Honda CR-V (1997-2006) Relay Failures and Replacement Guide
Understanding the common relay problems in your first or second-generation CR-V can save you from a no-start or no-A/C headache.
- A 'crank, no-start' issue, especially when hot, is the number one sign of a bad PGM-FI main relay.
- If your A/C suddenly blows warm, the A/C compressor clutch relay is the first, cheapest, and easiest part to check.
- Relay replacement is a very simple DIY task that requires no special tools and can be done in minutes.
- For this generation CR-V, using a quality aftermarket relay is a cost-effective and reliable repair strategy.
Common Relay Problems in the 1997-2006 Honda CR-V
If you own a first or second-generation CR-V, you're likely to encounter a relay issue at some point. These parts are simple, but they don't last forever. The two most common failures are the Main Relay (PGM-FI) and the A/C Compressor Clutch Relay.
The PGM-FI Main Relay: A Classic Honda Issue
The main relay is notorious for failing on Hondas of this era. Over time, heat causes the solder joints inside the relay to crack. When this happens, the connection is lost, and the fuel pump and computer (ECU) lose power. This typically results in a car that cranks but won't start, especially when the vehicle is hot.
🎬 Watch: How to diagnose a Honda crank no start condition.The A/C Compressor Clutch Relay: The Simple A/C Fix
Another frequent problem is a failed A/C compressor clutch relay. If your CR-V's air conditioning suddenly starts blowing warm air, but the fans are still working, this relay is the most likely culprit. The relay fails to send power to engage the A/C compressor. It's a very common, but very easy and cheap, part to replace.
Choosing the Right Aftermarket Relay
When it comes to replacing a relay in your CR-V, you have two main choices: OEM (Original Equipment Manufacturer) from a Honda dealer or an aftermarket part. For a simple component like a relay, a quality aftermarket part is often a smart, budget-friendly choice. The original factory relays are known to have these common failure points, and some aftermarket replacements have improved designs. Brands like Standard Motor Products are generally considered reliable options by many Honda owners. Given the low cost, replacing a suspect relay with a new aftermarket part is excellent preventative maintenance.
Cost of Replacing a Honda CR-V Relay (1997-2006)
| Part Type | Estimated Cost |
|---|---|
| New OEM (Honda) | $58 - $140 |
| New Aftermarket | $18 - $41 |
| Shop Labor | $50 - $100 |
Frequently Asked Questions
Where is the main relay located on my CR-V?
For the 1997-2001 CR-V, the PGM-FI main relay is typically found under the dashboard on the driver's side, to the left of the steering column. For the 2002-2006 CR-V, it is often located behind the glove box. You may need to remove a lower dash panel or the glove box to access it.
Where is the A/C relay located?
The A/C compressor clutch relay is almost always in the under-hood fuse box, near the battery. The lid of the fuse box usually has a diagram showing which relay is for the A/C clutch (often marked with a snowflake symbol).
🎬 See this walkthrough for troubleshooting CR-V air conditioning relays.Can I replace a relay myself?
Yes, replacing most relays is a very simple DIY job. They are designed to be unplugged from a socket and a new one plugged in, usually with no tools required. The main relay under the dash can be a bit harder to reach, but it is still a straightforward plug-and-play replacement.
Is an aftermarket relay a good choice?
For common relays, yes. Aftermarket quality is generally sufficient and can save you a significant amount of money compared to OEM parts. Since the original parts are known to fail, a new aftermarket part is a reliable repair. Some forum users have had good luck with brands like Standard Motor Products (Intermotor).
My turn signals stopped working. Is that a relay?
Yes, the turn signals and hazard lights are controlled by a single "flasher relay". If both your turn signals and hazards stop working at the same time, the flasher relay is the most likely cause. This is another simple, plug-in part located in the fuse box under the driver's side dash.
Helpful Videos
Technical Specifications
OEM Part Numbers: 39400-S10-003 39794-SDA-A05 39794-S04-014
Most relays for this vehicle are 4-pin or 5-pin micro ISO relays. The PGM-FI Main Relay is a larger, specific unit. Common brands for OEM relays are Mitsuba and Denso.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Honda CR-V: