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Maintenance Information (rwd) Cadillac Brougham I

Procedures 9 illustrations ~2504 words

VIN LOCATION

The Vehicle Identification Number (VIN) is located on the left side of the dash panel at the base of the windshield. The VIN chart explains the code characters.

VIN CODE ID EXPLANATION

Numbers preceding the explanations in the legend below refer to the sequence of characters as listed on VIN identification label. See VIN example below.

VIN Code ID Explanation. Scheme 1

Scheme 1: VIN Code ID Explanation
Scheme 1: VIN Code ID Explanation

SEVERE & NORMAL SERVICE DEFINITIONS

Note. Use the Severe Service schedule if the vehicle to be serviced is operated under ANY (one or more) of these conditions

Service is recommended at mileage intervals based on vehicle operation. Service schedules are based on the following primary operating conditions

Severe Service

  1. Short Trips (4 Miles Or Less)
  2. When Most Trips Are Less Than 10 Miles And Outside Temperatures Remain Below Freezing.
  3. Towing Or Heavily Loaded
  4. Severe Dust Conditions
  5. Hot Weather, Stop-And-Go Driving
  6. Extensive Idling Conditions (Taxi Or Delivery Type Service)

Normal Service

  1. Driven More Than 10 Miles Daily
  2. No Severe Service Operating Conditions

Scheme 2

Scheme 2: SERVICE POINT LOCATIONS
Scheme 2: SERVICE POINT LOCATIONS

Scheme 3

Scheme 3
Scheme 3

Note. For more information regarding jacking or hoisting the vehicle, refer to the JACKING & HOISTING article in the WHEEL ALIGNMENT section.

SERVICE LABOR TIMES

Note. For 1990 and newer vehicles, labor times are provided, where available, within appropriate SERVICE INTERVAL table in SCHEDULED SERVICES article.

TIRE INFLATION

The tire specification decal is located on rear of the driver's door.

WHEEL TIGHTENING

All standard wheel lug nuts are tightened to 100 ft. lbs. (136 N.m).

BATTERY SPECIFICATIONS

CAUTIONWhen battery is disconnected, vehicles equipped with computers may lose memory data. When battery power is restored, driveability problems may exist on some vehicles. These vehicles may require a relearn procedure. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section.

All models use Group 75 batteries with a 630 amp cold crank rating.

SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)

Note. See the AIR BAGS article in the ACCESSORIES/SAFETY EQUIPMENT Section.

Modifications or improper maintenance, including incorrect removal and installation of the Supplemental Restraint System (SRS), can adversely affect system performance. DO NOT cover, obstruct or change the steering wheel horn pad in any way, as such action could cause improper function of the system. Use only plain water when cleaning the horn pad. Solvents or cleaners could adversely affect the air bag cover and cause improper deployment of the system.

WARNINGTo avoid injury from accidental air bag deployment, read and carefully follow all warnings and service precautions. See appropriate AIR BAGS article in ACCESSORIES/SAFETY EQUIPMENT.

Modification to the air bag system component or wiring can adversely affect system performance and possibly cause injury.

CAUTIONThe Diagnostic Energy Reserve Module (DERM) can maintain enough voltage to cause a deployment of the inflator module for up to 10 minutes after the ignition switch is turned off and the battery is disconnected. Many of the service procedures require disconnection of the inflator module to avoid an accidental deployment.
CAUTIONDisconnect negative battery cable before servicing any air bag system, steering column or passenger side dash component. After any repair, turn ignition key to the ON position from passenger's side of vehicle in case of accidental air bag inflation

ANTI-LOCK BRAKE SYSTEM

The anti-lock brake system contains electronic equipment that can be susceptible to interference caused by improperly installed or high output radio transmitting equipment. Since this interference could cause the possible loss of the anti-lock braking capability, such equipment should be installed by qualified professionals.

