2025 Lexus TX350 Electrical Switch & Relay Parts

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

2 Blower Motor Relay parts for the 2025 Lexus TX350 come from DENSO.

Listed part numbers: DENSO 5670004 and DENSO 5670003.

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 1S16748.

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

2 Daytime Running Light Relay parts for the 2025 Lexus TX350 come from DENSO.

Part numbers include DENSO 5670004 and DENSO 5670003.

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

2 Defroster Relay parts for the 2025 Lexus TX350 come from DENSO.

Listed part numbers: DENSO 5670004 and DENSO 5670003.

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 2025 Lexus TX350.

Listed part numbers: DENSO 5670004 and DENSO 5670003.

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

2 Fog / Driving Lamp Relay parts for the 2025 Lexus TX350 come from DENSO.

Part numbers include DENSO 5670004 and DENSO 5670003.

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

This group shows a single part: DENSO 5670004.

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

One part is listed for the 2025 Lexus TX350 — DENSO 5670004.

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

One part is listed for the 2025 Lexus TX350 — DENSO 5670004.

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

DENSO supplies both parts for the 2025 Lexus TX350.

This group includes DENSO 5670004 and DENSO 5670003.

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

DENSO supplies both parts for the 2025 Lexus TX350.

Listed part numbers: DENSO 5670004 and DENSO 5670003.

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 2025 Lexus TX350 — DENSO 5670003.