Diagnostic Test

PERFORM THE A/C COOLDOWN TEST 

1. The following condition must be met before running the A/C Cooldown test.
   • No Powertrain Control Module (PCM) DTCs present.
   • No Communication DTCs present.
   • Condenser cooling fan working properly.
   • No active HVAC evaporator temperature sensor, sun sensor, recirculation, mode, or blend door actuator DTCs present.
   • The refrigerant system must be fully charged.
   • The blower motor must operate correctly in all speeds.
   • The evaporator temperature must be above 12.7° C (55° F).
   • The A/C compressor must be turned off.
   • Blower must be on high.

   Are all of the above conditions met?

   Yes 

   • Run the A/C Cooldown test.

   No 

   • Go to the Service Information for additional Cooldown Test related diagnostic information and testing procedures and repair as necessary. Refer to DIAGNOSIS AND TESTING .
     NOTE:

     Run the Cooldown Test again after any repairs are performed.

   • If the Cooldown Test passes, testing is complete.