1998 Cadillac CateraFACTORY OEM SERVICE PROCEDURE

Component Locations

COMPONENT LOCATIONS

Component Location
Body Control Module (BCM) Mounted On Right "A" Pillar, Behind Trim Panel
Cellular Telephone Center Console
Data Link Connector (DLC) Left Of Steering Column
Door Lock Relay Behind BCM
Electronic Control Module (ECM) In Left Front Corner Of Engine Compartment, Above Battery
Fuel Tank Filler Door Lock Release Switch Center Of Instrument Panel
Fuse Block Under Left Side Of Instrument Panel
Headlight Relay (High Beam)
Left (K73) (1) In Relay Box (Position No. 7)
Right (K132) (1) In Relay Box (Position No. 9)
Horn Relay K63 (1) In Relay Box (Position No. 8)
Low Beam Relay K131 (1) In Relay Box (Position No. 4)
Multifunction Relay Module K134 (1) Under Left Side Of Instrument Panel
Relay Box (1) Under Left Side Of Instrument Panel, To Right Of Steering Column
Remote Control Door Lock Receiver (RCDLR) On Left Side Of Rear Compartment
Parking Light Relay K130 (1) In Relay Box Position No. 3)
Power Distribution Fuse Block In Left Front Corner Of Engine Compartment, Mounted To ECM, Above Battery
Stoplight Switch On Brake Pedal
Transmission Control Selector Switch On Gearshift Lever
Wiper Motor In Center Rear Of Engine Compartment
(1) See Fig 1 .
Fig 1: Locating & Identifying Relays
G97C28201Courtesy 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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