
The terminals are not connected securely and there is a contact problem. There are no arc marks. C
The terminals are connected securely and there are no contact problems. There are arc marks. B



f.

Reconnect the HV battery high voltage connector and electric vehicle battery plug connector.


g.

Install the No. 1 HV battery cover panel RH.



A

15.CHECK HV SUPPLY STACK SUB-ASSEMBLY (HV BATTERY HIGH VOLTAGE CONNECTOR CONNECTION CONDITION)

B

REPLACE MALFUNCTIONING PARTS

C

CONNECT SECURELY

15.CHECK HV SUPPLY STACK SUB-ASSEMBLY (HV BATTERY HIGH VOLTAGE CONNECTOR CONNECTION CONDITION)
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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.




c.
C529590

Check that the HV battery high voltage connector is connected securely, and there are no contact problems.


d.

Disconnect the HV battery high voltage connector.

NOTICE:

Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.



e.

Check for arc marks on the terminals of the HV battery high voltage connector.

Result:
Result Proceed to
The terminals are connected securely and there are no contact problems. There are no arc marks. A
The terminals are not connected securely and there is a contact problem. There are arc marks. B
The terminals are not connected securely and there is a contact problem. There are no arc marks. C
The terminals are connected securely and there are no contact problems. There are arc marks. B



f.

Connect the HV battery high voltage connector.


g.

Install the upper HV battery cover sub-assembly.



A

16.CHECK ELECTRIC VEHICLE BATTERY PLUG ASSEMBLY

B

REPLACE MALFUNCTIONING PARTS

C

CONNECT SECURELY

16.CHECK ELECTRIC VEHICLE BATTERY PLUG 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.




c.
C529599

Disconnect the 2 electric vehicle battery plug assembly connectors.


d.

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

C433552C01
0.375,0.99 0.719,1.229 0.344,0.24 0.865,2.906 1.208,3.146 0.344,0.24 4.781,2.167 5.083,1.865 true 5.583,2.177 5.271,1.865 true 0.448,1.031 0.76,1.229 0.313,0.198 10 false z32 0.938,2.948 1.25,3.146 0.313,0.198 10 false z31 0.563,0.344 0.875,0.5 0.313,0.156 10 false *a 0.781,2.24 1.094,2.396 0.313,0.156 10 false *b 3.813,0.99 4.125,1.146 0.313,0.156 10 true *c 4.677,2.208 4.833,2.406 0.156,0.198 10 true 1 5.552,2.208 5.708,2.406 0.156,0.198 10 true 2
*a Electric Vehicle Battery Plug Assembly Connector
(HV Battery Junction Block Assembly Side)
*b Electric Vehicle Battery Plug Assembly Connector
(Hybrid Battery Terminal Block Side)
*c Service Plug Grip Removed
(Service Plug Grip Connecting Terminals)
- -


Standard Resistance:
Tester Connection Condition Specified Condition
z32-1 (+) - Service plug grip connecting terminal 1 Power switch off Below 1 Ω
z31-1 - Service plug grip connecting terminal 2 Power switch off Below 1 Ω



e.

Reconnect the 2 electric vehicle battery plug assembly connectors.


f.

Install the No. 1 HV battery cover panel RH.


Result:
Proceed to
OK
NG



OK

17.CHECK HYBRID BATTERY TERMINAL BLOCK

NG

17.CHECK HYBRID BATTERY TERMINAL BLOCK
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.




c.
C433528

Disconnect the HV battery high voltage connector and electric vehicle battery plug assembly connector from the hybrid battery terminal block.

NOTICE:

Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.



d.
C529597C01
1.458,0.292 1.865,0.552 0.406,0.26 2.063,0.635 2.469,0.896 0.406,0.26 0.198,0.177 0.51,0.333 0.313,0.156 10 true *a 1.51,0.333 1.823,0.531 0.313,0.198 10 true z30 2.135,0.677 2.448,0.875 0.313,0.198 10 true z31
*a Component without harness connected
(Hybrid Battery Terminal Block)


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

Standard Resistance:
Tester Connection Condition Specified Condition
z31-1 - z30-1 Power switch off Below 1 Ω



e.

Reconnect the HV battery high voltage connector and electric vehicle battery plug assembly connector to the hybrid battery terminal block.


f.

