Still stump about previously running fan all the time and not running now- I cut the connection at the fan as I was working on other issues until I get to it now.
Here's what I confirmed today for the no blower sympton. Went through these 2 sequences with answers in CAP below referenced from this thread.
http://www.914world.com/bbs2/lofiversion/i...hp?t247768.html1. Did you CLEAN the ground connection at the lever? That's worth doing so you know you do have a good ground (if you did not when you were in there).YES, SAND AND DE-OXIT.
2. With ignition on and heater lever in the up position (all the way), use a voltmeter or test light and see if you have power at the green lead on the blower motor (ground the test light/voltmeter to the battery negative post).NO 12V. If you do, then I believe the ground lever, the relay board, the relay, and the other connections are good. RELAY GOOD, LEVER GOOD. Check the actual blower motor ground brown wire to its grounding point (I'm not sure if mine is stock or not -- it's been grounded to a dedicated ground point off the block -- it's effective, but it doesn't look original to me). CONTINUITY FROM FAN TO BATTERY.
3. Most likely, you do not. So your issue is probably somewhere in one of the connections on the relay board or back at the heater lever. Without the ignition on, test continuity from relay pin (the hole) 87 to connector pin 11 on the 14 pin connector at the front of the relay board-NO CONTINUITY. (if I'm reading the diagram correctly). If you have any doubts about the continuity clean the connection points at the relay, at the 14 pin connector, AND at the 12 pin connector on the rear right side of the board - pins 11 and 10 are the operative ones here I think. CLEAN AND DE-OXIT.
4. Are you actually getting a good ground to the relay? With ignition on and the heater lever in the up position, do you have 12v at pin 87 of the relay?YES, RELAY CLICKING. If not, the issue is on the relay board to the 14 pin connector or from there to the grounding point at the lever.
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1. Bad ground at lever or broken wire (the green/white one) to the relay board. NO, CHECKED CONTINUITY, RELAY CLICK WHEN MOVE RED LEVER OR PLUG IN RELAY.
2. Bad/dirty connections on the relay board (at the 14 pin connector or the 12 pin connector). NO, CLEAN AND DE-OXIT.
3. Broken fuse or bad fuse connection (as Spoke pointed out) on the relay board. NO, CHECKED CONTINUITY AND POWER.
4. Bad relay 55 or bad relay connections (e.g., pins 30, 86, 87 etc.).NO, SWAPPED RELAY, CHECKED CONTINUITY.
5. Bad relay board (traces bad) HOW?
6. Broken or bad green wire from relay board to fan. CONTINUITY TO PIN 85 ON RELAY BOARD. GREEN WIRE 3 PLUG CONTINUITY TO FAN GREEN WIRE .
DID I MISS SOMETHING? TIA.