MDX V6-3471cc 3.5L (2002)
Is there battery voltage?
YES - Check for loose wires or poor connections at climate control unit connector B (26P) and at the A/C pressure switch 4P connector. If the
connections are good, substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate
control unit.
NO - Repair the open in the wire between the climate control unit and the A/C pressure switch.
10. Check for proper A/C system pressure.
Is the pressure within specifications?
YES - Replace the A/C pressure switch.
NO - Repair the A/C pressure problem.