Install the No. 1 HV battery cover panel RH.


Result:
Proceed to
OK
NG



OK

18.CHECK NO. 2 HV SUPPLY STACK SUB-ASSEMBLY

NG

18.CHECK NO. 2 HV SUPPLY STACK SUB-ASSEMBLY
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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.




c.
C529596

Disconnect the HV battery high voltage connector from the hybrid battery terminal block.

NOTICE:

Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.



d.
C529590

Disconnect the HV battery high voltage connector.

NOTICE:

Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.



e.
A407230C04
0.625,1.188 0.979,1.438 0.354,0.25 0.51,3.156 0.865,3.406 0.354,0.25 0.625,0.385 0.938,0.542 0.313,0.156 10 false *a 0.667,2.365 0.979,2.521 0.313,0.156 10 false *b 0.708,1.229 1.021,1.427 0.313,0.198 10 false z30 0.646,3.208 0.802,3.406 0.156,0.198 10 false A
*a No. 2 HV Supply Stack Sub-assembly Connector
(Hybrid Battery Terminal Block Side)
*b No. 2 HV Supply Stack Sub-assembly Connector
(No. 1 HV Supply Stack Sub-assembly Side)


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

Standard Voltage:
Tester Connection Condition Specified Condition
z30-1 - A-1 Power switch off 50 V or higher


CAUTION:

Do not allow the probes of the electrical tester to contact each other during this inspection.



f.

Reconnect the 2 HV battery high voltage connectors.


g.

Install the upper HV battery cover sub-assembly.


Result:
Proceed to
OK
NG



OK

19.CHECK NO. 1 HV SUPPLY STACK SUB-ASSEMBLY

NG

19.CHECK NO. 1 HV SUPPLY STACK SUB-ASSEMBLY
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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.





d.
C529589

Disconnect the HV battery high voltage connector from the HV battery junction block assembly.

NOTICE:

Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.



e.
C529590

Disconnect the HV battery high voltage connector.

NOTICE:

Insulate each disconnected high-voltage connector with insulating tape. Wrap the connector from the wire harness side to the end of the connector.



f.
A572945C01
0.104,1.094 0.427,1.354 0.323,0.26 0.125,3.323 0.448,3.583 0.323,0.26 0.333,0.406 0.646,0.563 0.313,0.156 10 false *a 0.396,2.583 0.708,2.74 0.313,0.156 10 false *b 0.167,1.146 0.479,1.344 0.313,0.198 10 false z21 0.26,3.375 0.417,3.573 0.156,0.198 10 false A
*a No. 1 HV Supply Stack Sub-assembly Connector
(HV Battery Junction Block Assembly Side)
*b No. 1 HV Supply Stack Sub-assembly Connector
(No. 2 HV Supply Stack Sub-assembly Side)


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

Standard Voltage:
Tester Connection Condition Specified Condition
z21-1 (-) - A-1 Power switch off 50 V or higher


CAUTION:

Do not allow the probes of the electrical tester to contact each other during this inspection.



g.

Reconnect the 2 HV battery high voltage connectors.


h.

Install the electric vehicle battery plug assembly.


i.

Install the upper HV battery cover sub-assembly.


Result:
Proceed to
OK
NG



OK

20.CHECK FOR INTERMITTENT PROBLEMS

NG

20.CHECK FOR INTERMITTENT PROBLEMS

Result:
Result Proceed to
Problem symptom does not recur. A
Problem symptom recurs. B


HINT:
·

Since 2 trip detection logic is used, the DTC detection condition must be met twice.

·

If DTC P300449 is output again after performing the inspection, replace the inverter with converter assembly. If DTC P300449 is not output again, replace the HV battery junction block assembly.




A

21.REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

B

21.REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

NEXT

22.CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (CHECK FOR NORMAL OPERATION)
22.CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (CHECK FOR NORMAL OPERATION)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P1C8449

Result:
Result Proceed to
Difference between "Hybrid/EV Battery Voltage" and "VL-Voltage before Boosting" is always less than 50 V. A
Difference between "Hybrid/EV Battery Voltage" and "VL-Voltage before Boosting" is 50 V or more. B



A

END

B