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

HYBRID / BATTERY CONTROL  HYBRID CONTROL SYSTEM  P0ABF00  Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance  


DESCRIPTION

A battery current sensor, which is mounted on the positive cable side of each HV battery junction block assembly, detects the current flowing to or from the battery pack. The battery current sensor sends a voltage, which varies between 0 and 5 V in proportion to the amperage, to the IB0 terminal of the battery ECU assembly. Similarly, it sends a voltage, which varies between 0 and 5 V in inverse proportion to the amperage, to the IB1 terminal of the battery ECU assembly. When the voltage at the IB0 terminal is below 2.92 V and the voltage at the IB1 terminal is above 2.08 V, this indicates that the HV battery is being discharged. Additionally, Meanwhile, when the voltage at of the IB0 terminal is above 2.92 V and the voltage at of the IB1 terminal is below 2.08 V, this indicates that the HV battery is being charged. The battery ECU assembly sends the signals from its IB0 and IB1 terminals to the hybrid vehicle control ECU. The hybrid vehicle control ECU determines the charging and discharging amperage of the HV battery based on the received signals and calculates the SOC of the HV battery using the cumulative amperage value.

A460750E04
1.219,0.271 1.99,0.74 0.771,0.469 10 false Discharging Current 1.208,1.333 2.146,1.823 0.938,0.49 10 false Battery Current Sensor 0.302,0.271 0.875,0.667 0.573,0.396 10 false Charging Current 2.135,2.927 2.927,3.385 0.792,0.458 10 false Battery ECU Assembly 4.448,3.51 5.938,3.719 1.49,0.208 10 false HV Battery Current (A) 5.073,2.479 5.302,2.635 0.229,0.156 10 false IB0 6,1.792 6.229,1.948 0.229,0.156 10 false IB1 2.219,1.802 2.458,1.958 0.24,0.156 10 false VIB 2.219,2.333 2.458,2.49 0.24,0.156 10 false IB1 2.219,2.156 2.573,2.333 0.354,0.177 10 false GIB 2.219,1.979 2.458,2.135 0.24,0.156 10 false IB0 3.094,1.948 3.469,2.104 0.375,0.156 10 false (IB1) 6.771,2.031 7.083,2.208 0.313,0.177 10 false (IB0) 6.323,3.281 7.073,3.656 0.75,0.375 10 false Discharging Current 3.219,3.271 3.802,3.667 0.583,0.396 10 false Charging Current 3.375,0.375 6.156,0.635 2.781,0.26 10 false Battery Current Sensor Output Voltage 3.698,3.031 4.073,3.188 0.375,0.156 10 false +240 6.146,3.031 6.521,3.188 0.375,0.156 10 false -360 6.521,2.729 6.896,2.885 0.375,0.156 10 false 0.4 6.531,1.271 6.906,1.427 0.375,0.156 10 false 4.6 6.531,1.906 6.906,2.063 0.375,0.156 10 false 2.92 3.375,2.104 3.75,2.26 0.375,0.156 10 false 2.08 3.438,1.24 3.813,1.396 0.375,0.156 10 false 4.7 4.865,3.042 5.24,3.198 0.375,0.156 10 false 0 3.448,2.76 3.823,2.917 0.375,0.156 10 false 0.3 6.302,0.708 6.76,0.906 0.458,0.198 10 false (V) 3.667,0.708 4.125,0.906 0.458,0.198 10 false (V)

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
P0ABF00 Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance Abnormal battery current sensor characteristics:
(based on hybrid system consumption and HV battery output).
(1 trip detection logic)
·

HV battery junction block assembly

·

Battery ECU assembly

·

HV battery


Comes on Master Warning:
Comes on 		SAE Code:
P0AC0

MONITOR DESCRIPTION

The hybrid vehicle control ECU detects malfunctions of the battery current sensor by monitoring motor and generator torque. If the hybrid vehicle control ECU detects a battery current sensor malfunction, the hybrid vehicle control ECU will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs P0AC0 (INF P0ABF00): Current sensor malfunction (gain or offset)
Required sensors/components Battery current sensor
Frequency of operation Continuous
Duration TMC's intellectual property
MIL operation 1 driving cycle
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

Hybrid vehicle control ECU DTC P0AC0 (INF P0ABF00) 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 CONTROL SYSTEM>UTILITY

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

·

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



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.

Drive the vehicle for approximately 10 minutes according to the Freeze Frame Data items "Vehicle Speed", "Accelerator Position", "Hybrid/EV Battery Current", "Motor Torque" and "Generator Torque". [*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 / 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 the normal judgment procedure again.




