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Old 10-01-2016, 10:08 AM   #1
BKMrSteel
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Cruise control not working 99/00

The cruise control on my 1999 e46 has never worked. I need your help pinpointing the problem. I'll start with a code from the peak tool saying my clutch switch is bad.

I've checked the clutch switch, and it looks like a mechanical one on top the pedal. The magnetic one came with my new master, but my car doesn't seem to have wiring for it.

The BMW shop said they didn't think my car would start if the mechanical switch would start. I have to push the clutch in to start the car

If the codes are cleared, cruise control will light up a few times. It won't work, but the light comes on and off. Then the car seems to know something is wrong and the light won't come on again.

No codes or symptoms for MAF

No vac leaks

No other codes. The CEL was off before modifying the exhaust.
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Old 10-02-2016, 10:01 AM   #2
markusmarkus
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If the MAF is having issues the cruise control enabled light in the gauge cluster won't work. It sounds like an intermittent problem. I'd check the connector at the MAF to make sure the pins are in good shape.
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Old 10-02-2016, 10:38 AM   #3
BKMrSteel
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Originally Posted by markusmarkus View Post
If the MAF is having issues the cruise control enabled light in the gauge cluster won't work. It sounds like an intermittent problem. I'd check the connector at the MAF to make sure the pins are in good shape.

The pins and connection for the MAF are good, and the MAF is working as far as I can tell. No code, part looks good, and engine runs perfectly.
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Old 10-03-2016, 08:16 AM   #4
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Great. The next step is to tell us what the codes are. If you're using the Peake tool, tell us the actual description from the Peake manual.
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Old 10-03-2016, 08:28 PM   #5
BKMrSteel
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Originally Posted by markusmarkus View Post
Great. The next step is to tell us what the codes are. If you're using the Peake tool, tell us the actual description from the Peake manual.

I don't have access to the tool any longer. The code was for faulty clutch switch.
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Old 10-04-2016, 08:51 AM   #6
markusmarkus
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Cruise control not working 99/00

Ok. When you visually checked the clutch switch did it look like item #5 in http://www.realoem.com/bmw/enUS/show...diagId=61_1062 ?

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Old 10-04-2016, 09:31 AM   #7
BKMrSteel
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Part# 12

Would the car still start if this was bad?

http://www.realoem.com/bmw/enUS/part...&q=61318381612
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Old 10-04-2016, 05:30 PM   #8
iowna330xi
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I don't think it will start, but you should also check your brake light switch. Mine soft failed meaning that the brake lights worked but the cruise control was intermittent
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Old 10-05-2016, 08:52 AM   #9
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It dawned on me last night I was writing about the wrong switch!!! Both the brake and the clutch pedals have a switch that disengages the cruise control when either pedal is pressed even slightly. Those are the switches that need to be checked.
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Old 10-05-2016, 03:55 PM   #10
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I'll have to pull them out and test at some point. Anything specific about the light not coming on, and not working when it is after resetting the DME
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Old 12-16-2016, 05:48 PM   #11
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I want to fix this once again. I pulled the panel off too see what switches are there. I have one on the lower end of the clutch with three wires, and one on the brake pedal with four wires.

So my car starts, and my brake lights work, but not the cruise. I have a code for the cruise control saying faulty clutch switch. Should I replace this large white switch, see if it's fixed?

https://www.ecstuning.com/b-genuine-...h/61318363710/
https://www.ecstuning.com/b-genuine-...h/61316967601/
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Old 12-17-2016, 08:35 AM   #12
markusmarkus
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The faulty switch is likely the switch that detects the pressing, however slight, of the clutch pedal.


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Old 12-17-2016, 03:41 PM   #13
BKMrSteel
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Looking in real OEM, those are the only two sensors. Looking on my car, it looks like I'm missing a sensor on the clutch. What part is that if so? Click image for larger version

Name:	ImageUploadedByBimmerApp1482007295.718855.jpg
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This part?
https://www.ecstuning.com/b-genuine-...h/61318381612/

I don't think its this one, as it looks to only have two pins.
https://www.ecstuning.com/b-genuine-...h/61318360421/
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