TOYOTA 85921-20100 Sun Roof Control Module Relay
fits model: Celica, Avalon. make: Toyota. year: 1994–1999.
( Manufacturer Part Number: 85921-20100 ), ( Part Type: Control Sun Module ), ( Features: Oem Original Equipment, Exact Fit Quality ), ( Country Of Origin: Japan ), ( Fitment Type: Direct Replacement ), ( Vintage Part: No )
Review TOYOTA 85921 2010 New Oem Sun Roof Control Module Relay fits CELICA AVALON 1994–1999
The **Toyota 85921-20100 Sunroof Control Module Relay** is a critical electrical component designed exclusively for **1994 through 1999 Toyota Celica and Avalon models**, ensuring seamless operation of the sunroof mechanism while maintaining the integrity of the vehicle s electrical system. This high-quality relay serves as the electrical switch that activates the sunroof motor, allowing for smooth opening, closing, and locking functions when engaged via the interior control switch. Crafted with precision engineering, the relay is built to withstand the demands of frequent use, providing reliable performance even under varying environmental conditions, from extreme heat to cold climates. Its robust construction features a durable housing that protects internal components from dust, moisture, and electrical interference, while the internal contacts are designed to minimize wear and ensure consistent conductivity over thousands of activations. This relay is a direct-fit replacement, compatible with the original equipment specifications of the vehicle s sunroof system, eliminating the need for modifications or additional wiring adjustments. Whether replacing a faulty relay that has caused intermittent sunroof operation or upgrading for enhanced durability, this component guarantees smooth, responsive sunroof functionality, contributing to both convenience and comfort for the driver and passengers. Its compatibility with the **1994-1999 Celica and Avalon** ensures a perfect match for the vehicle s electrical architecture, making it an essential part of maintaining the integrity of the sunroof system.
### Pros and Cons of Buying a Toyota 85921-20100 Sunroof Control Module Relay (for 1994 1999 Celica/Avalon)
#### **Pros:**1. **Direct Fitment** This part is specifically designed for your vehicle s model year (1994 1999 Celica/Avalon), ensuring compatibility without modifications.
2. **Reliability** Toyota parts are generally built to high standards, reducing the risk of premature failure compared to aftermarket knockoffs.
3. **Warranty Coverage** If purchased from an authorized dealer or reputable seller, it may come with a warranty, offering protection against defects.
4. **Prevents Further Damage** A faulty sunroof control module can cause intermittent sunroof operation, water leaks, or electrical issues. Replacing it early can prevent more costly repairs.
5. **Ease of Installation** As a direct replacement, it should fit seamlessly into your existing system, requiring minimal adjustments.
6. **Improved Functionality** A new module ensures smooth sunroof operation, eliminating jerky movements or complete failure.
#### **Cons:**1. **Cost** Authentic Toyota parts can be expensive, especially if purchased from an official dealer. Prices may exceed $100, depending on availability.
2. **Limited Availability** Older Toyota parts may be harder to find, particularly if the seller is not well-stocked. You might need to order from a specialty parts supplier, which could extend wait times.
3. **Potential Counterfeit Risk** If buying from an unverified seller (e.g., eBay, Craigslist, or unlicensed online marketplaces), there s a chance of receiving a fake or low-quality part.
4. **Labor Dependency** While the part itself is straightforward, installation may require electrical knowledge or access to diagnostic tools if the issue stems from wiring or other components.
5. **Alternative Solutions** In some cases, reprogramming or recalibrating the existing module (if still functional) might be cheaper than replacement, though this depends on the severity of the problem.
6. **Resale Value Impact** If you plan to sell the vehicle later, a replaced sunroof module may not significantly affect its value, but a non-functional sunroof could deter buyers.
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### **Conclusion**
Buying the **Toyota 85921-20100 sunroof control module relay** is a practical solution if your sunroof is malfunctioning due to a failed module. The part offers reliability, direct fitment, and peace of mind, but it comes with higher costs and potential availability challenges. If the module is the sole issue and you have access to a reliable source, replacement is justified to restore proper sunroof function. However, if budget is a concern, exploring alternative fixes (e.g., checking wiring, testing the motor, or consulting a mechanic for diagnostics) may be worth considering before committing to a full replacement.
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### **Recommendation**
1. **Verify the Issue** Before purchasing, confirm that the sunroof control module is indeed the problem. Test the sunroof motor, wiring, and switches to rule out other failures.
2. **Buy from a Trusted Source** Purchase from an **authorized Toyota dealer, RockAuto, or a reputable online retailer** (e.g., Amazon, eBay with seller feedback) to avoid counterfeit parts.
3. **Compare Prices** Check prices across multiple sellers to ensure you re getting a fair deal. Sometimes, third-party sellers offer competitive pricing.
4. **Consider DIY Installation** If you re comfortable with basic automotive repairs, replacing the module yourself can save labor costs. Follow Toyota s service manual for guidance.
5. **Explore Alternatives** If the part is prohibitively expensive, ask a mechanic about **reprogramming the existing module** or checking for **corroded connectors** that may be causing intermittent issues.
6. **Document the Repair** If you sell the vehicle later, note the replacement in the service records to avoid potential disputes over pre-existing conditions.
**Final Verdict:** If the sunroof module is confirmed faulty and you have a reliable source for the part, replacing it is the best long-term solution. However, weigh the cost against the severity of the problem and explore cheaper diagnostics first.
Details:
Please match part number. The part is in good working condition, with no issues. Compatibility. This item was previously used and may show some signs of imperfections such as surface scratches, slight fading, dirt/stains, scuffs, dent/dings, normal wear tear.
Proof/receipt of work is required. Engines/Transmissions come with a 30-day money-back warranty. 9899 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 20. However, if there is an issue with the part purchase, please get in touch us before leaving a review.
Exact part number match is the only guarantee of fitment. DONOR: 1994 - 1999 Toyota Celica. This item is in good and full working condition. Up for sale is a sunroof motor control relay 1994 - 1999 Toyota Celica.
part #: 8592120100 prices
- $19.99-$49.99
specifications sunroofconverti:
- for models: Celica, Avalon
- for makes: Toyota
- for years: 1994-1999
- mpn: 85921-20100
- part type: Control Sun Module
- features: Oem Original Equipment, Exact Fit Quality
- country of origin: Japan
- fitment type: Direct Replacement
- vintage part: No
seller sunroofconverti:
- city: Manchester, Tennessee
- rating: 99.7%
- # reviews: 402
shipping sunroofconverti:
- transit: 5-12 Days
- class: Standard
- carrier: USPS
- service: USPS Ground Advantage
- cost: $4.99
- type: Fixed
payments sunroofconverti:
- credit card: Diners-club
- other
- wallet: Google-pay
returns sunroofconverti:
- time: 30 Days
- policy: Returns Accepted
- paid by: Buyer
offer sunroofconverti:
- availability: In Stock
- quantity: 1
- options: Ship-to-home
- sold: 0
- started: April 10, 2026
general sunroofconverti:
- condition: Used
- Exterior Parts Accessories > Roofs, Tops Sunroofs > Sunroofs Parts
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