Quote:
Originally Posted by Bob I
There are so many possible causes when you have ABS problems that it makes tracking it down a little difficult. When mine acted up I didn't want to give a dealer or my regular shop a blank check to fix it. I was afraid they might end up throwing in a bunch of expensive parts like the pump and control unit as they attempted to get it working.
There should be a way to jumper the pump to see if it does run but I don't know the procedure to do that. Let us know what the final fix is.
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Yesterday I tried replacing the removable 4-pin relay on the K40. That did not help.
Today, I unplugged and re-seated the connectors on the K40. I also removed the bottom cover and inspected the circuit board - no visible problems. There are some components on the other side of the board. It seems there is more to the K-40 than just the relay, fuses and sockets.
I replaced the 4-pin relay at the back of the driver side fuse box.
Have not given car a real test yet. Over the past month, the symptoms have been very repeatable.
- No problem with first start of the day.
- No problem if car is let sit for say 4 hours or more.
- If car is restarted soon after, for example, a 1/2 hr trip and 1/2hr stop, the ASR/ABS/BAS warning lights all come on. Usually this happens as car is started or just after. Never during trip. Except once when I simulated an emergency stop with ABS in action.
We will see what happens today!
OK - No improvement. Running out of things to try (: