A/C clutch Relay
Thread Starter
Melting Slicks
Joined: Feb 2005
Posts: 2,135
Likes: 0
From: Sebastian Florida
St. Jude Donor '06
A/C clutch Relay
Where is it located on a 93, I know it is around the ECM.
But Where????
Yes, I have the helms, only the 1st book somehow got lost during my last move.
But Where????
Yes, I have the helms, only the 1st book somehow got lost during my last move.
Melting Slicks
Joined: Aug 1999
Posts: 2,240
Likes: 42
From: Baltimore, MD USA
The A/C Clutch Relay is mounted on the passenger side plastic wheel well housing where it curves in towards the rear.
The relay has 4 wires going to it.
20 awg. Brown wire has 12 volts on it when ignition is in Run.
22 awg. Dark Green/White wire. The ECM grounds this wire to energize the relay.
16 awg. Brown wire also has 12 volts on it when ignition is in Run.
16 awg. Dark Green wire. When the relay closes the 12 volts from the 16awg. Brown wire goes thru the relay to this wire which provides 12 volts to the AC clutch.
The relay has 4 wires going to it.
20 awg. Brown wire has 12 volts on it when ignition is in Run.
22 awg. Dark Green/White wire. The ECM grounds this wire to energize the relay.
16 awg. Brown wire also has 12 volts on it when ignition is in Run.
16 awg. Dark Green wire. When the relay closes the 12 volts from the 16awg. Brown wire goes thru the relay to this wire which provides 12 volts to the AC clutch.
Melting Slicks
Joined: Aug 1999
Posts: 2,240
Likes: 42
From: Baltimore, MD USA
If you have the C68 Electronic Climate Control, there is no Blower Relay. The Blower Motor is driven by the Blower Motor Control Module located inside the top of the evaporator housing.
The C60 manual AC used two relays. A Low Blower Relay and a High Blower Relay mounted in the same area as the AC Clutch Relay.
The C60 manual AC used two relays. A Low Blower Relay and a High Blower Relay mounted in the same area as the AC Clutch Relay.
Last edited by Hooked on Vettes; Aug 9, 2006 at 05:39 PM.