On models equipped with anti-lock brake systems, ALWAYS observe the following cautions

  1. DO NOT attempt to bleed hydraulic system without first referring to the appropriate ANTI-LOCK BRAKE SYSTEM article in the BRAKES Section.
  2. DO NOT mix tire sizes. As long as tires remain close to the original diameter, increasing the width is acceptable. Rolling diameter must be identical for all 4 tires. Some manufacturers recommend tires of the same brand, style and type. Failure to follow this precaution may cause inaccurate wheel speed readings.
  3. Use ONLY recommended brake fluids. DO NOT use silicone brake fluids in an ABS-equipped vehicle.

BATTERY

DO NOT test battery if it shows any signs of freezing, leaking, loose posts or low electrolyte level; an explosive condition could result.

BATTERY WARNING

WARNINGWhen battery is disconnected, vehicles equipped with computers may lose memory data. When battery power is restored, driveability problems may exist on some vehicles. These vehicles may require a relearn procedure. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION section.

REPLACING BLOWN FUSES

Before replacing a blown fuse, remove ignition key, turn off all lights and accessories to avoid damaging the electrical system. Be sure to use fuse with the correct indicated amperage rating. The use of an incorrect amperage rating fuse may result in a dangerous electrical system overload.

BRAKE PAD WEAR INDICATOR

Indicator will cause a squealing or scraping noise, warning that brake pads need replacement.

CATALYTIC CONVERTER

Continued operation of vehicle with a severe malfunction could cause converter to overheat, resulting in possible damage to converter and vehicle.

COOLANT (PROPYLENE-GLYCOL FORMULATIONS)

CAUTIONTo avoid possible damage to vehicle use only ethylene-glycol based coolants with a mixture ratio from 44-68% anti-freeze. DO NOT use 100% anti-freeze as it will cause the formation of cooling system deposits. This results in coolant temperatures of over 300° F (149°C) which can melt plastics. 100% anti-freeze has a freeze point of only -8° F (-22°C).
CAUTIONPropylene-Glycol Mixtures has a smaller temperature range than Ethylene-Glycol. The temperature range (freeze-boil) of a 50/50 Anti-Freeze/Water Mix is as follows: Propylene-Glycol -26° F (-32°C) - 257° F (125°C) Ethylene-Glycol -35° F (-37°C) - 263° F (128°C)
CAUTIONPropylene-Glycol/Ethylene-Glycol Mixtures can cause the destabilization of various corrosion inhibitors. Also Propylene-Glycol/Ethylene-Glycol has a different specific gravity than Ethylene-Glycol coolant, which will result in inaccurate freeze point calculations.

DIESEL FUEL ANTI-FUNGAL ADDITIVES

CAUTIONIf fuel contamination due to fungi or other microorganisms is suspected a fuel additive with a biocide may be used. Follow the manufacturers dosage as recommended on product label. Use biocides ONLY when necessary, excessive use can may cause other fuel system problems.

DIESEL FUEL CONTAMINATION

WARNINGDiesel fuel system may be contaminated with fungi or other microorganisms. Keep contaminated fuel away from open skin cuts or sores to prevent skin irritation or infection.

DIESEL FUEL REQUIREMENTS

CAUTIONAll diesel engines are to use Diesel Fuel #2 when the outside temperature is above 20°F (-7°C). In temperatures that are below 20°F (-7°C) use Diesel Fuel #1, this will reduce the chance of the fuel thickening and forming wax.

Note. A Diesel Fuel #1 & #2 combination (Blended Fuel) may be used, and is recommended for mild winter driving.

ELECTROSTATIC DISCHARGE SENSITIVE (ESD) PARTS

WARNINGMany solid state electrical components can be damaged by static electricity (ESD). Some will display a warning label, but many will not. Discharge personal static electricity by touching a metal ground point on the vehicle prior to servicing any ESD sensitive component.

ENGINE OIL

CAUTIONNever use non-detergent or straight mineral oil.

FUEL CONDITIONER (DIESEL ENGINES)

Allowing water to remain in fuel conditioner could result in extensive damage to or failure of fuel injection system. Diesel fuel can damage asphalt and other surfaces. Always place a drain pan under fuel conditioner to collect fuel, and dispose of fuel properly.

FUEL SYSTEM SERVICE

WARNINGRelieve fuel system pressure prior to servicing any fuel system component (fuel injection models).

