Contents Section: Procedures All sections

Maintenance Information Cadillac DeVille Concours I final

Procedures 6 illustrations ~2319 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

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. Towing Or Heavily Loaded
  3. Severe Dust Conditions
  4. Hot Weather, Stop-And-Go Driving
  5. 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: INFORMATION LABEL LOCATIONS

SERVICE LABOR TIMES

Note. Labor times are provided, where available, within appropriate SERVICE INTERVAL table in SCHEDULED SERVICES article.

TIRE INFLATION

Tire inflation pressures are on the tire specification decal, located on rear of the driver's door.

WHEEL TIGHTENING

All lug nuts for standard wheels should be tightened to 100 ft. lbs. (140 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 1994-96 models use Group 78A-72 batteries.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIR BAG SYSTEM

Note. See the AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT Section.

The SRS has no user-servicable parts. Always have servicing done by an authorized dealer.

WARNINGTo avoid injury from accidental air bag deployment, read and carefully follow all warnings and service precautions. See appropriate AIR BAG RESTRAINT SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section.
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 (ABS)

CAUTIONNever mix different diameter tires. On loose or uneven surfaces, the ABS system may require longer stopping distances than conventional brake systems. Exercise caution when removing mud or snow from the wheels so as not to damage the ABS wiring or speed sensors.

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 appropriate COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section below.

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.

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 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. Fan is controlled by a thermostatic switch which may come on or run for up to 15 minutes even after engine is turned off.

SPARK PLUGS

Note. Allow engine to cool before removing spark plugs from aluminum cylinder heads.

TRACTION CONTROL SYSTEM (IF EQUIPPED)

CAUTIONIf tires are allowed to spin at high speeds when TRACTION OFF light is on, tires can explode. Also, spinning the tires with the warning light on can cause the transaxle to overheat. DO NOT spin wheels above 35 MPH.

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

Bumper-to-bumper warranty covers repairs, including labor and parts, to correct defects in material or workmanship occurring during the warranty period of 4 years or 50,000 miles, whichever occurs first.

After 12 months or 12,000 miles, there is a 100 deductible per repair visit. For model years 1991-93, there is no deductible. Maintenance items such as filters, spark plugs, worn drive belts and brake linings are not covered.

POWERTRAIN WARRANTY (THROUGH 1988)

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

CORROSION COVERAGE

Begins at warranty start date and lasts 6 years or 100,000 miles, whichever occurs first. Warrant covers any holes in body sheet metal caused by corrosion.

EMISSION "DEFECT" WARRANTY

Begins at warranty start date and lasts for 5 years of 50,000 miles, whichever occurs first. Warrants that vehicle is free from defects in materials and workmanship which cause it to fail to conform to EPA regulations. Emission-related defects in components listed below, including reasonably related diagnostic costs, are covered.

  1. Thermostatic Air Cleaner Switch, Control Valve And Associated Parts
  2. Air Injection Reactor Pump, Air Distributor And Valves
  3. PCV Valve And Associated Parts
  4. EGR Valve And Associated Controls
  5. Fuel Delivery Parts
  6. Engine Computer Controls And Parts
  7. EFE Valve, Heater And Associated Parts
  8. Catalytic Converter And Associated Parts
  9. Ignition Parts And Associated Controls
  10. Spark Plugs And Ignition Wires
  11. Fuel Tank Filler Cap, Restrictor And Vapor Control Valves
  12. Evaporative Emission Control Carbon Canister And Associated Controls
  13. Oil Filler Cap (California)
  14. Fuel Tank (California)
  15. Intake And Exhaust Manifolds (California)
  16. Emission Related Hoses, Clamps, Belts, Pulleys, Tubes, Fittings, Sealing Devices, Mounting Hardware And Wiring Harnesses Used On Above Components

EMISSION "PERFORMANCE" WARRANTY

Begins at warranty start date and lasts for 5 years or 50,000 miles, whichever occurs first. Warranty applies only if vehicle has been properly maintained, but still fails a required EPA-approved emission test and failure results in owner having to bear penalty or other sanctions. After 2 years or 24,000 miles, coverage is limited to fewer components.

