156700-2790 (2-Pack) 12V 4-Pin 30A SPST Automotive Relay Compatible with Toyota Camry RAV4 Corolla Lexus ES350 Fixes Blower Motor AC B1478 B1445 Codes
Description
| Item model number | 156700-2790 |
| Current Rating | 30 Amps |
| Mounting Type | Plug In Mount |
| Connector Type | Plug-In |
| Item Weight | 1.13 ounces |
| Contact Type | Normally Open |
| Contact Material | Brass |
| Specification Met | OEM |
| Product Dimensions | 1.2 x 1 x 1.1 inches |
- 【CORE ELECTRICAL PARAMETERS】 156700-2790 automotive relay features a heavy-duty 12VDC 30A SPST (Normally Open) configuration with a precision 4-pin layout. Optimized for HVAC blowers and AC compressors, it maintains circuit integrity under high-current loads
- 【EXTENSIVE VEHICLE COMPATIBILITY】 Engineered for a direct fit and compatible with Toyota Camry (2010-2020), RAV4 (2013-2018), and Corolla (2014-2020). Also fits Lexus ES350 and RX350 models requiring the standard brown-housing relay replacement
- 【CRITICAL DIAGNOSTIC FIXES】 Specifically designed to resolve non-functional cabin airflow and erratic fan speeds. Effectively clears diagnostic trouble codes B1478 (Blower Motor Circuit) and B1445 (AC Control Power) caused by worn factory components
- 【HEAVY-DUTY BUILD QUALITY】 Constructed with silver alloy contacts for low resistance and stable power transfer. The high-temperature resistant housing is designed for reliable performance in engine bay environments ranging from -40°C to 125°C
- 【INSTALLATION ADVISORY】 Features a side-alignment tab for secure seating in factory fuse boxes. Please verify the orientation tab position in your vehicle's relay socket before installation to ensure a precise mechanical fit
Heavy-Duty 156700-2790 12V 4-Pin Relay for Automotive HVAC Systems
The 156700-2790 SPST Relay is a professional-grade replacement engineered to restore climate control functionality in your vehicle. If your cabin fan has stopped blowing or your AC system is throwing B1478 or B1445 error codes, this 4-pin magnetic relay provides a reliable solution to maintain circuit integrity.
Designed for high-current automotive applications, this relay manages blower motor and HVAC circuits with precision. The 30A load capacity supports heavy-duty operations while the silver alloy contacts minimize electrical noise and heat buildup. Compatible with a wide range of Toyota and Lexus sedans and SUVs, it serves as a direct cross-reference for standard factory equipment.
Installation Fitment Note: To ensure a successful repair, please visually inspect your existing relay. This 156700-2790 model features a specific orientation tab on the side of the brown housing. Comparing the pin layout and tab position with your old unit ensures a seamless plug-and-play experience in your fuse box.
Key Specifications:
Model: 156700-2790 / 056700-2790
Voltage: 12V DC
Terminal Count: 4-Pin SPST
Housing Color: Industrial Brown
Operating Temp: -40°C to 125°C
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