The battery ECU assembly monitors an internal operation of the hybrid vehicle control ECU. If it detects a malfunction, it will be output this DTC and performs fail-safe control.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | Note |
|---|---|---|---|---|---|---|
| P1C8549 | High Voltage Power Resource Internal Electronic Failure | An abnormal signal is detected by the battery ECU assembly (excessive discharging current).
(1 trip detection logic) |
Hybrid vehicle control ECU | Does not come on | Master Warning:
Comes on |
SAE Code: P3004 |
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.
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for 2 minutes or more.
Turn the ignition switch to ON and turn the GTS on.
Drive the vehicle for approximately 10 minutes according to the freeze frame data items "Vehicle Speed", "Accelerator Position" and "Hybrid/EV Battery Current".
Enter the following menus: Powertrain / HV Battery / Utility / All Readiness.
Check the DTC judgment result.
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 driving pattern again.
Check for DTCs.
| Result | Proceed to |
|---|---|
| "P1C8549" only is output. | A |
| DTCs except "P1C8549" of hybrid battery system are output. | B |
| DTCs except "P1C8549" of hybrid control system are output. | C |
Turn the ignition switch off.
A
B
C