98R1100RT No Spark

Discussion about modern BMW twins
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ibjman
Posts: 65
Joined: Sat Nov 09, 2013 6:35 pm
Location: Phoenix, Arizona

98R1100RT No Spark

Post by ibjman » Sat Oct 31, 2015 6:03 pm

Anyone have a descriptive procedure on how to test the hall effect sensors on 1100RT? I have the Factory service manual.....tells how to replace parts, no information there on testing.

I have determined that I do have ignition on power to one of the five wires going to the hall sensors.

I have determined that I have ignition power to the ignition coil.

I have determined that I do not have the intermittent ground "Trigger" signal coming from the ECM to the coil.

How do I decide weather to look at the hall sensor set or suspect a faulty ecm?

I have inspected & cleaned all the plug connectors with De-Oxit.

I do not have the nifty little BMW LED Timing light box to connect up to the hall sensors.

I am hopeful that someone can tell me how to test the hall sensors at the 5 wire connector plug using a multi-meter.

Thanks, Ibj...

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Steve in Golden
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Joined: Tue Aug 03, 2010 4:30 pm
Location: Golden, CO USA

Re: 98R1100RT No Spark

Post by Steve in Golden » Thu Nov 05, 2015 5:55 pm

Here's a page on advrider that might prove helpful: Diagnosing and Replacing the Oilhead Hall Effect Ignition Impulse Sending Unit. There are probably lots more helpful articles there.

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