DESCRIPTION
The battery ECU assembly monitors its internal operation and will store these DTCs when it detects an internal malfunction.
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
---|---|---|---|---|---|---|
P1AFC00 | System Voltage (AM) Circuit Voltage Below Threshold |
The battery ECU assembly shutdown memory procedure did not complete normally in consecutive 40 trips. (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P1AFC |
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.
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HINT:
WIRING DIAGRAM
Refer to the wiring diagram for DTC P056014.
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CAUTION / NOTICE / HINT
CAUTION:
Refer to the precautions before inspecting high voltage circuit.
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NOTICE:
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HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
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PROCEDURE
1. | CHECK FUSE (ECU-B NO. 2) |
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NG | ![]() | REPLACE FUSE (ECU-B NO. 2) |
|
2. | CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY) |
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NG | ![]() | CONNECT SECURELY |
|
3. | CHECK HARNESS AND CONNECTOR (AM VOLTAGE) |
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OK | ![]() | REPLACE BATTERY ECU ASSEMBLY |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY ECU ASSEMBLY POWER SOURCE CIRCUIT) |