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Standard Ignition RY-1738 HVAC Automatic Temperature Control (ATC) Relay
| Brand | Standard Ignition RY-1738 |
|---|---|
| Amperage Rating | 20 A |
| Connector Gender | Male |
| Connector Shape | Rectangular |
| Functions | Relay |
| Mounting Bracket(s) Included | No |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Voltage | 12 |
| Fits | Fiat · 7 vehicles |
ATC relay. Controls HVAC temperature functions with reliable 12-volt operation.
Blade terminals. Four male blade terminals and a rectangular connector simplify installation.
20 amp rating. Built to handle demanding relay circuits with confidence.
Cross-references Standard Ignition RY-1738, 16079 and 68125507AA for the same application. See all 5.
HVAC Relay for Fiat 500 Climate Control
Standard Ignition RY-1738 is an HVAC automatic temperature control relay built for 12-volt systems with a 20 amp amperage rating. It uses a 4-terminal, male blade, rectangular connector layout for direct relay replacement in the climate control circuit.
Compatible With 2012-2018 Fiat 500 HVAC relay applications, this part supports the electrical switching function used by the automatic temperature control system. Standard Ignition RY-1738 is a practical replacement choice when diagnosing HVAC relay-related faults on Fiat 500 models.
Key Features
- Part number: RY-1738
- HVAC automatic temperature control relay
- 20 A amperage rating for 12-volt operation
- 4 male blade terminals
- 4-pin rectangular connector design
- No mounting bracket included
- Direct relay function for HVAC control circuits
Product Details
This Standard Ignition relay is designed for HVAC automatic temperature control use and matches the electrical and connector specifications needed for the application. The male connector and terminal layout help ensure proper interface with the vehicle harness, while the 20 amp rating supports relay switching demands in the climate control system. For buyers searching for a Fiat 500 HVAC relay, RY-1738 provides a focused replacement option for 2012-2018 Fiat 500 models.
This part cross-references 16079 and 68125507AA for the same application.
Common Issues This Relay May Address
- HVAC system not responding to temperature control commands
- Intermittent blower or climate control relay operation
- Relay clicking without consistent circuit engagement
- Loss of automatic temperature control function
- Electrical switching faults in the HVAC control circuit
Installation Notes and Tips
Verify the relay connector style, terminal count, and amperage rating before installation. Compare the removed relay to Standard Ignition RY-1738 to confirm the 4-pin rectangular male configuration matches the vehicle harness. Check the HVAC circuit for corrosion, heat damage, or loose terminals before installing the replacement relay.
Quality Assurance
Standard Ignition is a recognized aftermarket brand for electrical and ignition components. RY-1738 is built to meet the listed electrical and connector specifications for the stated Fiat 500 applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2018 | Fiat | 500 | N/A | — |
| 2017 | Fiat | 500 | N/A | — |
| 2016 | Fiat | 500 | N/A | — |
| 2015 | Fiat | 500 | N/A | — |
| 2014 | Fiat | 500 | N/A | — |
| 2013 | Fiat | 500 | N/A | — |
| 2012 | Fiat | 500 | N/A | — |
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