How to test and replace faulty relays in a Cadillac DeVille and DTS?

The relays are used in the vehicle for transmitting electrical signals to components such as fuel injection system, horns, starter and fog lamps. In a relay, there is a control circuit that opens and closes a power circuit with low current and high current respectively. If a relay becomes defective, its related component will not function properly. Many relays are usually located in engine compartments including interior fuse/relay boxes while other models have their fuse blocks or electrical centers under the rear seat or in the trunk. Follow these procedures to remove and test suspected faulty relays or have them evaluated by a dealer service department or repair shop. It is necessary to replace faulty relays with complete units. Most of these vehicles use relays that meet "ISO" relay type standards which are identified by numbered terminals showing their usual circuits' connections and functions. These relays have two main terminal layouts. Two of the relay terminals serve as the control circuit and connect to the relay coil, while the remaining terminals function as the power circuit. When energized, the coil generates a magnetic field that closes the large contacts of the power circuit supplying power to the loads in this circuit. Usually, terminals 85 and 86 are used as control circuits with terminal 86 connected to battery positive (B+) voltage when it has diode while terminal 85 grounded on some applications. For relays containing a resistor, terminals 85 and 86 can be connected in either direction concerning B+ and ground. Terminal 30 is generally connected to battery voltage (B+) source for circuit loads; whereas terminal 87 connects to downstream path of controlled component's circuitry. Those few types having several alternative load or ground connections may often be labeled as 87A, 87B, 87C etcetera. To determine if continuity exists throughout the entire relay control coil an ohmmeter should be used. During testing it is important to follow polarity indicated within the illustration, reversing the ohmmeter leads to check continuity in the other direction. A relay that contains a resistor should have consistent resistance in either direction, whereas a diode would demonstrate high resistance when its applied polarity is opposite to the reverse polarity. In case the ohmmeter registers infinite resistance in both directions then replace the relay. Furthermore, the vehicle's relay can be taken out of it and continuity tested between its power circuit terminals where terminal 30 and 87 should not show any continuity if the relay is de-energized. If correct fused jumper wires are connected to terminal 86 and 85 and from positive battery terminal to ground respectively, then there must be clicking sound at this relay. By placing these jumper wires across power circuit terminals, one can test for continuity using continuity tester between terminals 30 and 87.Within these tests, if relay fails it should be replaced as necessary.

