Buzzers, Relays & Timers
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
BUZZERS, RELAYS & TIMERS LOCATION
| Component | Location |
|---|---|
| A/C COMP Relay | In underhood fuse block. See Figure. |
| Automatic Level Control Compressor Relay | Near underhood fuse block. See Figure. |
| Auxiliary Battery Relay | Right rear of engine compartment. See Figure. |
| Auxiliary Battery Relay Electrical Connector | Right rear of engine compartment. See Figure. |
| DEFOG Relay | In body relay block. See Figure. |
| DRIVER UNLOCK Relay | In left I/P fuse block. |
| DRL Relay | In underhood fuse block. See Figure. |
| Electronic Adjustable Pedals Relay | Behind lower left of dash. |
| FOG LP Relay | In underhood fuse block. See Figure. |
| Fuel Pump (F/PMP) Relay | In underhood fuse block. See Figure. |
| Fuel Pump Relay (Secondary) (W/Dual Tanks) | At left side of engine compartment, on underhood fuse block bracket. |
| HDLP-HI Relay | In underhood fuse block. See Figure. |
| HDLP-LOW Relay | In underhood fuse block. See Figure. |
| HORN Relay | In underhood fuse block. See Figure. |
| IGN 1 Relay | In underhood fuse block. See Figure. |
| LOCK Relay | In left I/P fuse block. See Figure. |
| PARK LP Relay | In underhood fuse block. See Figure. |
| Power Take-Off (PTO) Relay | Behind underhood fuse block. See Figure. |
| PRIME F/PMP Relay | In underhood fuse block. |
| Roof Beacon Relay | At lower left "B" pillar. See Figure. |
| RR FOG LP Relay | In left I/P fuse block. See Figure. |
| STARTER Relay | In underhood fuse block. See Figure. |
| Sun Roof Relay | At lower side of right "A" pillar. See Figure. |
| UNLOCK Relay | In left I/P fuse block. See Figure. |
| W/S WASH Relay | In underhood fuse block. See Figure. |