Temperature Control Switch Circuit (Passenger's) Troubleshooting
  1. Turn the ignition switch ON (II), and check the same terminals for voltage to body ground.
Is there any voltage?
YES -
Repair short to power in the wire(s) between the climate control unit and the passenger's temperature control switch. This short may also damage the climate control unit. Repair the short to power before replacing the climate control unit .■
NO -
Check for loose wires or poor connections at the climate control unit 32P connector and at the passenger's temperature control switch 5P 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 .■