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40 Relays found

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Cadillac Deville RELAY ASM,ACSRY TIME DELAY CUTOFF *GRAY
Part Number: 13500114
$9.30 MSRP: $19.52
You Save: $10.22 (53%)
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Product Specifications
- Replaces: 12193606, 19115080, 15328866, 12135034, 15393412, 12088567, 12135170, 19116057
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Cadillac Deville | 4 DOOR, DEVILLE, HIGH LUXURY, SEVILLE, SLS, STS, TOURING 4 DOOR, TOURING SEDAN | 8 Cyl 4.6L
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Cadillac Deville Relay Asm,Multiuse *Gray
Part Number: 13503102
$7.65 MSRP: $15.80
You Save: $8.15 (52%)
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Product Specifications
- Replaces: 12177236, 12193614, 12088592, 12088576, 12135175, 12193604, 15328864
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2005 Cadillac Deville | DEVILLE, HIGH LUXURY, SEVILLE, SLS, STS, TOURING 4 DOOR, TOURING SEDAN | 8 Cyl 4.6L
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Cadillac Deville RELAY ASM,FAN CONT
Part Number: 13503103
$4.69 MSRP: $10.49
You Save: $5.80 (56%)
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Product Specifications
- Other Name: Fan Relay, Fuel Pump Relay, Relay
- Replaces: 19115298, 12135198, 12193612, 12177234, 12077865, 12193602, 21997408, 15328865, 19116363
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2005 Cadillac Deville | DEVILLE, HIGH LUXURY, SEVILLE, SLS, STS, TOURING 4 DOOR, TOURING SEDAN | 8 Cyl 4.6L
- 1996 Cadillac Deville | 4 DOOR | 8 Cyl 4.6L
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Cadillac Deville Relay,Secondary Air Injection Pump
Part Number: 15319851
$34.58 MSRP: $65.24
You Save: $30.66 (47%)
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Product Specifications
- Other Name: RELAY, Emission Control System; Relay
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Cadillac Deville | DEVILLE, HIGH LUXURY, TOURING 4 DOOR, TOURING SEDAN | 8 Cyl 4.6L
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Cadillac Deville Relay,Instrument Panel Wiring Harness *Black
Part Number: 13502674
$18.41 MSRP: $34.73
You Save: $16.32 (47%)
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Product Specifications
- Other Name: RELAY, Horn
- Replaces: 14100455
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1987 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.1L, 8 Cyl 4.1L, 8 Cyl 5.7L Diesel
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Cadillac Deville RELAY ASM,WSW MOT *BLACK
Part Number: 13500126
$11.40 MSRP: $20.44
You Save: $9.04 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: 92199311, 92181835, 12077866, 12135180, 15393413, 19115082, 15328867, 19116058
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Cadillac Deville | 4 DOOR, DEVILLE, HIGH LUXURY, SEVILLE, SLS, STS, TOURING 4 DOOR, TOURING SEDAN | 8 Cyl 4.6L
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Cadillac Deville Relay Asm,Dr Lock <Use 1C5L8570A>
Part Number: 19119238
$47.16 MSRP: $70.20
You Save: $23.04 (33%)
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Product Specifications
- Other Name: RELAY, Door and End Gate Electrical; Actuator Relay, Lock Relay, Relay
- Replaces: 89027051, 12065122
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1999 Cadillac Deville | 4 DOOR, DEVILLE | 8 Cyl 4.6L, 8 Cyl 4.9L
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Cadillac Deville Relay Asm,Blower Motor<See Guide/Contact Bfo>
Part Number: 84095360
$47.15 MSRP: $105.24
You Save: $58.09 (56%)
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Product Specifications
- Other Name: RELAY ASM,BLO MOT
- Replaced by: 19118886
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 Cadillac Deville | 4 DOOR | 8 Cyl 4.6L
- 1994 Cadillac Deville | 4 DOOR | 8 Cyl 4.9L
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Cadillac Deville Relay Assembly, Multiuse
Part Number: 13502676
$6.13 MSRP: $11.56
You Save: $5.43 (47%)
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Product Specifications
- Other Name: RELAY, Radio Receiver; Fuel Pump Relay, Horn Relay, Relay
- Replaces: 12065118, 12135084, 92109510, 12065125
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Cadillac Deville | 4 DOOR | 8 Cyl 4.6L, 8 Cyl 4.9L
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Cadillac Deville Relay Assembly, Iso Base
Part Number: 25530733
$10.40 MSRP: $15.55
You Save: $5.15 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: RELAY, Fuel Pump
- Replaces: 88922587
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1993 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, FUNERAL COACH, LIMOUSINE 4 DOOR, TOURING 4 DOOR | 8 Cyl 4.5L, 8 Cyl 4.9L
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Cadillac Deville Relay Asm,Glowplug
Part Number: 560580
$13.81 MSRP: $45.10
You Save: $31.29 (70%)
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Product Specifications
- Other Name: RELAY, Voltage and Glow Plug; Glow Plug Relay
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1984 Cadillac Deville | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, FORMAL LIMOUSINE, LIMOUSINE | 8 Cyl 5.7L Diesel
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Cadillac Deville Flasher,Hazard Lamp
Part Number: 19209674
$14.23 MSRP: $25.52
You Save: $11.29 (45%)
Product Specifications
- Other Name: FLASHER, Chassis/Body Marker/Hazard
- Replaces: 491391, 10039390, 11515735, 00491391, 10178780, 10041073, 15648653
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1997 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, CONVERSION, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART, TOURING 4 DOOR | 6 Cyl 4.1L, 6 Cyl 4.3L Diesel, 8 Cyl 4.1L, 8 Cyl 4.5L, 8 Cyl 4.6L, 8 Cyl 4.9L, 8 Cyl 5.7L Diesel
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Cadillac Deville Relay,Fan Control
Part Number: 25553347
$1.52 MSRP: $2.39
You Save: $0.87 (37%)
Product Specifications
- Other Name: RELAY, A/C Electrical
- Replaces: 12065115, 12077874
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, TOURING 4 DOOR | 8 Cyl 4.9L
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Cadillac Deville Flasher,Turn Signal Lamp
Part Number: 10041074
Product Specifications
- Other Name: FLASHER, Turn Signal Lamp; Turn Signal Flasher
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, TOURING 4 DOOR | 8 Cyl 4.9L
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Cadillac Deville Relay Assembly, End Gate Release
Part Number: 10026663
Product Specifications
- Other Name: RELAY, Early Fuel Evaporation Control; Blower Motor Relay, Lock Solenoid, Relay, Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985 Cadillac Deville | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR FWD, FUNERAL COACH, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.3L Diesel, 8 Cyl 4.1L
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Cadillac Deville Flasher Assembly, Turn Signal Lamp
Part Number: 3543667
Product Specifications
- Other Name: FLASHER, Turn Signal Lamp
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1997 Cadillac Deville | 4 DOOR | 8 Cyl 4.6L, 8 Cyl 4.9L
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Cadillac Deville Relay Asm
Part Number: 25537493
Product Specifications
- Other Name: RELAY, Radio Speaker Amplifier
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, TOURING 4 DOOR | 8 Cyl 4.9L
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Cadillac Deville Relay Asm,Diesel Wait Indicator Lamp
Part Number: 22517700
Product Specifications
- Other Name: RELAY, Voltage and Glow Plug
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1984 Cadillac Deville | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, FORMAL LIMOUSINE, LIMOUSINE | 8 Cyl 5.7L Diesel
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Cadillac Deville Relay,Passenger Seat Bottom Adjust Wiring Harness
Part Number: 20455524
Product Specifications
- Other Name: RELAY, Front Seat Adjuster
- Position: Bottom Passenger Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985 Cadillac Deville | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR FWD, FUNERAL COACH, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.3L Diesel, 8 Cyl 4.1L
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Cadillac Deville Relay Asm,Headlamp Auto Control
Part Number: 1626732
Product Specifications
- Other Name: RELAY, Capsule/Headlamp Warning
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1984 Cadillac Deville | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 4 DOOR, FORMAL LIMOUSINE, LIMOUSINE | 6 Cyl 4.1L, 8 Cyl 4.1L, 8 Cyl 5.7L Diesel

