2015 Toyota Sienna 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

12 Alternator / Generator parts for the 2015 Toyota Sienna come from 9 brands — PURE ENERGY, REMY, TERREPOWER and 6 other brands. The "Popular" part is WAI GLOBAL 11326N.

The New section lists 5 options from WAI GLOBAL, PURE ENERGY, REMY and 2 other brands — brand-new units rather than rebuilt ones. WAI GLOBAL 11326N is listed in this group.

The Remanufactured section lists 7 options from ACDELCO, DENSO, BOSCH and 4 other brands — factory-rebuilt units with new wear components. ACDELCO 3342926A 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

6 Alternator / Generator Pulley parts are listed for the 2015 Toyota Sienna, from AUTOTECNICA, LITENS, ACDELCO and 3 other brands. AUTOTECNICA TY1416792 carries the "Popular" badge.

Listed part numbers: AUTOTECNICA TY1416792, LITENS 920954A and ACDELCO 37026P, plus the other parts above.

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

One part is listed for the 2015 Toyota Sienna — AUTOTECNICA TY1321507.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

7 Battery parts are listed for the 2015 Toyota Sienna, from DEKA, BOSCH, EXIDE and 2 other brands. DEKA 9A3585 carries the "Popular" badge.

Part numbers include DEKA 9A3585, DEKA 9A34R and BOSCH S6523B, among others listed above.

This table covers the clamps and brackets that secure the battery. Read more

2 Battery Hold Down parts for the 2015 Toyota Sienna come from 2 brands — SKP and VARIOUS MFR.

Part numbers include SKP SK7440403K and VARIOUS MFR TO2996101.

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

4 Battery Terminal parts are listed for the 2015 Toyota Sienna, from BECK/ARNLEY, DORMAN and STANDARD MOTOR PRODUCTS.

This group includes BECK/ARNLEY 2060001, BECK/ARNLEY 2060002 and DORMAN 926515 and the remaining parts above.

This table covers the Blind Spot Detection 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 Blind Spot Detection Sensor parts for the 2015 Toyota Sienna come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include STANDARD MOTOR PRODUCTS BSD17 and WELLS 5S16815.

This table covers the Cruise Control Distance 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 Cruise Control Distance Sensor parts are listed for the 2015 Toyota Sienna, from WELLS and DORMAN.

This group includes DORMAN 601934, WELLS 5S17181 and WELLS 5S17195.

This table covers the engine-control modules that run fuel, spark and emissions. Read more

4 Engine Control Module (ECM Computer) parts for the 2015 Toyota Sienna come from BSE.

This group includes BSE ECC23043M, BSE ECC23124M and BSE EM23043 and the remaining parts above.

This table covers the flasher units that blink the turn signals and hazards. Read more

2 Flasher parts are listed for the 2015 Toyota Sienna, from TRIDON / NOVITA and WELLS.

Part numbers include TRIDON / NOVITA LM449 and WELLS 1R2222.

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

27 Fuse parts are listed for the 2015 Toyota Sienna, from BUSSMANN and LITTELFUSE. LITTELFUSE MIN15 carries the "Popular" badge. They are grouped as 10 Amp, 140 Amp, 15 Amp, 20 Amp, 25 Amp, 30 Amp, 5 Amp, 60 Amp and 7.5 Amp, with 30 Amp the largest group at 6 parts from BUSSMANN and LITTELFUSE.

This table covers the Fusible links. Typical signs include a clunk over a driveway lip, or a rattle from the bar. Replace links in pairs; a seized stud often takes the bushing with it. Read more

2 Fusible Link parts for the 2015 Toyota Sienna come from LITTELFUSE.

In the 10 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE LMIN10.

The 7.5 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "7.5 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE MIN75 is listed in this group.

This group includes LITTELFUSE LMIN10 and LITTELFUSE MIN75.

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

FIAMM supplies the 11 Horn parts for the 2015 Toyota Sienna. FIAMM 7210223 carries the "Popular" badge.

In the Accessory Replacement grade, FIAMM supplies 6 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 5 options from FIAMM — built to original-equipment specification. FIAMM 7250522 is listed in this group.

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

3 Keyless Entry Remote parts for the 2015 Toyota Sienna come from DORMAN.

Part numbers include DORMAN 99136, DORMAN 99143 and DORMAN 99135.

This table covers the replacement shells for the key fob. Read more

5 Keyless Entry Remote Case parts for the 2015 Toyota Sienna come from DORMAN. The "Popular" part is DORMAN 13655.

This group includes DORMAN 13655, DORMAN 13654 and DORMAN 13653 and the remaining parts above.

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

9 Parking Aid Sensor parts for the 2015 Toyota Sienna come from 5 brands — STANDARD MOTOR PRODUCTS, VEMO, DORMAN and 2 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS PPS79.

Listed part numbers: STANDARD MOTOR PRODUCTS PPS79, VEMO V70720221 and DORMAN 684008, plus the other parts above.

This table covers the Side Object Sensor modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

This group shows a single part: DORMAN 601464.

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

11 Speed Sensor parts are listed for the 2015 Toyota Sienna, from DELPHI, STANDARD MOTOR PRODUCTS, WELLS and 5 other brands. ULTRA-POWER SC539 carries the "Popular" badge.

In the Economy grade, ULTRA-POWER, BECK/ARNLEY, GPD and 2 other brands supply 5 parts: the catalog's value-priced group. A representative part number is ULTRA-POWER SC539.

The Standard Replacement section: 6 options from DELPHI, STANDARD MOTOR PRODUCTS and WELLS. DELPHI SS12252 is listed in this group.

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

16 Starter Motor parts for the 2015 Toyota Sienna come from 10 brands — TERREPOWER, WAI GLOBAL, BOSCH and 7 other brands. The "Popular" part is TERREPOWER N17825.

The New section: 8 options from TERREPOWER, ULTRA-POWER, WAI GLOBAL and 5 other brands. TERREPOWER N17825 is listed in this group.

The Remanufactured section: 8 options from DENSO, ACDELCO, BOSCH and 5 other brands. DENSO 2800339 is listed in this group.

This table covers the Starter solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

This group shows a single part: WELLS 1M1617.