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 2.8 V and the voltage at the IB1 terminal is above 2.2 V, this indicates that the HV battery is being discharged. Additionally, Meanwhile, when the voltage at of the IB0 terminal is above 2.8 V and the voltage at of the IB1 terminal is below 2.2 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.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
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) |
| Comes on | Master Warning Light: Comes on |
DTC No. | Data List |
---|---|
P0ABF00 | - |
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:
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HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
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HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
*a | Without waiting for 10 minutes |
If the HV battery stored without insulating the connectors and terminals, electric shock or fire may result.
*a | Dealer |
*b | Battery Collection Agent |
Click here
Click here
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
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PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (BATTERY ECU ASSEMBLY - 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.
(b) Remove the No. 1 HV battery hose.
Click here
(c) Disconnect the A No. 1 HV supply stack sub-assembly connector. NOTICE: Before disconnecting the connector, check that it is not loose or disconnected. | |
(d) Disconnect the y16 battery ECU assembly connector. NOTICE: Before disconnecting the connector, check that it is not loose or disconnected. | |
(e) Measure the resistance according to the value(s) in the tables below. Standard Resistance (Check for Open):
Standard Resistance (Check for Short):
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(f) Reconnect the y16 battery ECU assembly connector.
(g) Reconnect the A No. 1 HV supply stack sub-assembly connector.
(h) Install the No. 1 HV battery hose.
NG | GO TO STEP 9 |
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2. | CHECK HARNESS AND CONNECTOR (NO. 2 HV SUPPLY STACK SUB-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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Remove the No. 1 HV battery hose.
Click here
(c) Disconnect the A No. 2 HV supply stack sub-assembly connector. NOTICE: Before disconnecting the connector, check that it is not loose or disconnected. | |
(d) Disconnect the y14 battery current sensor connector from the HV battery junction block assembly. NOTICE: Before disconnecting the connector, check that it is not loose or disconnected. | |
(e) Measure the resistance according to the value(s) in the tables below. Standard Resistance (Check for Open):
Standard Resistance (Check for Short):
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(f) Reconnect the y14 battery current sensor connector to the HV battery junction block assembly.
(g) Reconnect the A No. 2 HV supply stack sub-assembly connector.
(h) Install the upper No. 1 HV battery hose.
NG | REPLACE NO. 2 HV SUPPLY STACK SUB-ASSEMBLY |
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3. | 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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Remove the No. 1 HV battery hose.
Click here
(c) Disconnect the y16 battery ECU assembly connector. NOTICE: Before disconnecting the connector, check that it is not loose or disconnected. | |
(d) Disconnect the y14 battery current sensor connector from the HV battery junction block assembly. NOTICE: Before disconnecting the connector, check that it is not loose or disconnected. | |
(e) Measure the resistance according to the value(s) in the tables below. Standard Resistance (Check for Open):
Standard Resistance (Check for Short):
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(f) Reconnect the y14 battery current sensor connector to the HV battery junction block assembly.
(g) Reconnect the y16 battery ECU assembly connector.
(h) Install the No. 1 HV battery hose.
NG | GO TO STEP 8 |
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4. | REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY |
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5. | CLEAR DTC |
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6. | PERFORM ROAD TEST |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Data List / Hybrid/EV Battery SOC.
Powertrain > Hybrid Control > Data List Tester Display |
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Hybrid/EV Battery SOC |
(d) Check that "Hybrid/EV Battery SOC" shows 60% or less.
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.
(e) Apply the parking brake and secure the wheels using chocks.
(f) Turn the power switch on (READY).
(g) 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.
(1) While depressing the brake pedal with your left foot, depress the accelerator pedal with your right foot.
(2) Release the accelerator pedal.
(h) Turn the power switch off.
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7. | CHECK DTC OUTPUT (HYBRID CONTROL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes Result | Proceed to |
---|---|
P0ABF00 is not output. | A |
P0ABF00 is output again. | B |
(e) Turn the power switch off.
A | COMPLETED |
B | REPLACE BATTERY ECU ASSEMBLY |
8. | CHECK HARNESS AND CONNECTOR (NO. 2 HV SUPPLY STACK SUB-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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Remove the No. 1 HV battery hose.
Click here
(c) Disconnect the A No. 1 HV supply stack sub-assembly connector. NOTICE: Before disconnecting the connector, check that it is not loose or disconnected. | |
(d) Check the terminals of the male side of the A No. 1 HV supply stack sub-assembly connector.
OK:
The terminals are free of foreign matter and not damaged.
(e) Reconnect the A No. 1 HV supply stack sub-assembly connector.
(f) Install the upper No. 1 HV battery hose.
OK | REPLACE NO. 1 HV SUPPLY STACK SUB-ASSEMBLY |
NG | REPLACE NO. 2 HV SUPPLY STACK SUB-ASSEMBLY |
9. | CHECK HARNESS AND CONNECTOR (NO. 2 HV SUPPLY STACK SUB-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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Remove the No. 1 HV battery hose.
Click here
(c) Disconnect the A No. 1 HV supply stack sub-assembly connector. NOTICE: Before disconnecting the connector, check that it is not loose or disconnected. | |
(d) Check the terminals of the male side of the A No. 1 HV supply stack sub-assembly connector.
OK:
The terminals are free of foreign matter and not damaged.
(e) Reconnect the A No. 1 HV supply stack sub-assembly connector.
(f) Install the upper No. 1 HV battery hose.
OK | REPLACE NO. 1 HV SUPPLY STACK SUB-ASSEMBLY |
NG | REPLACE NO. 1 HV SUPPLY STACK SUB-ASSEMBLY AND NO. 2 HV SUPPLY STACK SUB-ASSEMBLY |