Clock Reset

[Eh2Zee]

I have an annoying little problem on my 2004 R1150RT. It should not bug me, but it does.

 

When I turn off the ignition, the clock resets to 00:00. Starts up fine, and the reset happens before I hit the starter. In fact, if I have set the time and go riding for a couple of hours it keeps perfect time. Then, when turn off the bike, it is reset again immediately upon turning on the ignition even if it's only 2 seconds after turning the ignition off.

 

Do these clocks have an embedded battery that is replaceable?

 

TIA

 

Stefan

[Peter Parts]

Lotta trouble since BMW started their Mayan clock factory.

 

On my 1999 S model, the clock and horn (but not horn relay) are on an always-hot fuse (keeps the horn current out of the ignition switch... keeps the clock energized... when the clock looks kaput, you know your horn isn't there for you).

 

That might be diagnostic. But really can't say about your model.

 

Ben

[Eh2Zee]

Thanks for the tip. The horn works - as does the clock when the ignition is on. When the ignition is off, no horn, and no clock.

 

But the clock resets when the ignition is turned off and on - even momentarily.

[dirtrider]

Afternoon Stefan

 

No battery in the clock

 

The clock keep alive is a direct from the battery power source (usually fuse #3).

 

Your clock resetting issue could be a problem with fuse #3, or something causing that circuit to go low at key off/on. Might even be a grounding issue but more than likely an issue with the keep alive circuit.

 

See if #3 fuse is OK & making good contact. If OK then use a voltmeter & monitor that fuse power at key off & key on to see if it is staying above 10 volts. If not then look for the issue in that circuit.

 

Could even be a bad (small) wire connection at the battery (+) post or even on the (-) side so check those.

 

[Eh2Zee]

Thanks for that tip, DR. I'll check it later today!

[Eh2Zee]

Thanks, DR. Fuse #3 is blown. My Owners Guide states that this should be a 4 Amp. Seems that the previous owner had a 15Amp fuse in it? There is more here than meets the eye, I think.

[dirtrider]

Afternoon Stefan

 

My manual shows that #3 fuse is supposed to be a 15 amp. That 4 amp is a mis-print for some reason.

 

 

Added: that #3 fuse also fuses the power outlets so a 4 amp definitely isn't enough for that circuit.

[dirtrider]

Afternoon Stefan

 

You might print this out & place it in your riders manual.

 

 

From BMW's R1150RT service manual published 07/2001:

 

Fuse assignments

(No. 1 on left, looking forwards)

1. Instrument cluster (telltale lights, revolution

counter), indicator damping, windscreen

adjuster ........................................................ 4 A

2. Parking light, tail light ................................... 4 A

3. Windscreen adjuster, power sockets 1 and 2,

FID, OE socket, radio ................................. 15 A

4. Horn.......................................................... 7.5 A

5. Motronic control unit, Motronic relay,

diagnosis connector................................... 10 A

6. Fuel-pump relay (injection valves,

cycle valves, oxygen sensor) ...................... 10 A

7. Heated handlebar grips................................ 4 A

8. Radio ........................................................... 4 A

9. Not used

10.Fog lamp relay............................................ 15 A

 

[Eh2Zee]

Many thanks, DR. Turned out that the fuse blows when I plugged the charger into the accessory socket (DAMHIK about how I verified what triggers the fuse blowing )

 

Anyway, the float-charger plug had an internal wire that was loose. The right wiggle produced the short.

 

I am fixing the plug. And now I know that the fuse is doing what it is supposed to do! All is good now.

 

Thanks again.

[dirtrider]

Afternoon Stefan

 

Wonderful news, it always gives you the warm fuzzies when you find a conclusive reason for a blown fuse.

 

[Eh2Zee]

Absolutely. Wouldn't want to be one of those that got up to take the battery out of the Smoke Detector because it woke me up in the middle of the night.

 

Thanks again for your help.

[PAS]

When my clock started to reset it was the fact that the battery was going south. Learned that here.

[dirtrider]

Morning PAS

 

Yours was probably re-setting during engine cranking (that is where a bad battery clock re-set shows up).

 

Stefan's problem was happening during a simple key on & off.

 

[Peter Parts]

Maybe it was resetting like all the clocks from the new BMW Mayan factory that reset every 1300 years.

 

B.

[PAS]

DR your correct. I was also experiencing poor cranking power!