DTC 2223

^ No signal from altitude sensor.

This code may be caused by:

a. Faulty sensor.
b. Open circuit between terminal #3 of altitude sensor and ground.
c. Open or grounded circuit between terminal #1 of altitude sensor and terminal #25 of fuel control unit, or terminal #2 of ignition control unit.
d. Open or grounded circuit between terminal #2 of altitude sensor and terminal #21 of ignition control unit.
e. Open or grounded circuit between terminal #26 of fuel control unit and terminal #21 of ignition control unit, or terminal #1 of air flow sensor potentiometer.