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Standard Ignition RY-228 HVAC Automatic Temperature Control (ATC) Relay
Overview of Standard Ignition HVAC Automatic Temperature Control Relay
The Standard Ignition RY-228 HVAC Automatic Temperature Control (ATC) Relay is designed to provide reliable relay functions for your vehicle's climate control system. This relay is compatible with select Chevrolet, Geo, and Isuzu models, ensuring proper operation of the HVAC system.
- Compatible with Chevrolet I-Mark, Geo Spectrum, Geo Impulse, Isuzu Pickup, and Isuzu Trooper
- 12-volt relay with 4 male blade terminals
- Square connector shape for secure fitment
- Includes relay only; mounting bracket not included
- Designed for HVAC Automatic Temperature Control (ATC) systems
Technical Details and Specifications
The RY-228 relay operates at 12 volts and features four male blade terminals arranged in a square connector shape, providing a secure and reliable electrical connection. This relay is not rated for continuous duty but is engineered specifically for HVAC Automatic Temperature Control applications. The relay's blade terminal type and quantity ensure compatibility with the original equipment wiring harnesses found in Chevrolet I-Mark, Geo Impulse, Geo Spectrum, Isuzu Pickup, and Isuzu Trooper models. Note that this product does not include a mounting bracket, so installation will require using the existing bracket or an alternative mounting solution.
Applications and Common Issues Addressed
- Restores proper function to HVAC automatic temperature control systems in Chevrolet I-Mark and Geo Spectrum vehicles
- Resolves intermittent or non-functioning HVAC relay issues in Geo Impulse and Isuzu Pickup models
- Addresses relay failure symptoms such as inconsistent climate control operation in Isuzu Trooper
- Helps maintain electrical circuit integrity within the HVAC system
Installation Notes and Tips
- Verify vehicle compatibility with Chevrolet I-Mark, Geo Impulse, Geo Spectrum, Isuzu Pickup, or Isuzu Trooper before installation
- Ensure the relay terminals align correctly with the vehicle’s wiring harness connector
- Use existing mounting bracket or secure relay in a suitable location as mounting bracket is not included
- Disconnect the battery before installation to prevent electrical shorts
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RY-228 HVAC Automatic Temperature Control Relay undergoes rigorous quality control to ensure reliable performance in compatible Chevrolet, Geo, and Isuzu vehicles. Warranty coverage details should be confirmed with the point of purchase or Standard Ignition documentation.
| Brand | Standard Ignition |
|---|---|
| Part Number | RY-228 |
| Connector Shape | Square |
| Contents | Relay |
| Continuous Duty | No |
| Functions | Relay |
| Mounting Bracket(s) Included | No |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Voltage | 12 |
This part fits 93 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1990 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1989 | Geo | Spectrum | N/A | ||||
| 1989 | Isuzu | I-Mark | N/A | 4 Blade Term. | |||
| 1989 | Isuzu | I-Mark | N/A | ||||
| 1989 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1988 | Chevrolet | Spectrum | N/A | ||||
| 1988 | Chevrolet | Spectrum | N/A | OE No. 94248989 | |||
| 1988 | Isuzu | I-Mark | N/A | 4 Blade Term. | |||
| 1988 | Isuzu | I-Mark | N/A | ||||
| 1988 | Isuzu | I-Mark | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1988 | Isuzu | Impulse | N/A | 4 Blade Term. | |||
| 1988 | Isuzu | Impulse | N/A | ||||
| 1988 | Isuzu | Impulse | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1988 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1988 | Isuzu | Pickup | N/A | ||||
| 1988 | Isuzu | Pickup | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1988 | Isuzu | Trooper | N/A | 4 Blade Term. | |||
| 1988 | Isuzu | Trooper | N/A | ||||
| 1988 | Isuzu | Trooper | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1988 | Isuzu | Trooper | N/A | Fits without skirt | |||
| 1987 | Chevrolet | Spectrum | N/A | ||||
| 1987 | Chevrolet | Spectrum | N/A | OE No. 94248989 | |||
