DTC SUMMARY
MALFUNCTION DESCRIPTION
When the hybrid control system is activated, the hybrid vehicle control ECU checks the power supply voltage of the battery voltage sensor and detects malfunction.
The cause of this malfunction may be one of the following:
DESCRIPTION
When the hybrid control system is activated, the hybrid vehicle control ECU checks the power supply voltage of the battery voltage sensor.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P0AFC49 | Hybrid/EV Battery Sensor Module Internal Electronic Failure | Abnormal battery voltage sensor power source voltage: Power source voltage of the battery voltage sensor drops during precharge. (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
DTC No. | Data List |
---|---|
P0AFC49 |
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MONITOR DESCRIPTION
When the hybrid vehicle control ECU detects a low power supply voltage for the battery voltage sensor while pre-charge is occurring, it determines that there is a malfunction in the battery voltage sensor circuit. If the hybrid vehicle control ECU detects a malfunction, it will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P0AFC (INF P0AFC49): Hybrid/EV battery pack sensor module |
Required sensors/components | - |
Frequency of operation | - |
Duration | - |
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 P0AFC (INF P0AFC49) 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
Refer to the wiring diagram for DTC P0AFC00.
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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 |
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 (IGCT VOLTAGE) |
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OK | REPLACE BATTERY VOLTAGE SENSOR |
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2. | CHECK HARNESS AND CONNECTOR (BATTERY VOLTAGE SENSOR - BODY GROUND) |
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OK | REPAIR OR REPLACE HARNESS OR CONNECTOR (IGCT NO. 2 FUSE - BATTERY VOLTAGE SENSOR) |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY VOLTAGE SENSOR - BODY GROUND) |