The blower motor relay in a 2015 Dodge Dart is typically in the engine bay’s under-hood fuse/relay box (Power Distribution Center) on the driver’s side, and some configurations place the relay inside the interior fuse box or in the Integrated Power Module (IPM). This article explains the common locations and how to identify the correct relay.
The Dart’s HVAC blower is controlled by a high-current relay that is energized when the climate control selects a blower speed. Exact placement can vary by trim and production date, so checking the diagram on the fuse box lid or the service manual is recommended if you don’t see the relay where you expect it.
Common locations for the blower motor relay
In most 2015 Dodges Dart, the blower relay is found in one of a few main places. The following sections describe each location and how to identify the correct relay.
Under-hood Power Distribution Center (PDC)
This is the most common location for the blower relay on many Dart models. The PDC is a sizable black plastic box mounted in the engine bay on the driver’s side near the fender or battery. Open the cover and refer to the diagram to locate the relay labeled BLOWER or BLOWER RELAY.
- Look for a relay marked BLOWER or BLOWER RELAY inside the PDC.
- It’s typically a standard 4- or 5-pin relay with a multi-pin connector.
- To test, swap in a known-good relay of the same type and see if the blower runs on any speed setting.
If you find the relay in the PDC, note the label on the underside of the cover to confirm its function and position in the box layout.
Interior fuse box behind the glove box (dash area)
Some Dart configurations relocate the blower relay to an interior fuse box behind the glove box or within the dash harness. If you can’t find the blower relay in the engine bay, inspect the interior fuse box using the diagram on the box cover or in the owner’s manual.
- Remove the glove box or access panel as directed by the owner’s manual to reach the interior fuse box.
- Identify the relay labeled BLOWER or HVAC blower relay on the fuse map.
- Check for a loose connector or a blown fuse that could affect blower operation.
Interior locations are less common on later Dart models, but some trims and production runs used this setup to centralize HVAC relays inside the vehicle.
Integrated Power Module (IPM) location
On certain trims, the blower relay is integrated into the Integrated Power Module (IPM) in the engine bay near the battery. The IPM contains several high-current relays and fuses; the blower relay will be labeled in the IPM diagram.
- Open the IPM and locate the relay labeled BLOWER or HVAC blower relay.
- If the IPM is the source, a fault here can affect multiple high-current circuits, not just the blower.
Because the IPM consolidates many relays, consult the service manual for the exact pinout and replacement procedure if you suspect an IPM-related issue.
Troubleshooting and replacement tips
If the blower isn’t operating at all speeds, identifying the blower relay is only one step. Use the following guidelines to diagnose and address common problems.
Common checks before replacing parts:
- Verify power at the blower motor connector when the HVAC is commanded to run. If power is present at the blower but the motor doesn’t run, the blower motor or its resistor may be faulty.
- Check the relay itself: resistance between the coil terminals should be within spec, and the contact side should switch power when the control is active.
- Inspect the fuse(s) relevant to the HVAC blower in the same block as the relay. A blown fuse will prevent the relay from energizing the blower.
- If you swap in a known-good relay and the blower operates at some speeds but not others, the issue may lie with the blower motor resistor pack or the climate control head rather than the relay.
If you are not comfortable working with high-current electrical components, consult a qualified technician for a proper diagnosis and replacement.
Summary
For a 2015 Dodge Dart, the blower motor relay is most often found in the under-hood Power Distribution Center on the driver’s side of the engine bay, labeled BLOWER or BLOWER RELAY. In some configurations, it may reside in an interior fuse box behind the glove box or within the Integrated Power Module. Always check the diagram on the relevant cover and, if in doubt, reference the owner’s manual or repair guide for your exact trim and production date. If you’re uncomfortable performing electrical diagnostics, have a professional inspect the system.