2009 Nissan Murano AC Relay: Location Guide

AC Relay Location
The AC relay in a 2009 Nissan Murano is located in the Intelligent Power Distribution Module (IPDM), also known as the Power Distribution Module Engine Room (IPDM E/R). This module is situated under the hood, on the right side of the engine compartment, behind the headlight.
Unlike many other vehicles, the AC relay in the 2009 Nissan Murano is not individually serviceable. It is integrated into the IPDM, which means if the relay fails, the entire IPDM unit typically needs to be replaced.
Accessing the IPDM
To access the IPDM where the AC relay is located:
1. Open the hood of your Nissan Murano.
2. Locate the main fuse box on the driver's side of the engine compartment.
3. You'll see a cover over the fuse box. This cover has two black tabs, one on each side.
4. Press these tabs and lift the cover to reveal the fuses and relays inside.
On the underside of the cover, you'll find a diagram showing the layout of fuses and relays. However, remember that the AC relay itself is not accessible or replaceable individually.
Troubleshooting AC Issues
If you're experiencing problems with your AC system, such as the compressor not engaging, it's important to note that the issue may not necessarily be the relay. Here are some steps you can take:
1. Check the fuses: Ensure that fuses related to the AC system are intact. The main fuse box under the hood and a secondary fuse box in the passenger compartment (under the dashboard) contain relevant fuses.
2. Verify refrigerant levels: Low refrigerant can prevent the compressor from engaging.
3. Inspect the compressor clutch: A faulty clutch can prevent the compressor from activating even if the relay is functioning.
4. Test for voltage at the compressor: With the engine running and AC on, check for voltage at the compressor. If voltage is present, the electrical system (including the relay) is likely working, and the issue may be with the compressor itself.
5. Perform an IPDM auto active test: This can help determine if the IPDM is functioning correctly.
When to Seek Professional Help
Given the integrated nature of the AC relay in the 2009 Nissan Murano, diagnosing and repairing issues related to the AC system often requires specialized knowledge and tools. If basic troubleshooting doesn't resolve the issue, it's advisable to consult a certified Nissan mechanic or an AC specialist.
Remember, attempting to disassemble or repair the IPDM yourself can lead to further complications and may void any existing warranties.
FAQs About 2009 Nissan Murano AC Relay
- Can I replace just the AC relay in my 2009 Nissan Murano?
No, the AC relay is integrated into the IPDM and is not individually replaceable. If the relay fails, the entire IPDM typically needs to be replaced. - Where is the secondary fuse box located in a 2009 Nissan Murano?
The secondary fuse box is located in the passenger compartment, under the dashboard on the driver's side. - How can I tell if my AC compressor is receiving power?
You can check for voltage at the compressor with the engine running and AC on. If voltage is present, the electrical system, including the relay, is likely functioning correctly.
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