My '97 XK8, which I bought yesterday, was suffering an intermittent failure which the dealer mechanic said was the left front speed sensor. This has happened twice since I bought it.
I removed both front sensors and checked resistance. Left is 1154 ohms, right is 1165. I then checked the connecting wires and they are good even when flexed.
After a hard reset the messages were again displayed as soon as the ignition was turned on. I also checked battery and ground connections. Cruise control works.
Should I conclude the problem is in the module or is there further testing I can perform.

 

A hard reset will not clear the code that was set you will need to get the code reset properly. I would check your battery and if it is low recharge and see what takes place.

 

if you want absolute certainty, you'll need the ABS code read from the dealer or soemone with AutoEnginuity. If you get a code for the 'hydraulic pump', its the module. From what you stated (message appears on startup) it is definitely leaning that way.

 

Thanks Matt, my AE software is already on the way. This my first XK8, but in a few years I plan on moving up to a '05 or '06. This car at least has a little more legroom than my Z3, and once I extend the seat travel I should be very comfortable.
Without the support of the forum members I probably would not have bought this car.
Ron

 

If it comes to it, the module is an easy and quick fix. I sent mine out to Module Masters in Idaho and the fix cleared up my immediate problem plus a couple of other seemingly unrelated electrical gremlins.

 

If you have a digital voltmeter, while you're waiting for the AE software there's one piece of data that would be worth getting, IMO.

Let the car sit overnight and then measure the battery voltage, before the 1st start of the day. This so-called rest voltage can give a pretty good indication of the battery's health. May or may not have something to do with the ABS light (a weak battery can be a cause) but good to know anyway.

 

I charged the battery yesterday and it was 12.85 this afternoon, but I intend to have it load tested this weekend. It's only six mo. old, but some off brand whose name I can't recall.