2021 Toyota Avalon Electrical Switch & Relay Parts

This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

2 A/C Refrigerant Pressure Switch parts for the 2021 Toyota Avalon come from 2 brands — GPD and UAC. Every part fits all 3 engine options (2.5L L4, 2.5L L4 ELECTRIC/GAS and 3.5L V6).

Listed part numbers: GPD 1713402 and UAC SW11605C.

This table covers the relays that control the A/C System circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: UAC RE8402C.

This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2021 Toyota Avalon — STANDARD MOTOR PRODUCTS RY707.

This table covers the relays that control the Auxiliary Heater circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2021 Toyota Avalon — DENSO 5670005.

This table covers the relays that control the Blower Motor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

4 Blower Motor Relay parts for the 2021 Toyota Avalon come from 2 brands — DENSO and STANDARD MOTOR PRODUCTS. Every part fits all 3 engine options (2.5L L4, 2.5L L4 ELECTRIC/GAS and 3.5L V6).

Part numbers include DENSO 5670005, DENSO 5670003 and DENSO 5670004, among others listed above.

This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

This group shows a single part: WELLS 1S16745.

This table covers the relays that control the Cruise Control circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: DENSO 5670002.

This table covers the relays that control the Daytime Running Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

4 Daytime Running Light Relay parts for the 2021 Toyota Avalon come from DENSO. 3 parts fit every engine; the other 1 is engine-specific.

Part numbers include DENSO 5670005, DENSO 5670003 and DENSO 5670004, among others listed above.

This table covers the relays that control the Defroster circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

5 Defroster Relay parts for the 2021 Toyota Avalon come from 2 brands — DENSO and STANDARD MOTOR PRODUCTS. The "Popular" part is DENSO 5670002. 4 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: DENSO 5670002, DENSO 5670005 and DENSO 5670003, plus the other parts above.

This table covers the relays that control the Dimmer circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: DENSO 5670005.

This table covers the dimmer switches that select headlamp high and low beam. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

One part is listed for the 2021 Toyota Avalon — WELLS 1S18189.

This table covers the Door Jamb switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

2 Door Jamb Switch parts are listed for the 2021 Toyota Avalon, from DORMAN and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2021 Avalon.

Listed part numbers: DORMAN 920719 and STANDARD MOTOR PRODUCTS AW1046.

This table covers the relays that control the Door Lock circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2021 Toyota Avalon — STANDARD MOTOR PRODUCTS RY707.

This table covers the relays that control the Driving Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Toyota Avalon. All of them fit every engine offered in the 2021 Avalon.

This group includes STANDARD MOTOR PRODUCTS RY345T and STANDARD MOTOR PRODUCTS RY345.

This table covers the relays that control the Engine Control Module circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

DENSO supplies both parts for the 2021 Toyota Avalon. All of them fit every engine offered in the 2021 Avalon.

This group includes DENSO 5670003 and DENSO 5670004.

This table covers the relays that control the Fog / Driving Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

4 Fog / Driving Lamp Relay parts for the 2021 Toyota Avalon come from 2 brands — DENSO and STANDARD MOTOR PRODUCTS. Every part fits all 3 engine options (2.5L L4, 2.5L L4 ELECTRIC/GAS and 3.5L V6).

Part numbers include DENSO 5670003, DENSO 5670004 and STANDARD MOTOR PRODUCTS RY348T, among others listed above.

This table covers the relays that control the Fuel Pump / Circuit Opening circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

4 Fuel Pump / Circuit Opening Relay parts for the 2021 Toyota Avalon come from 2 brands — DENSO and STANDARD MOTOR PRODUCTS. 3 parts fit every engine; the other 1 is engine-specific.

This group includes DENSO 5670004, DENSO 5670002 and STANDARD MOTOR PRODUCTS RY345T and the remaining parts above.

This table covers the relays that control the Headlamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: DENSO 5670003.

This table covers the relays that control the Horn circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

2 Horn Relay parts are listed for the 2021 Toyota Avalon, from DENSO and WELLS. All of them fit every engine offered in the 2021 Avalon.

Part numbers include DENSO 5670004 and WELLS 1R1696.

This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

WELLS supplies both parts for the 2021 Toyota Avalon.

Listed part numbers: WELLS 1S17842 and WELLS 1S17843.

This table covers the Neutral Safety Switch / Range 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

This group shows a single part: VEMO V70730066.

This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch. Read more

14 Oil Pressure Sender / Switch parts for the 2021 Toyota Avalon come from 9 brands — STANDARD MOTOR PRODUCTS, WELLS, HOLSTEIN and 6 other brands. The "Popular" part is BECK/ARNLEY 2011649.

The Economy section lists 4 options from HOLSTEIN, STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and 1 other brand — the catalog's value-priced group. HOLSTEIN 2OPS0003 is listed in this group.

In the Standard Replacement grade, BECK/ARNLEY, HELLA, ACDELCO and 3 other brands supply 6 parts: built to original-equipment specification. A representative part number is BECK/ARNLEY 2011649.

4 further parts sit outside the graded sections, with the same engine-level match.

This table covers the relays that control the Power Steering circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: DENSO 5670003.

This table covers the relays that control the Power Window circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

2 Power Window Relay parts are listed for the 2021 Toyota Avalon, from DENSO and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2021 Avalon.

Part numbers include DENSO 5670004 and STANDARD MOTOR PRODUCTS RY707.

This table covers the switches that command each window motor. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

5 Power Window Switch parts for the 2021 Toyota Avalon come from 4 brands — DORMAN, VEMO, WELLS and 1 other brand. The "Popular" part is WELLS 1S13450. Every part fits all 3 engine options (2.5L L4, 2.5L L4 ELECTRIC/GAS and 3.5L V6).

The Economy section: 3 options from DORMAN and VEMO. DORMAN 920816 is listed in this group.

Standard Replacement: 2 parts, from WELLS and STANDARD MOTOR PRODUCTS. A representative part number is WELLS 1S13450.

Part numbers include WELLS 1S13450, DORMAN 920816 and DORMAN 920802, among others listed above.

This table covers the relays that control the Radiator Fan circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

5 Radiator Fan Relay parts are listed for the 2021 Toyota Avalon, from DENSO and STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS RY345 carries the "Popular" badge. 4 parts fit every engine; the other 1 is engine-specific.

This group includes STANDARD MOTOR PRODUCTS RY345, DENSO 5670003 and DENSO 5670004 and the remaining parts above.

This table covers the relays that control the Seat Heater circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: DENSO 5670004.

This table covers the relays that control the Starter Motor Control circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

4 Starter Motor Control Relay parts are listed for the 2021 Toyota Avalon, from DENSO and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2021 Avalon.

This group includes DENSO 5670003, DENSO 5670004 and STANDARD MOTOR PRODUCTS RY348T and the remaining parts above.

This table covers the relays that control the Tail Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

This group shows a single part: DENSO 5670004.

This table covers the relays that control the Turn Signal circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is. Read more

One part is listed for the 2021 Toyota Avalon — DENSO 5670003.

This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too. Read more

This group shows a single part: WELLS 1S18189.