HALOGEN BULBS

WARNINGHalogen bulbs contain pressurized gas which may explode if overheated. DO NOT touch glass portion of bulb with bare hands. Eye protection should be worn when handling or working around halogen bulbs.

RADIATOR CAP

CAUTIONAlways disconnect the fan motor when working near the radiator fan. The fan is temperature controlled and could start at any time even when the ignition key is in the OFF position. DO NOT loosen or remove radiator cap when cooling system is hot.

RADIATOR FAN

WARNINGKeep hands away from radiator fan.

TAILGATE (COMMERCIAL MODELS)

DO NOT drive vehicle with tailgate open, as carbon monoxide can enter vehicle.

WARRANTY INFORMATION

CAUTIONDue to the different warranties offered in various regions and the variety of after-market extended warranties available, please refer to the warranty package that came with the vehicle to verify all warranty options.

BASIC NEW CAR WARRANTY

Everything is covered for 12 months or 12,000 miles, whichever occurs first.

POWER TRAIN WARRANTY

Begins at 12 months or 12,000 miles and lasts for 6 years or 60,000 miles, whichever occurs first. Covers all moving internal and external parts, including seals and water pump on engine and clutch cover and "U" joints on transaxle. Items not covered include, accessory drive belts, clutch discs and brake pads.

SUPPLEMENTAL INFLATABLE RESTRAINT COVERAGE

Begins at Warranty Start Date and lasts 3 years regardless of mileage.

CORROSION COVERAGE

Begins at Warranty Start Date and lasts 6 years or 100,000 miles, whichever occurs first. Covers any holes in body sheet metal caused by corrosion.

EMISSIONS PERFORMANCE WARRANTY

Begins at Warranty Start Date and lasts for 5 years or 50,000 miles, whichever occurs first. Applies only in states that require EPA emission performance testing. Coverage is limited to fewer components after 2 years or 24,000 miles.

Scheme 4

Scheme 4: ACCESSORY FUSE & RELAY PANEL ID (1983-89 CADILLAC)
Scheme 4: ACCESSORY FUSE & RELAY PANEL ID (1983-89 CADILLAC)

Fuse & Relay Identification

  1. 1 - Relay - E.L.C. (1983) Blank (1983)
  2. 2 - Relay - E.L.C. (1984-89) Blank (1983)
  3. 3 - Relay - Park/Neutral (1983) Blank (1984-89)
  4. 4 - Relay - Diesel Wait Timer (1983) Blank (1984-85) Park/Neutral Relay (1986-89)
  5. 5 - Blank
  6. 6 - Relay - Antenna
  7. 7 - Relay - Horn
  8. 8 - Relay - Cold Advance Altitude Relay Blank (1983, 85-89)
  9. 9 - Relay - Rear Window Defogger
  10. 10 - Relay - Fuel Pump Relay (1983-85) Blank (1986-89)
  11. 11 - 20 Amp Fuse - ECM (1983-85) Blank (1986-89)
  12. 12 - 25 Amp Fuse - Fuel Pump (1986-89) Blank (1983-85)
  13. 13 - 3 Amp Fuse - Crank Signal (1983-85) Blank (1986-89)
  14. 14 - 15 Amp Fuse - Ignition System
  15. 15 - 3 Amp Fuse - Fuel Injector (1983-85) Blank (1986-89)
  16. 16 - 10 Amp Fuse - DFI Fuel Pump (1983-85) Blank (1986-89)
  17. 17 - 3 Amp Fuse - Fuel Injection (1983-85) Blank (1986-89)
  18. 18 - 10 Amp Fuse - Emission Control Solenoid, Ignition System (1984-85) Blank (1986-89)

Scheme 5

Scheme 5: ACCESSORY FUSE & RELAY PANEL ID (1990-92 CADILLAC)
Scheme 5: ACCESSORY FUSE & RELAY PANEL ID (1990-92 CADILLAC)

