HYBRID CONTROL SYSTEM, Diagnostic DTC:P0AC0-817
| DTC Code | DTC Name |
|---|---|
| P0AC0-817 | Hybrid Battery Pack Current Sensor Circuit Range / Performance |
DESCRIPTION
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A battery current sensor is installed to the positive (+) cable side of the HV battery and detects current flowing from the HV battery. The battery current sensor outputs voltage, which changes between 0 and 5 V according to the detected amperage, to the IB terminal of the battery voltage sensor. The battery voltage sensor sends signals to the power management control ECU. The power management control ECU determines the charging and discharging amount of the HV battery based on the received signals and calculates the SOC of the HV battery through the accumulated amperage.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0AC0-817 | Abnormal battery current sensor characteristics An abnormality in the battery current sensor characteristics is detected based on the relationship between hybrid system power consumption and battery power output. (1 trip detection logic) |
|
| DTC No. | Data List |
|---|---|
| P0AC0-817 | - |
INSPECTION PROCEDURE
Tech Tips
After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
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Drive the vehicle for approximately 10 minutes according to the freeze frame data items "Vehicle Spd", "Accelerator Degree", "Power Resource IB", "M(MG2) Trq Exec Val" and "G(MG1) Trq Exec Val".
PROCEDURE
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CHECK DTC OUTPUT (HYBRID CONTROL)
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Connect the GTS to the DLC3.
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Turn the power switch on (IG).
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Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
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Check for DTCs.
Result Result Proceed to P0AC0-817 only is output. A P0AFC-123 is output. B -
Turn the power switch off.
B 
GO TO DTC CHART (P0AFC-123) Click here
A 
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REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY
NEXT
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CLEAR DTC
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Connect the GTS to the DLC3.
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Turn the power switch on (IG).
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Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
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Read and record the DTCs and freeze frame data.
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Clear the DTCs and freeze frame data.
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Turn the power switch off.
NEXT
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PERFORM ROAD TEST
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Perform a road test.
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
NEXT
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CHECK DTC OUTPUT (HYBRID CONTROL)
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Connect the GTS to the DLC3.
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Turn the power switch on (IG).
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Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
-
Check for DTCs.
Result Result Proceed to P0AC0-817 is not output. A P0AC0-817 is output again. B -
Turn the power switch off.
B
REPLACE BATTERY VOLTAGE SENSOR Click here
A 
COMPLETED
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