Scheme 3

Scheme 3: ENGINE COMPARTMENT FUSE PANEL IDENTIFICATION (1993)

Fuse & Circuit Breaker Identification

  1. 1 - 20 Amp Distributor (4.9L), Ignition Control Module (4.6L)
  2. 2 - 20 Amp DERM Module, Arming Sensor, Supplemental Restraint System
  3. 3 - 10 Amp Powertrain Control Module, Passkey Decoder Module
  4. 4 - 10 Amp Fuel Injectors 1, 4, 6 & 7
  5. 5 - 10 Amp Fuel Injectors 2, 3, 5 & 8
  6. 6 - 10 Amp A/C Compressor, Electric Mirror, Instrument Panel Cluster, DERM Module, SIR System, Keyless Entry Module, Cornering/Back-Up Lights, Chime Module, DRL Module, Twilight Sentinel, Brake Transmission Shift Interlock
  7. 7 - 20 Amp Fuel Pump, Powertrain Control Module
  8. 8 - 10 Amp Powertrain Control Module
  9. 9 - Not Used
  10. 10 - Not Used
  11. 11 - 10 Amp A/C Compressor
  12. 12 - 10 Amp Heated Windshield
  13. 13 - 20 Amp Stop Lights
  14. 14 - 20 Amp Turn/Hazard Lights
  15. 15 - 10 Amp DRL Module (Canada)
  16. 16 - 10 Amp DRL Module (Canada)
  17. 17 - Not Used
  18. 18 - 10 Amp Road Sensing Suspension (4.6L), Speed Sensitive Suspension 4.9L)
  19. 19 - 20 Amp Road Sensing Suspension
  20. 20 - Not Used
  21. 21 - Not Used
  22. 22 - 10 Amp Left Low-Beam Lights (Export)
  23. 23 - 10 Amp Right Low-Beam Lights (Export)
  24. 24 - 10 Amp Left High-Beam Light (Export)
  25. 25 - 10 Amp Right High-Beam Light (Export)
  26. 26 - 10 Amp Heated Windshield, Heater/A/C Programmer, Electronic Level Control, Defogger Relay D, Cruise Control, Powertrain Control Module
  27. 27 - 10 Amp Cooling Fans, Powertrain Control Module (4.6L), Front/Rear Heated Oxygen Sensor (4.6L)
  28. 28 - 10 Amp EGR Solenoid, Powertrain Control Module, Automatic Transaxle, EVAP Control Solenoid, Overspeed Alert Module (Export), Power Steering Pressure Switch

HIGH-CURRENT FUSE PANEL IDENTIFICATION (1994-96)

The Maxi-Fuse ("high-current") and Relay Panel is located next to the engine compartment fuse block.

WARNINGAlways disconnect battery ground cable before servicing "high-current fuses. It is recommended that "high-current" fuses be replaced by a qualified technician.

Scheme 4

Scheme 4

L/H Maxi-Fuse & Circuit Breaker Identification

  1. 1 - 50 Amp STRG 1-2 Retained Accessory Power (Radio/Wipers), Starter, Trunk Comp Fuses 8 & 9
  2. 2 - 60 Amp BODY Engine Comp Fuse 9, Road Sensing Suspension, Fog Lights, Trunk Comp Fuses 16, 17, 18, 19, 20 & 21
  3. 3 - 30 Amp Circuit Breaker SEAT Power seat switches, Lumbar Relays, Power Door Locks, Keyless Entry Module, Horns, Fuel Door/Trunk Release Switch
  4. 4 - 30 Amp IPC Powertrain Control Module, Electronic Climate Control, RAP/Illuminated Entry Module, Instrument panel Cluster, Pass-Key Decoder Module, Theft Deterrent
  5. 5 - 60 Amp HVAC L & R Heated Seats, Electronic Level Control, Deck Lid Pull Down, Power Antenna, Rear Defogger, Heated Mirrors
  6. 6 - 60 Amp STRG 3 Retained Accessory Power (Sunroof/Power Windows), Engine Comp Fuses 26, 27, & 28, Trunk Comp Fuses 3, 4, 5, 6, & 7

R/H Maxi-Fuse & Circuit Breaker Identification

  1. 1 - 30 Amp DAB Circuit Breaker Retained Accessory Power (Sunroof/Power Windows)
  2. 2 - 30 Amp RADIO Delco-Bose Speakers, Radio Control Head, Remote Radio Receiver
  3. 3 - 50 Amp COOL Cooling Fans
  4. 4 - 40 Amp HVAC BLOWER (MOTOR) HVAC Power Motor, A/C Compressor
  5. 5 - 50 Amp ABS (BRAKES) Brake Pressure Modulator Valve
  6. 6 - 50 Amp LAMPS Turn Flasher Module, Hazard Flasher, Stop/BTSI/Cruise Brake Switch, Parking Lights, Daytime Running Lights (Canada), Engine Comp Fuses 12, 13 & 14, Trunk Comp Fuses 22 & 23

Scheme 5

Scheme 5: TRUNK COMPARTMENT FUSE PANEL IDENTIFICATION (1993-96)