Scheme 6

Scheme 6
Scheme 6
  1. 1 - Blank
  2. 2 - Relay - Electronic Level Control
  3. 3 - Relay (5.7L) - Fuel Pump Blank (5.0L)
  4. 4 - Blank
  5. 5 - Relay - Park/Neutral
  6. 6 - Relay - Antenna
  7. 7 - Relay - Horn
  8. 8 - Blank Relay (1991-92) - Starter Interrupt
  9. 9 - Relay - Rear Window Defogger
  10. 10 - Relay - Parking Lights, Running Lights Blank (1992)
  11. 11 - 3 Amp Fuse (5.7L) - Crank Signal Blank (5.0L)
  12. 12 - 10 Amp Fuse (5.7L) - Fuel Pump Blank (5.0L)
  13. 13 - Blank
  14. 14 - 7.5 Amp Fuse (5.7L) - Fuel Injection System Blank (5.0L)
  15. 15 - Blank
  16. 16 - 15 Amp Fuse - Ignition System
  17. 17 - 3 Amp Fuse - ECM
  18. 18 - 3 Amp Fuse (5.0L) - Anti-Diesel Solenoid
  19. Blank (5.7L)
  20. Blank (1991-92)

Scheme 7

Scheme 7: FUSE PANEL IDENTIFICATION (1983-88 CADILLAC)
Scheme 7: FUSE PANEL IDENTIFICATION (1983-88 CADILLAC)

Fuse & Circuit Breaker Identification

  1. 1 - 10 Amp - Ashtray Light, Side Marker Lights, Cornering Lights, Door Ashtray Lights
  2. 2 - 3 Amp - Cruise Control (DFI Release Switch)
  3. 3 - 30 Amp (Circuit Breaker) - Power Windows
  4. 4 - 20 Amp - A/C Compressor Clutch Feed, Electronic Climate Control Programmer & Power Module, Alternator Warning Light, Rear Defogger Relay
  5. 5 - 10 Amp - Power Antenna Motor
  6. 6 - 20 Amp - Hazard Flasher, Brakelights, Electronic Climate Control, Control Head
  7. 7 - 30 Amp (Circuit Breaker) - Horn
  8. 8 - 20 Amp - Electronic Level Control (Where Applicable)
  9. 9 - 20 Amp - Courtesy Lights, Cigarette Lighters, Electronic Level Control Height Sensor
  10. 10 - 10 Amp - Electronic Level Control Exhaust
  11. 11 - 25 Amp - Rear Window Defogger
  12. 12 - 25 Amp - Windshield Wipers & Washers
  13. 13 - 10 Amp - Radio Antenna Relay Coil
  14. 14 - 20 Amp - Instrument Panel Lights, Engine Temperature Warning, Instrument Panel Cigarette Lighter, Key Warning Buzzer, Glove Box Light
  15. 15 - 20 Amp - Gauges, Warning Lights
  16. 16 - 20 Amp - Opera Lights, License Plate Light, Taillights, Side Marker Lights
  17. 17 - 20 Amp - Directional Signal Lights
  18. 18 - 10 Amp - Back-Up Lights
  19. 19 - 5 Amp - Rheostat-Controlled Instrument Panel Lights

