GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Relay Block - Body Relays, Except Envoy


Object Number: 668212  Size: LF
(1)Park Lamp Relay
(2)Courtesy Lamp Relay
(3)Retained Accessory Power (RAP) Relay
(4)Power Seats Circuit Breaker
(5)Power Windows Circuit Breaker
(6)Inadvertent Power Relay
(7)Door Lock Relay
(8)Headlamp Ground Relay
(9)Door Unlock Relay - Driver
(10)Door Unlock Relay
Figure 2:

Relay Block - Body, Envoy Only


Object Number: 668222  Size: LF
(1)Park Lamp Relay
(2)Courtesy Lamp Relay
(3)Retained Accessory Power (RAP) Relay
(4)Power Seats Circuit Breaker
(5)Power Windows Circuit Breaker
(6)Inadvertent Power Relay
(7)Door Lock Relay
(8)Headlamp High Beam Relay
(9)Door Unlock Relay - Driver
(10)Door Unlock Relay