DTC Code | DTC Name |
---|---|
P0A1A-200 | Generator Control Module |
P0A1A-792 | Generator Control Module |
P0A1A-793 | Generator Control Module |
DESCRIPTION
The inverter with converter assembly (MG ECU) monitors its internal operation and detects the following malfunctions.
DTC No. | INF Code | DTC Detection Condition | Trouble Area |
---|---|---|---|
P0A1A | 200 | The difference between the resolver angle for control and estimated resolver angle exceeds the allowable value. |
|
792 | Resolver REF signal cycle error | ||
793 | Resolver REF signal oscillation stop error |
WIRING DIAGRAM
INSPECTION PROCEDURE
CAUTION:
Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
Tech Tips
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
Tech Tips
After repair, confirm that no DTCs are output by performing DTC Output Confirmation Operation Click here.
PROCEDURE
CHECK DTC OUTPUT (HV)
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Check if DTCs are output.
Result | ||||||
---|---|---|---|---|---|---|
|
DTC No. | Relevant Diagnosis |
---|---|
P0A3F-243 | Drive Motor "A" Position Sensor Circuit |
P0A45-669 | Drive Motor "B" Position Sensor Circuit |
P0A4B-253 | Generator Position Sensor Circuit |
P0A4C-513 | Generator Position Sensor Circuit Range / Performance |
P0A4D-255 | Generator Position Sensor Circuit Low |
Turn the power switch off.
B |
GO TO DTC CHART Click here |
A |
CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY)
CAUTION:
Be sure to wear insulated gloves.
Check that the service plug grip is not installed.
Note
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
Note
Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector does not pull out.
Check the connection of the low voltage connector of the inverter with converter assembly.
OK |
---|
The connector is connected securely and there are no contact problems. |
Tech Tips
When connecting the connector, insert it with the locking lever in the raised position. Rotate the lever downward and make sure that the connector is pulled into its socket. When the locking lever is in its fully closed position, a click will be heard as its locking claws engage. After the click is heard, pull up on the connector to confirm that it is properly connected.
NG |
CONNECT SECURELY |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - GENERATOR RESOLVER)
CAUTION:
Be sure to wear insulated gloves.
Disconnect the low voltage connector D44 from the inverter with converter assembly.
Turn the power switch on (IG).
*1 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the low voltage connector of the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Connect the low voltage connector from the inverter with converter assembly.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK GENERATOR RESOLVER
Disconnect the low voltage connector D44 from the inverter with converter assembly.
*1 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the inverter with converter assembly connector.
NG |
CHECK CONNECTOR CONNECTION CONDITION (GENERATOR RESOLVER CONNECTOR) Click here |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - MOTOR RESOLVER)
CAUTION:
Be sure to wear insulated gloves.
Disconnect the low voltage connector D44 from the inverter with converter assembly.
Turn the power switch on (IG).
*1 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the low voltage connector of the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Connect the inverter with converter assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK MOTOR RESOLVER
Disconnect the low voltage connector D44 from the inverter with converter assembly.
*1 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the inverter with converter assembly connector.
NG |
CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR) Click here |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - REAR MOTOR RESOLVER)
CAUTION:
Be sure to wear insulated gloves.
Disconnect the low voltage connector A79 from the inverter with converter assembly.
Turn the power switch on (IG).
*1 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the low voltage connector of the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Connect the inverter with converter assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK REAR MOTOR RESOLVER
Disconnect the low voltage connector A79 from the inverter with converter assembly.
*1 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the inverter with converter assembly connector.
NG |
CHECK CONNECTOR CONNECTION CONDITION (REAR MOTOR RESOLVER CONNECTOR) Click here |
OK |
CHECK CONNECTOR CONNECTION CONDITION (GENERATOR RESOLVER CONNECTOR)
Check the connection of the generator resolver connector.
OK |
---|
The connector is connected securely and there are no contact problems. |
NG |
CONNECT SECURELY |
OK |
CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR)
Check the connection of the motor resolver connector.
OK |
---|
The connector is connected securely and there are no contact problems. |
NG |
CONNECT SECURELY |
OK |
CHECK CONNECTOR CONNECTION CONDITION (REAR MOTOR RESOLVER CONNECTOR)
Check the connection of the rear motor resolver connector.
OK |
---|
The connector is connected securely and there are no contact problems. |
NG |
CONNECT SECURELY |
OK |
REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here
CHECK CONNECTOR CONNECTION CONDITION (GENERATOR RESOLVER CONNECTOR)
Check the connection of the generator resolver connector.
OK |
---|
The connector is connected securely and there are no contact problems. |
NG |
CONNECT SECURELY |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - GENERATOR RESOLVER)
Disconnect the low voltage connector D44 from the inverter with converter assembly.
*1 | Front view of wire harness connector (to Generator Resolver) |
*2 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Disconnect the generator resolver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
The generator resolver is not available separately. If it requires replacement, replace the hybrid vehicle transaxle assembly.
Connect the generator resolver connector.
Connect the inverter with converter assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here
CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR)
Check the connection of the motor resolver connector.
OK |
---|
The connector is connected securely and there are no contact problems. |
NG |
CONNECT SECURELY |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - MOTOR RESOLVER)
Disconnect the low voltage connector D44 from the inverter with converter assembly.
*1 | Front view of wire harness connector (to Motor Resolver) |
*2 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Disconnect the motor resolver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
The motor resolver is not available separately. If it requires replacement, replace the hybrid vehicle transaxle assembly.
Connect the motor resolver connector.
Connect the inverter with converter assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here
CHECK CONNECTOR CONNECTION CONDITION (REAR MOTOR RESOLVER CONNECTOR)
Check the connection of the rear motor resolver connector.
OK |
---|
The connector is connected securely and there are no contact problems. |
NG |
CONNECT SECURELY |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - REAR MOTOR RESOLVER)
Disconnect the low voltage connector A79 from the inverter with converter assembly.
*1 | Front view of wire harness connector (to Rear Motor Resolver) |
*2 | Front view of wire harness connector (to Inverter with Converter Assembly) |
Disconnect the rear motor resolver connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
The rear motor resolver is not available separately. If it requires replacement, replace the rear traction motor with transaxle assembly.
Connect the rear motor resolver connector.
Connect the inverter with converter assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
REPLACE REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY Click here