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Scan check to see what is turning the light on..SIR systems perform a self test every time you turn the ignition on. With cold temps some of the components connectors terminals shrink enough to create a high resistance or open in that circuit. Electrical contact grease solves a lot of these intermittent conditions.If you can pinpoint which component of the SIR system is faulting..it can most likely be remedied with electrical contact grease inserted into the terminals. Unless the component has internal cold issues of course.
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Chris
89 930 slantnose M505
k27, BB headers,kokeln I/C
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