So a few weeks ago, I got in the truck and the battery light was on. My blower motor also suddenly would not work on any speed.
A week later, my rear defrost dies, and my speedo, odometer, & trip odometer stopped working. I haven't driven the truck enough to tell if the fuel/temp gauges are affected or not.
I've replaced the blower motor with a j/y one. No worky. I have power on the + terminal of the blower motor plug, but don't have continuity from the - terminal and ground. Then again, my multimeter doesn't always register continuity when the electrodes are touching each other...
Looking at the FSM, all of these things share the same grounds, namely the two in the cab, one in each foot well. I have removed, cleaned, and replaced both of them. The wiring looked fine. I also removed the passenger side one in the engine compartment that is used by the blower motor relay for a cleaning. I looked for the ground near the ecu, but wasn't able to find it?
Over the past few weeks it would not start after a few days of sitting. Always read over 14v when running, but the battery would rest around 12.1V. A fresh charge always started her up. Today I replaced the battery with a j/y one (So far is holding a charge better than my previous battery.), and swapped the alternator for a remaned one from a 93 Maxima SOHC. Now shows 14.4ish when running, and resting voltage is around 12.4. I also ran a new 4ga power cable from the alt positive to the battery positive.
I still have a battery light on.
Does anyone have any ideas? Is there a common point where all these problems intersect that I am missing? All of the fuses for the affected systems look to be in working order...