| 1987 | Isuzu | I-Mark | N/A | 4 Blade Term. | |||
| 1987 | Isuzu | I-Mark | N/A | ||||
| 1987 | Isuzu | I-Mark | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1987 | Isuzu | Impulse | N/A | 4 Blade Term. | |||
| 1987 | Isuzu | Impulse | N/A | ||||
| 1987 | Isuzu | Impulse | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1987 | Isuzu | Impulse | 1.9L | L4 | N/A | ||
| 1987 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1987 | Isuzu | Pickup | GAS | N/A | |||
| 1987 | Isuzu | Pickup | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1987 | Isuzu | Trooper | N/A | 4 Blade Term. | |||
| 1987 | Isuzu | Trooper | N/A | ||||
| 1987 | Isuzu | Trooper | N/A | Fits without skirt | |||
| 1987 | Isuzu | Trooper | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1986 | Chevrolet | Spectrum | N/A | ||||
| 1986 | Chevrolet | Spectrum | N/A | OE No. 94248989 | |||
| 1986 | Isuzu | I-Mark | N/A | 4 Blade Term. | |||
| 1986 | Isuzu | I-Mark | N/A | ||||
| 1986 | Isuzu | I-Mark | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1986 | Isuzu | Impulse | N/A | 4 Blade Term. | |||
| 1986 | Isuzu | Impulse | N/A | ||||
| 1986 | Isuzu | Impulse | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1986 | Isuzu | Impulse | 1.9L | L4 | N/A | ||
| 1986 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1986 | Isuzu | Pickup | GAS | N/A | Fits vehicles equipped with California emissions. | ||
| 1986 | Isuzu | Pickup | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1986 | Isuzu | Trooper | N/A | 4 Blade Term. | |||
| 1986 | Isuzu | Trooper | N/A | ||||
| 1986 | Isuzu | Trooper | N/A | 4 Term. | |||
| 1986 | Isuzu | Trooper | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1985 | Chevrolet | Spectrum | N/A | ||||
| 1985 | Chevrolet | Spectrum | N/A | OE No. 94248989 | |||
| 1985 | Isuzu | I-Mark | N/A | 4 Blade Term. | |||
| 1985 | Isuzu | I-Mark | N/A | ||||
| 1985 | Isuzu | I-Mark | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1985 | Isuzu | Impulse | N/A | 4 Blade Term. | |||
| 1985 | Isuzu | Impulse | N/A | ||||
| 1985 | Isuzu | Impulse | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1985 | Isuzu | Impulse | 1.9L | L4 | N/A | ||
| 1985 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1985 | Isuzu | Pickup | GAS | N/A | Fits vehicles equipped with California emissions. | ||
| 1985 | Isuzu | Pickup | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1985 | Isuzu | Trooper | N/A | 4 Blade Term. | |||
| 1985 | Isuzu | Trooper | N/A | ||||
| 1985 | Isuzu | Trooper | N/A | 4 Term. | |||
| 1985 | Isuzu | Trooper | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1984 | Isuzu | I-Mark | N/A | 4 Blade Term. | |||
| 1984 | Isuzu | I-Mark | N/A | ||||
| 1984 | Isuzu | I-Mark | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1984 | Isuzu | Impulse | N/A | 4 Blade Term. | |||
| 1984 | Isuzu | Impulse | N/A | ||||
| 1984 | Isuzu | Impulse | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1984 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1984 | Isuzu | Pickup | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1984 | Isuzu | Trooper | N/A | 4 Blade Term. | |||
| 1984 | Isuzu | Trooper | N/A | 4 Term. | |||
| 1984 | Isuzu | Trooper | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1983 | Isuzu | I-Mark | N/A | 4 Blade Term. | |||
| 1983 | Isuzu | I-Mark | N/A | ||||
| 1983 | Isuzu | I-Mark | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1983 | Isuzu | Impulse | N/A | 4 Blade Term. | |||
| 1983 | Isuzu | Impulse | N/A | ||||
| 1983 | Isuzu | Impulse | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1983 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1983 | Isuzu | Pickup | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1982 | Isuzu | I-Mark | N/A | 4 Blade Term. | |||
| 1982 | Isuzu | I-Mark | N/A | ||||
| 1982 | Isuzu | I-Mark | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1982 | Isuzu | Pickup | N/A | 4 Blade Term. | |||
| 1982 | Isuzu | Pickup | N/A | OE No. 8-94248-989-0; 4 Blade Term. | |||
| 1981 | Isuzu | I-Mark | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.