Toyota Corolla Cross: Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Battery (P0A6912,...,P0A6C1F)
DESCRIPTION
The motor generator control ECU (MG ECU), which is built into the inverter with converter assembly, monitors its internal operation and will store DTCs if it detects a malfunction.
|
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
|---|---|---|---|---|---|---|
|
P0A6912 | Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Battery |
Rear motor inverter phase V current sensor high resolution signal circuit (short to +B) (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P0A6B |
|
P0A6914 | Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Ground or Open |
Rear motor inverter phase V current sensor high resolution signal circuit (short to ground or open) (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P0A6A |
|
P0A691C | Drive Motor "B" Phase V Current(High Resolution) Circuit Voltage Out of Range |
Rear motor inverter phase V current sensor high resolution signal circuit (out of range) (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P1C38 |
|
P0A691F | Drive Motor "B" Phase V Current(High Resolution) Circuit Intermittent |
Out of range detected in rear motor inverter phase V current sensor when P0C7917, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored. (1 trip detection logic) |
| Does not come on |
Master Warning: Does not come on |
SAE Code: P1C39 |
|
P0A6C12 | Drive Motor "B" Phase W Current(High Resolution) Circuit Short to Battery |
Rear motor inverter phase W current sensor high resolution signal circuit (short to +B) (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P0A6E |
|
P0A6C14 | Drive Motor "B" Phase W Current(High Resolution) Circuit Short to Ground or Open |
Rear motor inverter phase W current sensor high resolution signal circuit (short to ground or open) (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P0A6D |
|
P0A6C1C | Drive Motor "B" Phase W Current(High Resolution) Circuit Voltage Out of Range |
Rear motor inverter phase W current sensor high resolution signal circuit (out of range) (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P1C3A |
|
P0A6C1F | Drive Motor "B" Phase W Current(High Resolution) Circuit Intermittent |
Out of range detected in rear motor inverter phase W current sensor when P0C7917, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored. (1 trip detection logic) |
| Does not come on |
Master Warning: Does not come on |
SAE Code: P1C3B |
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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- 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 wait for 5 seconds or more.
- 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 driving pattern again.
CAUTION / NOTICE / HINT
CAUTION:
Refer to the precautions before inspecting high voltage circuit.
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NOTICE:
- After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary 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.
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HINT:
- P0A6912, P0A6914, P0A691C, P0A691F, P0A6C12, P0A6C14, P0A6C1C or P0A6C1F may be output as a result of the malfunctions indicated by the DTCs in table below.
- The chart above is listed in inspection order of priority.
- 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.)
|
Malfunction Content | System |
Relevant DTC | |
|---|---|---|---|
|
Power source circuit malfunction |
Motor generator control system |
P06B01C | Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range |
|
P06D61C | Generator Control Module Offset Power Circuit Voltage Out of Range | ||
|
System malfunction | Motor generator control system |
P0A7973 | Drive Motor "B" Inverter Actuator Stuck Closed |
PROCEDURE
|
1. | CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR) |
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|
Result | Proceed to |
|---|---|
|
OK | A |
|
NG (The connector is not connected securely.) |
B |
| NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) |
C |
| A | .gif) | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
| B | | CONNECT SECURELY |
| C | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Drive Motor "A" Inverter Actuator Stuck Open (P0A7872)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC is stored when the motor generator control system is malfunctioning and current does not flow as commanded. The cause of this malfunction may be one of the
Drive Motor "A" Inverter Actuator Stuck Closed (P0A7873)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC is stored when a short is detected in the inverter with converter assembly (motor inverter) or the hybrid vehicle transaxle assembly (motor (MG2)). The cau
Drive Motor "A" Inverter Stuck On (P0A789E,P1C5D19)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC indicates that a large current flowed through the motor inverter. The cause of this malfunction may be one of the following:
Area Main Malfunction
SEE MORE:
Message Not Displayed on Multi-information Display When AUTO Function Set to
ON/OFF
DESCRIPTION
When the AUTO function is set to ON/OFF, a message is displayed
on the multi-information display in the combination meter assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
The electric parking brake may still operate up to 20 seconds after
the ignition switch is tu
Installation
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 AIR FUEL RATIO SENSOR
89467B
- -
2 WIRE HARNESS CLAMP BRACKET
- -
- -
3 REMOVE DASH PANEL HEAT INSURATOR
5
