1998 Cadillac Eldorado BaseFACTORY OEM SERVICE PROCEDURE

Component Locations

COMPONENT LOCATIONS

Component Location
Accessory Time Delay Relay Left Front Of Passenger Compartment, Taped To Body Harness
Controlled Power Relay (1) In Truck Compartment Relay Center No. 3
Courtesy Relay (1) In Truck Compartment Relay Center No. 2
Daytime Running Lights (DRL) Relay In Engine Compartment Relay Center
Engine Compartment Fuse/Relay Center (2) Left Side Of Engine Compartment, Near Strut Tower
Engine Compartment Relay Center (2) Near Engine Compartment Fuse/Relay Center
Fuel Level Sensor In Fuel Tank
Headlight Relay In Engine Compartment Relay Center
Headlight Switch Left Side Of Instrument Panel, Left Of Steering Column
HI/LO Beam Relay In Engine Compartment Relay Center
Inadvertent Power Relay (2) Above Engine Compartment Relay Center
Left & Right MAXIFUSE Blocks (2) Near Engine Compartment Fuse/Relay Center
Park Relay (1) In Truck Compartment Relay Center No. 5
Parking Light Relay (1) In Truck Compartment Relay Center No. 2
Platform Zone Module (PZM) (3) (1) Front Of Trunk Compartment, On Electronics Bay
Rear Compartment Lid Release Solenoid On Rear Compartment Lid Latch
Reverse Light Relay (1) In Truck Compartment Relay Center No. 5
Trunk Compartment Fuse Block (1) Front Of Trunk Compartment, On Electronics Bay
Trunk Compartment Relay Centers (1) Front Of Trunk Compartment, On Electronics Bay
Trunk Tamper Switch On Trunk Compartment Lid Latch
(1) See Figure .
(2) See Fig 1 .
(3) Body Control Module (BCM) may also be referred to as Platform Zone Module (PZM).
Fig 1: Identifying Engine Compartment Electrical Centers
G98D00441Courtesy of GENERAL MOTORS CORP.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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