Scheme 8

Scheme 8: FUSE PANEL IDENTIFICATION (1989-90 CADILLAC)
Scheme 8: FUSE PANEL IDENTIFICATION (1989-90 CADILLAC)
  1. 1 - 10 Amp - Engine Compartment Light (1990), Front Ashtray Light, E.C.C. Head, Radio, Theft Deterrent, Turn/Hazard, Front Marker, Park & Turn Lights, Instrument Panel Cluster (1990)
  2. 2 - 3 Amp - Cruise Control, Instrument Panel Lights (1990)
  3. 3 - 30 Amp (Circuit Breaker) - Power Windows, Trunk Release, Sun Roof
  4. 4 - 20 Amp - Air Conditioning (1989), A/C Compressor Clutch, Electronic Climate Control, Instrument Panel (1989), NO CHARGE Warning Light (1990), Rear Defogger Relay, Alternator (1990)
  5. 5 - 10 Amp - Power Antenna
  6. 6 - 20 Amp - Hazard Flasher, Brakelights, Electronic Climate Control
  7. 7 - 30 Amp (Circuit Breaker) - Horn, Power Seats, Power Door Locks, Power Seat Recliners, Trunk Lid Pull-Down
  8. 8 - 20 Amp - Gear Selector Switch, Rear Quarter Lights, Vanity Mirror Lights, Power Mirrors, Rear Compartment Lights, Door Lock Switches (1990), Instrument Courtesy Lights, Electronic Level Control, Instrument Panel Lights, Cigarette Lighter, Glove Box Light, Key Warning Buzzer, Illuminated Entry, Door Locks
  9. 9 - 10 Amp - Anti-Lock Braking System (1990)
  10. 10 - 25 Amp - Rear Window Defogger
  11. 11 - 25 Amp - Windshield Wiper/Washer
  12. 12 - 10 Amp - Radio
  13. 13 - 20 Amp - Automatic Door Locks, Illuminated Entry, Trans. Converter Clutch Brake Switch, Seat Belt Reminder (1989), Anti-Lock Brake System (1990), Theft Deterrent, Electronic Level Sensor & Relay, Emission Control Solenoid (1990), Instrument Panel Warning Lights, Audio Alarm, CHECK ENGINE Light (1989)
  14. 14 - 20 Amp - Front Cigarette Lighter, Glove Box Light, Radio, Engine Compartment Light (1989), Passive Restraint Belts Module (1990), Audio Alarm, Instrument Panel Cluster
  15. 15 - 20 Amp - Turn Signal Flasher
  16. 16 - 20 Amp - Twilight Sentinel Module, Headlight Switch, Headlight Dimmer Switch (1989), Instrument Panel Dimming Control (1990), Left Opera Light, License Plate Light, Rear Taillights, Stoplights & Turn Lights
  17. 17 - 10 Amp - Back-Up Lights (1990), Gear Selector Switch, Automatic Mirror
  18. 18 - 5 Amp - Instrument Panel (1989), Wiper/Washer (1989), Electronic Climate Control (1989), Cruise Control (1989), Radio (1989), Light Switch Light (1989), Audio Alarm Module (1989), Light Switch (1989), Dimmable Instrument Panel Lights (1990)
  1. 1 - 10 Amp - Radio, Instrument Panel Cluster, Ashtray Light, Engine Compartment Light, Cornering, Side Marker & Front Park Lights
  2. 2 - 3 Amp - Cruise Control, EVO Module, Instrument Panel Cluster
  3. 3 - Circuit Breaker - Power Windows, Trunk Release, Astroroof
  4. 4 - 20 Amp - A/C Cut-Out Relay, Electronic Climate Control, No Charge Tell-Taillight, Alternator, Rear Defogger Relay
  5. 5 - 10 Amp - Power Antenna
  6. 6 - 20 Amp - Hazard Flasher, Brakelight, Electronic Climate Control Head
  7. 7 - Circuit Breaker - Horn, Power Seats, Power Door Locks, Power Seat Recliners, Trunk Lid Pull-Down
  8. 8 - 20 Amp - Electronic Level Control, Illuminated Entry, Power Door Locks, Courtesy Lights, Gear Select Switch, Rear Quarter Lights, Lighted Vanity Mirrors, Power Mirrors, Rear Compartment Light, Right Front & Rear Doors Cigarette Lighter, Door Latch Switches, Passive Restraint
  9. 9 - 10 Amp - Anti-Lock Braking System
  10. 10 - 25 Amp - Rear Window Defogger
  11. 11 - 25 Amp - Windshield Wiper/Washer
  12. 12 - 10 Amp - Radio
  13. 13 - 20 Amp - Automatic Door Locks, Illuminated Entry, Transmission Converter Clutch Brake Switch, Anti-Lock Brake System, Theft Deterrent, Electronic Level Sensor, Instrument Panel Tell-Tails Audio Alarm Chime, Electronic Level Control Relay
  14. 14 - 20 Amp - Front Cigarette Lighter, Glove Box Light, Radio, Passive Restraint Belts Module, Audio Alarm Chime, Instrument Panel Cluster
  15. 15 - 20 Amp - Turn Signal Flasher
  16. 16 - 20 Amp - Twilight Sentinel Module, Headlight Switch, Instrument Panel Dimming Control, Left Opera Light, License Plate Light, Park/See Park Fuse
  17. 17 - 10 Amp - Back-Up Lights, Gear Selector Switch, Automatic Day Night/Mirror
  18. 18 - 5 Amp - Dimmable Instrument Panel Illumination

