Refer to the description for DTC P0A8111.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | Note |
|---|---|---|---|---|---|---|
| P0A8100 | Hybrid/EV Battery Cooling Fan 1 Control Circuit High | Both of the following conditions are met:
·
The HV battery temperature is high and the hybrid battery cooling fan speed calculated based on the battery cooling blower assembly output frequency (FP0) is not within the target control speed range. ·
The HV battery temperature is high and the battery cooling blower assembly speed is excessively high when a speed below a certain level is requested. (1 trip detection logic) |
·
Battery cooling blower assembly ·
Battery ECU assembly |
Comes on | Master warning:
Comes on |
SAE Code: P0A85 |
| P0A8115 | Hybrid/EV Battery Cooling Fan 1 Circuit Short to Auxiliary Battery or Open | Both of the following conditions are met:
·
The speed calculated based on the battery cooling blower assembly output frequency (FP0) is not within the target control speed range. ·
The battery cooling blower assembly speed is excessively high when a speed below a certain level is requested. (2 trip detection logic) |
·
Battery cooling blower assembly ·
Battery ECU assembly |
Comes on | Master warning:
Comes on |
SAE Code: P0A85 |
"Hybrid/EV Battery Cooling Fan 1 Frequency" is detected when the battery cooling blower assembly is operating and its value changes in proportion to the battery cooling blower assembly speed.
If the battery cooling blower assembly speed is excessively high, this DTC is stored.
If the battery ECU assembly detects that the speed of the battery cooling blower assembly is higher than the target speed, it will illuminate the MIL and store a DTC.
| Related DTCs | P0A85 (INF P0A8100): Hybrid/EV Battery Cooling Fan 1 Control Circuit High
P0A85 (INF P0A8115): Hybrid/EV Battery Cooling Fan 1 Circuit Short to Auxiliary Battery or Open |
| Required sensors/components | Battery cooling blower assembly |
| Frequency of operation | Continuous |
| Duration | TMC's intellectual property |
| MIL operation | 1 driving cycle / 2 driving cycles |
| Sequence of operation | None |
| The monitor will run whenever the following DTCs are not stored | TMC's intellectual property |
| Other conditions belong to TMC's intellectual property | - |
| TMC's intellectual property | - |
| Battery ECU assembly | DTC P0A85 (INF P0A8100) is not detected
DTC P0A85 (INF P0A8115) is not detected |
After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" 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.
Enter the following menus: Powertrain / HV Battery / Active Test / Control the Hybrid/EV Battery Cooling Fan.[*1]
Select fan mode 6 and operate the battery cooling blower assembly and wait for 60 seconds or more.[*2]
Operation of the battery cooling blower assembly can be confirmed by checking if air is sucked into the air intake port of the intake duct or by operation sounds.
[*1] to [*2]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
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 the normal judgment procedure again.
Refer to the wiring diagram for DTC P0A8111.
Refer to the precautions before inspecting high voltage circuit.
After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
When disconnecting and reconnecting the auxiliary battery
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Check for DTCs.
| Result | Proceed to |
|---|---|
| P0A8100 or P0A8115 only is output, or DTCs except the ones in the table below are also output. | A |
| DTCs of hybrid battery system in the table below are output. | B |
| DTCs of hybrid control system in the table below are output. | C |
| System | Relevant DTC | |
|---|---|---|
| Hybrid battery system | P060A47 | Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure |
| P060B49 | Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure | |
| P060687 | Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message | |
| Hybrid control system | P0A1F94 | Hybrid/EV Battery Energy Control Module Unexpected Operation |
Turn the ignition switch off.
A
B
C
| Proceed to |
|---|
| OK |
| NG |
OK
NG