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Cadillac Deville Relay Parts Questions & Experts Answers

Relay Asm,Dr Lock <Use 1C5L8570A>
19119238
Q: How to test and replace faulty relays in a Cadillac DeVille and DTS?
A: The relays are used in the vehicle for transmitting electrical signals to components such as fuel injection system, Horns, starter and fog lamps. In a relay, there is a control circuit that opens and closes a power circuit with low current and high current respectively. If a relay becomes defective, its related component will not function properly. Many relays are usually located in engine compartments including interior fuse/relay boxes while other models have their fuse blocks or electrical centers under the rear seat or in the trunk. Follow these procedures to remove and test suspected faulty relays or have them evaluated by a dealer service department or repair shop. It is necessary to replace faulty relays with complete units. Most of these vehicles use relays that meet "ISO" relay type standards which are identified by numbered terminals showing their usual circuits' connections and functions. These relays have two main terminal layouts. Two of the relay terminals serve as the control circuit and connect to the relay coil, while the remaining terminals function as the power circuit. When energized, the coil generates a magnetic field that closes the large contacts of the power circuit supplying power to the loads in this circuit. Usually, terminals 85 and 86 are used as control circuits with terminal 86 connected to battery positive (B+) voltage when it has diode while terminal 85 grounded on some applications. For relays containing a resistor, terminals 85 and 86 can be connected in either direction concerning B+ and ground. Terminal 30 is generally connected to battery voltage (B+) source for circuit loads; whereas terminal 87 connects to downstream path of controlled component's circuitry. Those few types having several alternative load or ground connections may often be labeled as 87A, 87B, 87C etcetera. To determine if continuity exists throughout the entire relay control coil an ohmmeter should be used. During testing it is important to follow polarity indicated within the illustration, reversing the ohmmeter leads to check continuity in the other direction. A relay that contains a resistor should have consistent resistance in either direction, whereas a diode would demonstrate high resistance when its applied polarity is opposite to the reverse polarity. In case the ohmmeter registers infinite resistance in both directions then replace the relay. Furthermore, the vehicle's relay can be taken out of it and continuity tested between its power circuit terminals where terminal 30 and 87 should not show any continuity if the relay is de-energized. If correct fused jumper wires are connected to terminal 86 and 85 and from positive battery terminal to ground respectively, then there must be clicking sound at this relay. By placing these jumper wires across power circuit terminals, one can test for continuity using continuity tester between terminals 30 and 87.Within these tests, if relay fails it should be replaced as necessary.