DTC P0343-747: Camshaft Position Sensor "A" Circuit High Input [12/2014 - ]: Procedure

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

   Result

   Result	Proceed to
   SFI system DTCs are not output.	A
   Any of the following DTCs are also output.	B

   DTC No.	Relevant Diagnosis
   P0340	Camshaft Position Sensor Circuit Malfunction

5. Turn the ignition switch off.

B → See step   7 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   Result

   Result	Proceed to
   None of the following DTCs are output.	A
   Any of the following DTCs are also output.	B

   DTC No.	Relevant Diagnosis
   P06B0-163	Sensor Power Supply "A" Circuit/Open
   P06D6-511	Sensor Reference Voltage "F" Circuit/Open
   P06E6-164	Sensor Power Supply "C" Circuit/Open
   P0A1B-198, 786, 794	Drive Motor "A" Control Module
   P1C2B-192	Drive Motor "A" A/D Converter Circuit
   P1C73-512	Sensor Standard Voltage "F" Circuit/Open
   P1CA7-193	Drive Motor Control Module Malfunction
   P1CAD-168	Drive Motor "A" Position Sensor Angle Malfunction
   P1CB0-795	Drive Motor "A" Position Sensor REF Signal Cycle Malfunction
   P1CB3-796	Drive Motor "A" Position Sensor REF Signal Stop Malfunction
   P3134-661	Communication Error from Drive Motor "A" to Generator

   HINT: 

   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.

5. Turn the ignition switch off.

B → See step   9 

A: 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 ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

2. Check the connector connections and contact pressure of the low voltage connectors of the inverter with converter assembly. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [12/2014 - ] .

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   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.

   OK

   The connectors are connected securely and there are no contact pressure 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 the connector connections and contact pressure of the relevant terminals for the ECM connectors. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [12/2014 - ] .

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   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.

   OK

   The connectors are connected securely and there are no contact pressure 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 ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

2. Disconnect the connector A47 from the inverter with converter assembly.
3. Disconnect connector A40 from the ECM.
4. Connect the cable to the negative (-) auxiliary battery terminal.
5. Turn the ignition switch to ON (IG).
6. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A47-29 (GI) - Body ground	Ignition switch ON (IG)	Below 1 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Inverter with Converter Assembly)
   *b	Front view of wire harness connector (to ECM)

   NOTE:

   Turning the ignition switch to 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.

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

   Standard Resistance (Check for Open)

   Tester Connection	Switch Condition	Specified Condition
   A47-29 (GI) - A40-43 (G2O)	Ignition switch off	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Switch Condition	Specified Condition
   A47-29 (GI) or A40-43 (G2O) - Body ground and other terminals	Ignition switch off	10 kΩ or higher

9. Disconnect the cable from the negative (-) auxiliary battery terminal.
10. Connect the ECM connector.
11. Connect the inverter with converter assembly connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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 ignition switch to ON (READY), unless instructed by the appropriate service information because this may cause a malfunction.

2. Disconnect connector A47 from the inverter with converter assembly.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   A47-29 (GI) - A47-28 (GND1)	Ignition switch off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

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

4. Connect the inverter with converter assembly connector.

NG → See step   10 

OK → See step   8