DTC P0343-747: Camshaft Position Sensor "A" Circuit High Input: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
4. Check if DTCs are output.

   Result

   Result	Proceed to
   DTC P0340 is not output.	A
   DTC P0340 is output.	B

5. Turn the power switch off.

B → See step   8 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (READY).
3. Check if the engine can start.
4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
5. Check if DTCs are output.

   Result

   Result	Proceed to
   The engine can start and DTC P0340 is not output within 10 seconds.	A
   The engine can start and DTC P0340 is output within 10 seconds.	B
   The engine cannot start.

   HINT: 

   Waiting is necessary because the detection time for DTC P0340 is about 10 seconds.

6. Turn the power switch off.

B → See step   8 

A: Go to next step 

1. Check the connection of the hybrid vehicle control ECU connectors.
   Fig 1: Checking Connections Of C28 & A58 Hybrid Vehicle Control ECU Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   The connectors are connected securely and there are no contact problems.

   HINT: 

   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: Go to next step 

1. 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 service information 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.

2. Check the connection of the low voltage connector of the inverter with converter assembly.
   Fig 2: Checking Connection Of Low Voltage C28 & A58 Inverter With Converter Assembly Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   The connectors are connected securely and there are no contact problems.

   HINT: 

   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: Go to next step 

1. 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 service information because this may cause a malfunction.

2. Disconnect connector A58 from the hybrid vehicle control ECU.
3. Disconnect the low voltage connector A59 from the inverter with converter assembly.
4. Turn the power switch on (IG).
5. Measure the voltage according to the value(s) in the table below.
   Fig 3: Identifying A58 Hybrid Vehicle Control ECU & A59 Inverter with Converter Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A58-14 (GO) - Body ground	Power switch on (IG)	Below 1 V

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Hybrid Vehicle Control ECU)
   *2	Front view of wire harness connector (to Inverter with Converter Assembly)

   NOTE:

   Turning the power switch on (IG) with the inverter with converter assembly connector and the hybrid vehicle control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

6. Turn the power switch off.
7. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Switch Condition	Specified Condition
   A58-14 (GO) - A59-13 (GI)	Power switch off	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Switch Condition	Specified Condition
   A58-14 (GO) or A59-13 (GI) - Body ground and other terminals	Power switch off	10 kΩ or higher

8. Connect the inverter with converter assembly connector.
9. Connect the hybrid vehicle control ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Remove the hybrid vehicle control ECU.
2. Measure the resistance according to the value(s) in the table below.
   Fig 4: Identifying C28 & A58 Hybrid Vehicle Control ECU Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A58-14 (GO) - C28-14 (E1)	Power switch off	100 Ω or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Hybrid Vehicle Control ECU)

3. Install the hybrid vehicle control ECU.

NG → See step   10 

OK: Go to next step 

1. Disconnect connector A59 from the inverter with converter assembly.
2. Measure the resistance according to the value(s) in the table below.
   Fig 5: Identifying A59 From The Inverter With Converter Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A59-13 (GI) - A59-11 (GND1)	Power switch off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Component without harness connected (Inverter with Converter Assembly)

3. Connect the inverter with converter assembly connector.

NG → See step   9 

OK → See step   10