Lexus NX: When Replacing Or Removing/installing Parts

 HV Main Relay (P3110-223)

DESCRIPTION The hybrid vehicle control ECU monitors the IGCT relay and detects the following malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P3110-223 HV Main Relay IGCT relay stuck on (+B short): IGCT relay is stuck on or a short to

 Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter

DESCRIPTION The navigation ECU receives a vehicle speed signal from the combination meter assembly. HINT: A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the transistor in the combination meter assembly.