Compressor Clutch Diode HVAC: Service and Repair

DIODE REPLACEMENT

1. Disconnect and isolate the negative battery cable.
2. Locate the diode in the A/C clutch wire harness and remove the protective covering.

Diode Identification:

3. Remove the diode from the wire harness while paying attention to the current flow direction.
4. Remove the insulation from the wires in the harness. Only remove enough insulation to solder in the new diode.
5. Install the new diode in the harness, making sure current flow is correct. If necessary refer to the appropriate wiring diagram for current flow.

CAUTION: To prevent damage to the diode and wiring, DO NOT use acid core solder.

6. Solder the connections together using rosin core type solder only.
7. Tape the diode to the harness using electrical tape making, sure the diode is completely sealed from the elements.
8. Reconnect the negative battery cable, and test the affected systems.