2005 Cadillac STS Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

11 Alternator / Generator parts for the 2005 Cadillac STS come from 10 brands — REMY, GM GENUINE, TYC and 7 other brands. The "Popular" part is GM GENUINE 84009373.

The New section lists 4 options from GM GENUINE, TYC, WAI GLOBAL and 1 other brand — brand-new units rather than rebuilt ones. GM GENUINE 84009373 is listed in this group.

The Remanufactured section lists 7 options from ACDELCO, BOSCH, DENSO and 4 other brands — factory-rebuilt units with new wear components. ACDELCO 3342952A is listed in this group.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

One part is listed for the 2005 Cadillac STS — DAYCO 892006.

This table covers the sirens in the anti-theft system. Read more

One part is listed for the 2005 Cadillac STS — GM GENUINE 15213135.

This table covers the Automatic Headlamp sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

3 Automatic Headlamp Sensor parts are listed for the 2005 Cadillac STS, from GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include GM GENUINE 13498958, STANDARD MOTOR PRODUCTS EFL172 and WELLS 5S7218.

This table covers the Battery Current sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Battery Current Sensor parts for the 2005 Cadillac STS come from 2 brands — GM GENUINE and WELLS.

Part numbers include GM GENUINE 13505369 and WELLS 5S6706.

This table covers the terminals and clamps that connect cables to the battery posts. Read more

One part is listed for the 2005 Cadillac STS — DEKA 00351.

This table covers the covers that protect battery terminals. Read more

GM GENUINE supplies both parts for the 2005 Cadillac STS.

Part numbers include GM GENUINE 12010050 and GM GENUINE 19119011.

This table covers the brackets that mount the Battery Tray. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2005 Cadillac STS — DORMAN 700251.

This table covers the body-control modules that run lighting, locks and wipers. Read more

This group shows a single part: CARDONE 732403.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

33 Fuse parts are listed for the 2005 Cadillac STS, from BUSSMANN and LITTELFUSE. BUSSMANN ATM10 carries the "Popular" badge. 10 Amp, 15 Amp, 2 Amp, 20 Amp, 25 Amp, 30 Amp, 40 Amp, 50 Amp, 60 Amp and 7.5 Amp are all represented, and 30 Amp alone accounts for 6 parts.

This table covers the HID Lighting ballasts. Read more

3 HID Lighting Ballast parts for the 2005 Cadillac STS come from 3 brands — AUTOTECNICA, DORMAN and WELLS.

Listed part numbers: AUTOTECNICA CA1320411, DORMAN 601172 and WELLS 6R1079.

This table covers the horns mounted in the front of the vehicle. Read more

FIAMM supplies the 13 Horn parts for the 2005 Cadillac STS. FIAMM 7210223 carries the "Popular" badge.

In the Accessory Replacement grade, FIAMM supplies 7 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 7210223.

The Standard Replacement section lists 6 options from FIAMM — built to original-equipment specification. FIAMM 7201223 is listed in this group.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

This group shows a single part: GM GENUINE 15212382.

This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

4 Parking Aid Sensor parts for the 2005 Cadillac STS come from 4 brands — GM GENUINE, NTK, STANDARD MOTOR PRODUCTS and 1 other brand.

Listed part numbers: GM GENUINE 88891836, NTK PA0019 and STANDARD MOTOR PRODUCTS PPS71, plus the other parts above.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

6 Speed Sensor parts are listed for the 2005 Cadillac STS, from STANDARD MOTOR PRODUCTS, VEMO, DELPHI and 2 other brands. DELPHI SS11813 carries the "Popular" badge.

In the Economy grade, VEMO supplies 1 part: the catalog's value-priced group. A representative part number is VEMO V20720506.

The Standard Replacement section: 5 options from STANDARD MOTOR PRODUCTS, DELPHI, WALKER PRODUCTS and 1 other brand. DELPHI SS11813 is listed in this group.

Listed part numbers: DELPHI SS11813, VEMO V20720506 and STANDARD MOTOR PRODUCTS SC460, plus the other parts above.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

14 Starter Motor parts for the 2005 Cadillac STS come from 9 brands — ACDELCO, PURE ENERGY, REMY and 6 other brands. The "Popular" part is TYC 106497.

The New section: 7 options from TYC, ULTRA-POWER, ACDELCO and 4 other brands. TYC 106497 is listed in this group.

The Remanufactured section: 7 options from GM GENUINE, ACDELCO, FVP and 4 other brands. GM GENUINE 3231629 is listed in this group.

This table covers the Yaw sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

WELLS supplies both parts for the 2005 Cadillac STS.

This group includes WELLS 5S8014 and WELLS 5S6707.