Condenser Fan Always On

CIRCUIT DESCRIPTION
The A/C condenser fan relay coil receives ignition voltage through the DEF fuse and the relay switch receives battery voltage through the HTR fuse. The Powertrain Control Module (PCM) energizes and de-energizes the relay through the condenser fan relay control circuit. The PCM initiates [1][2]condenser fan operation in response to an A/C system request, to an engine overheating condition, or to an Engine Coolant Temperature (ECT) sensor malfunction.

DIAGNOSTIC AIDS
The PCM initiates [1][2]condenser fan operation when any one of the following conditions are met:
^ The Engine Coolant Temperature (ECT) is 110°C (230°F) or higher. Connect a scan tool in order to determine ECT. Refer to Symptoms - Cooling System in Cooling System.
^ The PCM detects an ECT sensor malfunction. Refer to the following in Computers and Control Systems:
- DTC P0116 Testing and Inspection
- DTC P0117 Testing and Inspection
- DTC P0118 Testing and Inspection
^ The A/C system is operating.

TEST

Steps 1-9: