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. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   Result

   DTC No.	Relevant Diagnosis
   P3226-562, 563	Boost converter temperature sensor

YES → GO TO DTC CHART 

NO → REPLACE INVERTER WITH CONVERTER ASSEMBLY