Fuse & Circuit Breaker Identification (1993)

  1. 1 - 10 Amp Retained Accessory Power, Illuminated Entry, DERM Module, Starter
  2. 2 - 10 Amp Catalytic Converter Alarm (Export), Fuel level Sensor, Turn Signals, Electric Mirror, Keyless Entry, Retained Accessory Power, Illuminated Entry, Theft Deterrent Module
  3. 3 - Not Used
  4. 4 - 30 Amp Headlight Washer (Export)
  5. 5 - 10 Amp Instrument Panel Cluster
  6. 6 - 10 Amp Rear Blower Motor, Console Switch
  7. 7 - 10 Amp Electric Brake Control (4.9L), Electric Brake/Traction Control (4.6L)
  8. 8 - 30 Amp Wiper/Washer Switch
  9. 9 - 10 Amp Remote Radio Receiver
  10. 10 - 30 Amp Rear Defogger
  11. 11 - 10 Amp Heated Mirrors
  12. 12 - 10 Amp Instrument Panel Cluster
  13. 13 - 10 Amp Passkey Decoder Module, Theft Deterrent Relay/Module
  14. 14 - 10 Amp Heater/A/C Programmer, Retained Accessory Power, Illuminated Accessory Power
  15. 15 - 10 Amp Rear Fog Lights (Export)
  16. 16 - 10 Amp Fog Lights (4.6L)
  17. 17 - 10 Amp Rear Blower Motor
  18. 18 - 20 Amp Cigarette Lighters, Chime Module
  19. 19 - 10 Amp Power Mirror Switch, Retained Accessory Power, Trunk/Courtesy Lights, Console Switch, Panel Light Inhibit (Export), Keyless Entry Module
  20. 20 - 10 Amp Power Door Locks, Door Lock Cylinder Light, Glove Box Light, Footwell Lights, Twilight Sentinel, DRL Module, Headlight Switch
  21. 21 - 10 Amp Vanity Mirrors, Garage Door Openers, Front/Rear Header Lights
  22. 22 - 10 Amp Radio Dimming, Headlight Switch, Instrument Panel Cluster, Left Park/Turn/Marker/Tail/Stoplights
  23. 23 - 10 Amp Right Park/Turn/Marker/Tail/Stoplights, License Lights, Engine Compartment Light
  24. 24 - 10 Amp Remote Radio Receiver, Radio Control Head
  25. 25 - 20 Amp Trunk Pull-Down, Power Antenna
  26. 26 - 20 Amp Electronic Level Control
  27. 27 - 10 Amp Passenger Heated Seat
  28. 28 - 10 Amp Driver Heated Seat

Fuse & Circuit Breaker Identification (1994-96)

  1. 1 - 10 Amp CRANK Retained Accessory Power, Illuminated Entry, DERM Module, Transaxle Range Switch (NSSS)
  2. 2 - 10 Amp IGN 1 Catalytic Converter Alarm (Export), Fuel level Sensor, Turn Signals, Electric Mirror, ,Keyless Entry, Retained Accessory Power, Illuminated Entry, Theft Deterrent Module, Turn Flasher Relay "F"
  3. 3 - 30 Amp HDLP WASH Headlight Washer Module (Export Only)
  4. 4 - Not Used
  5. 5 - 10 Amp IPC (IGN) Instrument Panel Cluster
  6. 6 - 10 Amp RTD Road Sensing Suspension, Speed Sensitive Suspension, RSS Damper Relay "F"
  7. 7 - 10 Amp ABS Electric Brake/Traction Control Module
  8. 8 - 30 Amp WIPER Wiper/Washer Switch
  9. 9 - 10 Amp RAD (IGN) Remote Radio Receiver
  10. 10 - 30 Amp R DEFOG Rear Defogger
  11. 11 - 10 Amp HTD MIRR Heated Mirrors
  12. 12 - 10 Amp IPC (BAT) Instrument Panel Cluster
  13. 13 - 10 Amp THEFT Passkey Decoder Module, Theft Deterrent Relay "D", Theft Deterrent Module
  14. 14 - 10 Amp HVAC/DABIE Heater/A/C Programmer, Retained Accessory Power, Illuminated Accessory Power
  15. 15 - 10 Amp RADIO (AMP) Active Audio Amplifier
  16. 16 - 10 Amp TRAILER Trailer L & R Turn Relay
  17. 17 - 10 Amp ANT Rear Blower Relay "E", Power Antenna Relay
  18. 18 - 20 Amp CIGAR Ciagrette Lighters, Chime Module
  19. 19 - 10 Amp BODY 2 Power Mirror Switch, Retained Accessory Power, Trunk/Courtesy Lights, Console Switch, Panel Light Inhibit (Export), Keyless Entry Module
  20. 20 - 10 Amp BODY 1 Power Door Locks, Door Lock Cylinder Light, Glove Box Light, Footwell Lights, Twilight Sentinel, DRL Module, Headlight Switch
  21. 21 - 10 Amp READ LP Vanity Mirrors, Garage Door Openers, Front/Rear Header Lights
  22. 22 - 10 Amp L PRK LP Radio Dimming, Headlight Switch, Instrument Panel Cluster, Left Park/Turn/Marker/Tail/Stoplights
  23. 23 - 10 Amp R PRK LP Right Park/Turn/Marker/Tail/Stoplights, License Lights, Engine Compartment Light
  24. 24 - 10 Amp RAD (BAT) Remote Radio Receiver, Radio Control Head
  25. 25 - 20 Amp TRUNK PLD Trunk Pull-Down, Power Antenna
  26. 26 - 20 Amp ELC Electronic Level Control
  27. 27 - 10 Amp R HTD SEAT Passenger Heated Seat
  28. 28 - 10 Amp L HTD SEAT Driver Heated Seat

