DTC P1555-181: Reactor Temperature Sensor Circuit Low; DTC P1556-182: Reactor Temperature Sensor Circuit High: Procedure

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

   Result

   Result	Proceed to
   P1555-181 or P1556-182 only is output.	A
   Any of the following DTCs are also output.	B

   DTC No.	Relevant Diagnosis
   P3226-562, 563	DC/DC Boost Converter Temperature Sensor

   HINT: 

   P1555-181 or P1556-182 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output.

5. Turn the power switch off.

B → See step   3 

A → See step   2