Scheme 9

Scheme 9: FUSE PANEL IDENTIFICATION (1993 CADILLAC)
Scheme 9: FUSE PANEL IDENTIFICATION (1993 CADILLAC)
  1. 1 - Not Used
  2. 2 - Not Used
  3. 3 - Not Used
  4. 4 - Not Used
  5. 5 - Not Used
  6. 6 - 15 Amp - Park/Neutral/Back-Up Switch, Electric Turn Flasher
  7. 7 - 10 Amp - Electronic Brake Control
  8. 8 - 25 Amp - Retained Accessory Power
  9. 9 - 10 Amp - Radio
  10. 10 - 25 Amp - Windshield Wiper/Washer
  11. 11 - 10 Amp - DERM, Low Coolant, Instrument Panel Cluster Indicators
  12. 12 - Not Used
  13. 13 - 10 Amp - Chime Module, Defogger Relay, Speed Sensor Buffer, TCC Disable Relay, Auto. Day/Night Mirror
  14. 14 - 10 Amp - Central Control Module, TPS Sensor, Electronic Level Control
  15. 15 - 10 Amp - Air Bag Dual Pole Arming Sensor
  16. 16 - 10 Amp - Generator, Cruise Control
  17. 17 - 10 Amp - Driver Memory Seat, Heated Front Seats
  18. 18 - 10 Amp - Central Control Module, Instrument Cluster, Remote Keyless Entry, Theft Deterrent Receiver
  19. 19 - 10 Amp - Retained Accessory Power
  20. 20 - 10 Amp - HVAC Solenoid Module, HVAC Control Head, Instrument Cluster
  21. 21 - 25 Amp - Retained Accessory Power, Wiper Relay
  22. 22 - 25 Amp - HVAC Power Module
  23. 23 - 10 Amp - Trunk Lid Release Switch
  24. 24 - 10 Amp - Starter Enable Relay, DERM
  25. 25 - 10 Amp - Side Mirror Defoggers
  26. 26 - 20 Amp - Trunk Light, Power Antenna
  27. 27 - 15 Amp - Delayed Interior Lights
  28. 28 - 10 Amp - Front Cigar Lighter
  29. 29 - 20 Amp - Rear Cigar Lighters
  30. 30 - 10 Amp - HVAC Control Assembly
  31. 31 - 25 Amp - ELEC. Brake/Traction Control Module
  32. 32 - Not Used
  33. 33 - 10 Amp - Chime, Instrument Cluster, Low Engine Oil, Headlight Switch, Radio
  34. 34 - 10 Amp - Central Control Module
  35. 35 - 10 Amp - Power Door Locks, Power Mirrors, Power Lumbar Seats
  36. 36 - 15 Amp - Trunk Lid Pull-Down
  37. 37 - 20 Amp - Hazard Warning Flasher
  38. 38 - 15 Amp - Front Seats Recliner Switch
  39. 39 - 20 Amp - Power Lumbar Seat Motor Control
  40. 40 - 15 Amp - Front Heated Seats Control Module
  41. 41 - 10 Amp - Instrument Cluster, Radio Control Head, Cornering Lights
  42. 42 - 10 Amp - Headlight Switch, Dimming, Interior Lights
  43. 43 - 10 Amp - Rear Tail/Side Marker Lights, License Light
  44. 44 - 20 Amp - Stop Light Brake Switch, Brake/Transmission Shift Interlock
  45. 45 - 20 Amp - Power Door Lock Relay
  46. 46 - Not Used
  47. 47 - 30 Amp Circuit Breaker - Retained Acc. Power Relay
  48. 48 - 25 Amp Circuit Breaker - Power Seat Switches, Memory Seat Module
  49. 49 - 30 Amp Circuit Breaker - Rear Defogger Relay
  50. 50 - 30 Amp Circuit Breaker - Headlight Relay, Daytime Running Lights (Canada)

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