Scheme 6

Scheme 6: FUSE PANEL IDENTIFICATION (1994-99)
  1. 1 - 20 Amp DISTR Ignition Control Module
  2. 2 - 20 Amp SIR DERM, Dual Pole Arming Sensor
  3. 3 - 10 Amp PCM (IGN) Powertrain Control Module, Pass-Key Decoder Module
  4. 4 - 10 Amp INJ Fuel Injectors 1, 4, 6 & 7
  5. 5 - 10 Amp INJ Fuel Injectors 2, 3, 5 & 8
  6. 6 - 10 Amp IGN 1 A/C Refrigerant Press. Sw., Transaxle Range Sw., Stop/BTSI/Cruise Brake Sw., Instrument Panel Cluster, Keyless Entry Module, DERM, Cornering Lights, Turn/Hazard Sw. Assy., Chime Module, Headlight Sw., Twilight Sentinel/DRL Module
  7. 7 - 20 Amp FUEL PUMP Fuel Pump, Oil Press. Sw., Powertrain Control Module
  8. 8 - 10 Amp PCM (BAT) Powertrain Control Module
  9. 9 - 20 Amp RTD (BAT) Road Sensing Suspension (RSS) Module
  10. 10 - Not Used
  11. 11 - 10 Amp A/C Comp A/C Compressor Clutch
  12. 12 - 30 Amp HDLPS Headlight Dimmer Sw., Headlight Relay "D" (Engine Comp. Micro Relay Center) DRL Headlight Relay "E" (With Daytime Running Lights), Power C13
  13. 13 - 20 Amp STOP LP Stop/BTSI/Cruise Sw., Stoplight Sw. Capacitor
  14. 14 - 20 Amp TURN/HAZ Hazard Flasher, Turn Flasher Relay, Turn Flasher Module
  15. 15 - 10 Amp DRL Daytime Running Lights (Canada)
  16. 16 - 10 Amp DRL DRL Module (Canada), Left & Right Lo Beam Headlamp
  17. 17 - 10 Amp HTD W/S Heated Windshield Control Module
  18. 18 - 10 Amp LR STRUT Left Rear Strut
  19. 19 - 10 Amp RR STRUT Right Rear Strut
  20. 20 - 10 Amp LF STRUT Left Front Strut
  21. 21 - 10 Amp RF STRUT Right Front Strut
  22. 22 - 10 Amp L HDLP LO Left Lo Beam Headlamp
  23. 23 - 10 Amp R HDLP LO Right Lo Beam Headlamp
  24. 24 - 10 Amp L HDLP HI Left Hi Beam Headlamp
  25. 25 - 10 Amp R HDLP HI Right Hi Beam Headlamp
  26. 26 - 10 Amp IGN 3 Rear Defogger Relay, Electronic Level Control (ELC), Heated Windshield, Heater and A/C Programmer, Cruise Control
  27. 27 - 10 Amp COOL FAN Cooling Fan, Extended Travel Brake Sw., Powertrain Control Module (PCM), Cooling Fan Relays 1, 2, and 3, Front & Rear Heated O2 Sens.
  28. 28 - 10 Amp TRANS Overspeed Alert Module (Export), Power Steering Pressure Sw., Exhaust Gas Recirculation (EGR) Valve, Transaxle Shift Solenoids A & B, Evaporative Emission Control Solenoid, Powertrain Control Module (PCM), Torque Converter Clutch Solenoid, TCC Brake Sw.