HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): P0E512A; DC/DC Converter Current Sensor Signal Stuck In Range; 2023 - 2025 MY Corolla HV [09/2022

This DTC is stored if the value of the reactor current sensor does not change. The cause of this malfunction may be one of the following:

DESCRIPTION

MONITOR DESCRIPTION

If the value of the reactor current sensor does not change, the motor generator control ECU will illuminate the MIL and store a DTC.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

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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When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
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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.
Apply the parking brake and secure the wheels using chocks.
Turn the ignition switch to ON and turn the GTS on.
With ignition switch ON and wait for 5 seconds or more. [*1]
Turn the ignition switch to ON (READY). [*2]
Move the shift lever to D. [*3]
Depress the brake pedal firmly with your left foot and fully depress the accelerator pedal for 5 seconds, and then release it. [*4]
NOTICE:

Make sure to fully apply the parking brake and firmly depress the brake pedal to prevent the vehicle from moving.

HINT:

[*1] to [*4]: 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 / Motor Generator / Utility / All Readiness.
Check the DTC judgment result.
HINT:
- 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.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

After the ignition switch is turned off, there may be a waiting time before disconnecting the auxiliary negative (-) battery terminal.
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When disconnecting and reconnecting the auxiliary battery.
HINT:

When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

Click here

HINT:

P0E512A may be output as a result of the malfunction indicated by the DTCs in table below.
1. The chart above is listed in inspection order of priority.
2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)

Table 1

Table 2

PROCEDURE

If the "Inverter Low-voltage Circuit" inspection results are normal, perform the next step.

DTC SUMMARY