WIRING DIAGRAM

A459771E25
1.792,0.469 2.344,0.885 0.552,0.417 10 false VIB 2.125,0.469 2.813,0.875 0.688,0.406 10 false 1 1.813,1.115 2.365,1.531 0.552,0.417 10 false IB0 1.823,1.75 2.375,2.167 0.552,0.417 10 false IB1 1.781,2.385 2.333,2.802 0.552,0.417 10 false GIB 2.125,1.115 2.813,1.521 0.688,0.406 10 false 4 2.125,1.75 2.813,2.156 0.688,0.406 10 false 2 2.125,2.396 2.813,2.802 0.688,0.406 10 false 3 5.135,0.469 5.688,0.885 0.552,0.417 10 false VIB 5.135,1.115 5.688,1.531 0.552,0.417 10 false IB0 5.146,1.75 5.698,2.167 0.552,0.417 10 false IB1 5.135,2.396 5.688,2.813 0.552,0.417 10 false GIB 4.99,3.271 6.781,3.74 1.792,0.469 10 false Battery ECU Assembly 4.865,0.469 5.552,0.875 0.688,0.406 10 false 17 4.917,1.115 5.604,1.521 0.688,0.406 10 false 5 4.917,1.75 5.604,2.156 0.688,0.406 10 false 6 4.865,2.396 5.552,2.802 0.688,0.406 10 false 18 0.333,3.083 2.521,3.51 2.188,0.427 10 false Battery Current Sensor (HV Battery Junction Block Assembly) 0.333,2.917 0.885,3.333 0.552,0.417 10 false O222 4.99,3.094 5.542,3.51 0.552,0.417 10 false O217

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




PROCEDURE

1.CHECK HARNESS AND CONNECTOR (BATTERY ECU ASSEMBLY - HV BATTERY JUNCTION BLOCK 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 ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.



b.
A517709N04
1.083,0.25 1.583,0.5 0.5,0.25 1.135,0.271 1.521,0.479 0.385,0.208 10 true O217

Disconnect the battery ECU assembly connector.

NOTICE:

Before disconnecting the connector, check that it is not loose or disconnected.



c.
A517682N04
0.083,0.5 0.583,0.75 0.5,0.25 0.146,0.521 0.531,0.729 0.385,0.208 10 true O222

Disconnect the battery current sensor connector from the HV battery junction block assembly.

NOTICE:

Before disconnecting the connector, check that it is not loose or disconnected.



d.

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

Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition
O217-6 (IB1) - O222-2 (IB1) Ignition switch off Below 1 Ω
O217-18 (GIB) - O222-3 (GIB) Ignition switch off Below 1 Ω
O217-5 (IB0) - O222-4 (IB0) Ignition switch off Below 1 Ω
O217-17 (VIB) - O222-1 (VIB) Ignition switch off Below 1 Ω


Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition
O217-6 (IB1) or O222-2 (IB1) - Other terminals and body ground Ignition switch off 10 kΩ or higher
O217-18 (GIB) or O222-3 (GIB) - Other terminals and body ground Ignition switch off 10 kΩ or higher
O217-5 (IB0) or O222-4 (IB0) - Other terminals and body ground Ignition switch off 10 kΩ or higher
O217-17 (VIB) or O222-1 (VIB) - Other terminals and body ground Ignition switch off 10 kΩ or higher



e.

Reconnect the battery current sensor connector to the HV battery junction block assembly.


f.

Reconnect the battery ECU assembly connector.


Result:
Proceed to
OK
NG



OK

2.REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

NG

REPLACE HV BATTERY

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


2.REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

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

Result:
Proceed to
NEXT



NEXT

3.CLEAR DTC
4.PERFORM ROAD TEST
a.

Check that "Hybrid/EV Battery SOC" shows 60% or less.

Powertrain > Hybrid Control > Data List
Tester Display
Hybrid/EV Battery SOC
50003 397 320
HINT:

If "Hybrid/EV Battery SOC" is 60% or more, reduce it to below 60% by leaving the hybrid system on with shift lever in N.



b.

Apply the parking brake and secure the wheels using chocks.


c.

Turn the ignition switch to ON (READY).


d.

Move the shift lever to D while depressing the brake pedal with your left foot and repeat the following steps for 1 minute or more.

HINT:

Depress and release the accelerator pedal in 5-second intervals (2.5 seconds each) continuously.


i.

While depressing the brake pedal with your left foot, depress the accelerator pedal with your right foot.


ii.

Release the accelerator pedal.



e.

Turn the ignition switch off.


Result:
Proceed to
NEXT



NEXT

5.CHECK DTC OUTPUT (HYBRID CONTROL)
5.CHECK DTC OUTPUT (HYBRID CONTROL)
a.

Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes
50001 397
Result:
Result Proceed to
P0ABF00 is not output. A
P0ABF00 is output again. B



b.

Turn the ignition switch off.



A

END

B

REPLACE BATTERY ECU ASSEMBLY

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