never gets hot when you put up the temperature

need to know if navigation or not.........try this to get codes to see what is wrong.
Fig. 8: Running The Self-Diagnosis Function (With Navigation System)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Without Navigation System
Fig. 9: Running The Self-Diagnosis Function (Without Navigation System)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch ON (II).
Press the AUTO button and then the OFF button. Continue to hold both buttons down for 1 minute.
If there is any abnormality in the system, the temperature indicator will light up the segment (A through N) corresponding to the error. The temperature indicator will then alternate every second between displaying "88" (all segments lit) and the error code segment (A through N).
NOTE: The system will only display the DTC when the AUTO and OFF buttons are pressed. If you release the buttons, the display will go blank. To return the display, simply press the AUTO then the OFF buttons again.

For heat, there is a heater control valve near the firewall that lets hot coolant in for the heater. Have someone move the selector hot/cold to verify the cable is working
See the diagram below