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The OBD (On-Board Diagnostics) system in a 2001 Nissan Pathfinder is powered by the vehicle's battery and is controlled by the Engine Control Module (ECM). If the OBD port isn't lighting up your reader, it could be due to a blown fuse.
In your Pathfinder, the OBD fuse is located in the fuse box under the dashboard on the driver's side of the vehicle. The fuse you need to check is the 10A fuse labeled "ECM" or "ECU". You can consult your vehicle owner's manual or the fuse box cover for the exact location of the ECM fuse.
If the ECM fuse is intact, there may be a problem with the OBD system itself or the wiring connecting it to the ECM. In that case, it's best to have a qualified mechanic or technician diagnose the issue to prevent further damage to your vehicle.
Have you checked your fuses? Most vehicles have a fuse for the blower. It could be as simple as a blown fuse. If the fuse for the blower is not blown, there's a possibility that the actual motor could have gone out. Thanks.
Diagram? I don't understand your request. Are you replacing a drive axle or a driveshaft? One is easy, one is very difficult. Both are tough if you've never done one. Be careful.
have someone press washer switch and feel if pump is working if not the owners manual will have fuse location and breakdown of circuits it uses check that hope it helps you
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