DESCRIPTION
Refer to the description for DTC P0340-886 Click here.
DTC No. | INF Code | DTC Detection Condition | Trouble Area |
---|---|---|---|
P0343 | 747 | GI signal is not input for 2 sec. or more while the engine is running. |
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WIRING DIAGRAM
Refer to the wiring diagram for DTC P0340-886 Click here.
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 the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
Turn the power switch on (READY).
With the vehicle stopped, push the P position switch (transmission shift main switch).
Depress the accelerator pedal to start the engine.
Depress the accelerator pedal and maintain the engine speed at 1000 rpm or more for 5 seconds or more.
PROCEDURE
CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)
Connect the intelligent tester to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Engine and ECT/ Trouble Codes.
Check if DTCs are output.
Result | ||||||
---|---|---|---|---|---|---|
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DTC No. | Relevant Diagnosis |
---|---|
P0340 | Camshaft Position Sensor Circuit Malfunction |
P0342 | Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor) |
P0343 | Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor) |
Turn the power switch off.
B |
GO TO DTC CHART Click here |
A |
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 |
---|---|
P0A1B (all INF codes)*1 | Drive Motor "A" Control Module |
Tech Tips
*1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.
P0343-747 may be set due to a malfunction which also causes the DTCs in the preceding table to be set. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.
Turn the power switch off.
B |
GO TO DTC CHART Click here |
A |
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 | ||||||
---|---|---|---|---|---|---|
|
Turn the power switch off.
B |
A |
CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)
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 CONNECTOR CONNECTION CONDITION (ECM CONNECTOR)
Check the connections of the ECM connectors.
OK |
---|
The connectors are connected securely and there are no contact problems. |
NG |
CONNECT SECURELY |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - ECM)
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.
Disconnect the low voltage connector A59 from the inverter with converter assembly.
Disconnect connector D28 from the ECM.
Disconnect connector A21 from the power management control ECU.
Turn the power switch on (IG).
*1 | Front view of wire harness connector (to Inverter with Converter Assembly) |
*2 | Front view of wire harness connector (to ECM) |
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
Note
Turning the power switch on (IG) with the inverter with converter assembly connector and ECM connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
Turn the power switch off.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | ||||||
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Standard Resistance (Check for Short) | ||||||
---|---|---|---|---|---|---|
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Connect the power management control ECU connector.
Connect the ECM connector.
Connect the inverter with converter assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here
CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR)
Check the connections of the ECM connectors.
OK |
---|
The connectors are connected securely and there are no contact problems. |
NG |
CONNECT SECURELY |
OK |
CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - ECM)
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.
Disconnect the low voltage connector A59 from the inverter with converter assembly.
Disconnect connector D28 from the ECM.
Disconnect connector A21 from the power management control ECU.
*1 | Front view of wire harness connector (to Inverter with Converter Assembly) |
*2 | Front view of wire harness connector (to ECM) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | ||||||
---|---|---|---|---|---|---|
|
Standard Resistance (Check for Short) | ||||||
---|---|---|---|---|---|---|
|
Connect the power management control ECU connector.
Connect the ECM connector.
Connect the inverter with converter assembly connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK HARNESS AND CONNECTOR (ECM - POWER MANAGEMENT CONTROL ECU)
Disconnect connector D28 from the ECM.
Disconnect connector A21 from the power management control ECU.
Disconnect the low voltage connector A59 from the inverter with converter assembly.
*1 | Front view of wire harness connector (to ECM) |
*2 | Rear view of wire harness connector (to Power Management Control ECU) |
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.
Connect the power management control ECU connector.
Connect the ECM connector.
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK 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.
Disconnect the low voltage connector A59 from the inverter with converter assembly.
*1 | Component without harness connected (Inverter with Converter Assembly) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Connect the inverter with converter assembly connector.
NG |
REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here |
OK |
CHECK POWER MANAGEMENT CONTROL ECU
Disconnect connectors A21 and L5 from the power management control ECU.
*1 | Component without harness connected (Power Management Control ECU) |
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Connect the power management control ECU connector.
NG |
REPLACE POWER MANAGEMENT CONTROL ECU Click here |
OK |
REPLACE ECM Click here